Tag Archives: excavator hydraulic

China Hot selling China Manufacture Fixed Type Hydraulic Quick Hitch Quick Coupling for 1-50 Tons Excavator

Product Description

Quick couplers (also called quick hitches) are used with construction machines to allow the rapid change of buckets and attachments on the machine. They remove the need to use hammers to manually drive out and insert the mounting pins for attachments. They can be used on excavator, mini excavator, backhoe loader and so on.

We can supply 3 type: hydraulic type, Double lock type and Mechanical type.

Multi-quick hitch

Multi-Quick Coupler Specification
Model	Unit	RQH01D(a)	RQH01D(b)	RQH02D	RQH04D	RQH06D	RQH08D	RQH10D(a)	RQH10D(b)
Carrier Weight	T	1~2	2~4	4~6	6~8	10~15	15~27	25~32	30~36
Pin Diameter	mm	30	35/40	45	50/55	60/65	70/80	90	90/100
Arm Width(W1)	mm	105~125	110~135	140~180	185~220	220~270	300-340	350~390	390~420
Center To Center(A1)	mm	120~140	140~215	185~290	260~320	340~430	380~490	460~530	480~550
Equipping Distance(A2)	mm	120~140	140~215	185~290	260~320	340~430	380~490	460~530	480~550
Up and Down pin center distance(H1)	mm	125	125	165-175	200	245	275	315
Working Pressure	Bar	40~248	40~248	40~248	40~205	40~205	40~205	40~205	40~205
Oil Flow	L/min	10~20	10~20	10~20	10~20	10~20	10~20	10~20	10~20
Unit Weight	Kg	20	23.5	51-80	110	185	340	500
Unit Length	mm	370	400	505-610	655	820	980	1060
Unit Width	mm	220	240	275-330	312	440	510	560
Unit High	mm	210	210	265-320	335	410	490	560
Lifting Eye Rating	T	1	1	2-3	4	5	8

We can also product hydraulic type and double lock type.

Advantages:

1. Welding Technique: 17 years experience, full welding and not easy to crack.

2. Grease Nipple: Make pin not easy to wear

3. Double Lock System: Front jaw lock and Rear safety lock make the operation much safer. Which embrace the pins tightly even if the cylinder suddenly inoperation.

4. Imported oil cylinder and not easy to damage

5. Without safety pin and excavator operator can operate it in the cab alone.

6. Wide range of application: Compared with fixed C to C distance(A) of routine quick hitch, multi quick hitch is more flexible. It is suitable for all attachments with the C to C distance(A) within its range.

1. Open the cylinder, and ensure slide is fully extended with front jaw safety lock open.

2. Line up attachments and engage front attachments pin.

3. Close the cylinder. This will retract the slide mechanism and this will visibly lock the front jaw safety latch around front attachment pin.

4. Open the cylinder again. The sliding mechanism will extend and engage the rear slide hook CHINAMFG the rear attachment pin.

5. Proceed with connection test.

RAY ATTACHMENTS includes HangZhou CHINAMFG International Trading Company and HangZhou CHINAMFG Precision Machinery Co.,Ltd. It is a Integrated Company dedicated to production, research and development and sales of construction machinery attachments.with 17 years experience. The main products include earth auger, quick hitch, hydraulic breaker, vibro ripper and other heavy duty equipment. Our company covers an area of more than 20000 square CHINAMFG and has more than 150 employees, including professional R & D teams and Sales Department. Welcome to visit!

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hydraulic coupling

What are the maintenance requirements for hydraulic couplings to ensure optimal performance?

Maintaining hydraulic couplings is crucial to ensure their optimal performance and extend their service life. Regular maintenance helps identify potential issues early on and prevents costly breakdowns. Here are the essential maintenance requirements for hydraulic couplings:

Inspection: Regularly inspect the hydraulic coupling for signs of wear, damage, or leaks. Check for any unusual noises, vibrations, or changes in performance during operation.
Lubrication: Ensure proper lubrication of the coupling’s moving parts. Use the manufacturer-recommended lubricants and follow the specified intervals for re-lubrication.
Coupling Alignment: Check and correct the alignment of the driving and driven shafts connected by the coupling. Misalignment can lead to premature wear and reduce coupling efficiency.
Bolt Tightening: Regularly check and tighten the bolts and fasteners securing the coupling. Loose bolts can lead to coupling slippage and compromised power transmission.
Cleanliness: Keep the hydraulic coupling and its surrounding area clean from dirt, debris, and contaminants. Clean the coupling during scheduled maintenance to prevent contamination-related issues.
Temperature and Pressure Checks: Monitor the operating temperature and pressure to ensure they remain within the specified limits for the coupling. Operating beyond the recommended ranges can cause damage and reduce coupling performance.
Overload Prevention: Avoid exceeding the rated torque capacity of the coupling to prevent overload and potential damage to the coupling or connected equipment.
Replacement of Worn Parts: Replace any worn or damaged components of the hydraulic coupling promptly. Follow the manufacturer’s guidelines for part replacement and use genuine spare parts when needed.
Periodic Maintenance: Establish a regular maintenance schedule for the hydraulic coupling based on the operating conditions and manufacturer recommendations. Adhering to this schedule helps identify and address issues before they become severe.
Expert Inspection: If you encounter any unusual performance issues or suspect coupling problems, consult a hydraulic system expert for a detailed inspection and analysis. They can provide valuable insights and recommendations for maintenance and repairs.

Proper and consistent maintenance of hydraulic couplings is essential to ensure their reliability, efficiency, and safe operation. By following the recommended maintenance practices, you can prolong the life of the hydraulic coupling and optimize the performance of your hydraulic system.

hydraulic coupling

What are the standard sizes and thread types available for hydraulic couplings?

Hydraulic couplings come in a variety of sizes and thread types to accommodate different hydraulic system requirements. The standard sizes and thread types are specified based on industry standards and regional norms. Here are some common standard sizes and thread types for hydraulic couplings:

Thread Types:
- NPT (National Pipe Thread): NPT is a widely used thread type in North America. It has a tapered thread design and requires thread sealants like Teflon tape to ensure a leak-free connection.
- BSP (British Standard Pipe): BSP is commonly used in Europe and many other parts of the world. It can have parallel (BSPP) or tapered (BSPT) threads and often requires thread sealants for a secure connection.
- JIC (Joint Industry Council): JIC threads have a 37-degree flare angle and are prevalent in hydraulic systems. They provide a reliable metal-to-metal seal without the need for thread sealants.
- SAE (Society of Automotive Engineers): SAE threads are commonly used in mobile hydraulic applications. They have a 45-degree flare angle and offer excellent sealing capabilities.
- ORFS (O-Ring Face Seal): ORFS fittings feature a flat face with an O-ring seal. They are suitable for high-pressure applications and provide a reliable leak-free connection.
Standard Sizes:
- Hydraulic couplings are available in various standard sizes, typically measured in inches or millimeters. Common sizes for hydraulic couplings include 1/4″, 3/8″, 1/2″, 3/4″, 1″, and 1 1/4″ for smaller couplings and up to larger sizes like 2″, 2 1/2″, and 3″ for heavy-duty industrial applications.
- Metric sizes, such as 6 mm, 10 mm, 12 mm, 16 mm, and 20 mm, are also commonly used in hydraulic systems, especially in countries that follow the metric system.
- Some specialized hydraulic systems may require custom sizes to meet specific application needs.

It’s important to note that while these thread types and sizes are commonly used, there may be other proprietary or industry-specific thread types and sizes depending on the manufacturer or application requirements. When selecting hydraulic couplings, it’s essential to ensure that the chosen couplings match the thread type and size of the corresponding components in the hydraulic system to ensure a proper and secure connection.

Hydraulic coupling manufacturers often provide detailed specifications and technical information about their products, including the available thread types and sizes, to help users select the right couplings for their specific hydraulic system needs.

hydraulic coupling

How do you select the appropriate hydraulic coupling for specific fluid handling needs?

Selecting the right hydraulic coupling for specific fluid handling needs involves considering several critical factors to ensure optimal performance and reliability. Here’s a step-by-step guide to help you make an informed choice:

Fluid Type: Identify the type of fluid that the coupling will handle. Different fluids have varying viscosities and chemical properties, which can impact the compatibility and material selection for the coupling.
Operating Pressure and Temperature: Determine the maximum operating pressure and temperature that the coupling will experience. Ensure that the selected coupling is rated to handle the expected pressure and temperature levels without failure or deformation.
Torque Requirements: Calculate the required torque capacity based on the power transmission needs of your system. Choose a coupling that can handle the anticipated torque while considering safety factors.
Misalignment Tolerance: Evaluate the potential misalignments that may occur between the shafts in your system. Choose a coupling that offers sufficient misalignment tolerance to accommodate these variations without imposing excessive stress on the equipment.
Vibration and Shock: Consider the level of vibration and shock the coupling will experience during operation. Select a coupling that can dampen vibrations and absorb shocks to protect the system components and ensure stable performance.
Installation and Maintenance: Assess the ease of installation and maintenance requirements of the coupling. A well-designed coupling should be easy to install, inspect, and maintain, reducing downtime and maintenance costs.
Environmental Factors: Take into account the environmental conditions in which the coupling will operate. Factors such as exposure to moisture, chemicals, dust, or extreme temperatures may affect the choice of coupling materials and coatings.
Space Constraints: Consider the available space for installing the coupling. Some applications may have limited space, necessitating the use of compact or low-profile couplings.
Coupling Type: Based on the above considerations, choose the most suitable coupling type for your specific fluid handling needs. Consider options such as jaw couplings, disc couplings, fluid couplings, gear couplings, or other specialized couplings based on your application requirements.

It’s essential to consult with coupling manufacturers or industry experts if you have specific or challenging application requirements. They can provide valuable insights and recommendations to ensure you select the right hydraulic coupling that meets your fluid handling needs and maximizes the efficiency and reliability of your system.

China Hot selling China Manufacture Fixed Type Hydraulic Quick Hitch Quick Coupling for 1-50 Tons Excavator
editor by CX 2024-04-02

China manufacturer CHINAMFG Hydraulic Connector PC300/400-5 22t Type Coupling for Excavator

Product Description

GDK Hydraulic Connector PC300/400-5 22T Type Coupling For Excavator

Supply Ability

Supply Ablility:50000PCS/Month

Packaging & Delivery

Packaging Details

Inner is corrugated paper with film shrinkable. outer is carton with film wrapped.

Port: HangZhou, China

Lead Time :

Quantity(Pieces)	1 – 10000	>10000
Est. Time(days)	15	To be negotiated

More Information

Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent,
we can pack the goods in your branded boxes after getting your authorization letters.

Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages
before you pay the balance.

Q3. What is your terms of delivery?
A: EXW

Q4. How about your delivery time?
1) 1-2 days if goods in stock.
2) 10-20 days if goods out of stock with molding.
3) 25-35 days if goods out of stock without molding.

Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and
the courier cost.

Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery

Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them,
no matter where they come from.

Special order: Require for other size or material,please contact us for further discussion about new mould and price.

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hydraulic coupling

Are there specialized hydraulic couplings for high-pressure or high-flow applications?

Yes, there are specialized hydraulic couplings designed to meet the demands of high-pressure and high-flow applications. These specialized couplings are engineered to handle the increased loads, pressures, and flow rates typically encountered in industrial settings where heavy-duty equipment and machinery are used. Here are some types of hydraulic couplings commonly used in such applications:

High-Pressure Hydraulic Couplings: High-pressure hydraulic couplings are constructed with robust materials and advanced sealing technologies to withstand extreme pressure levels. They are commonly used in hydraulic systems that operate at pressures exceeding standard hydraulic system limits. These couplings ensure reliable power transmission and prevent leakage or failure under high-pressure conditions.
Quick-Disconnect Couplings: Quick-disconnect couplings, also known as quick-release or quick-connect couplings, are designed for rapid and efficient connection and disconnection of hydraulic lines. They are prevalent in high-flow applications where frequent connections and disconnections are necessary, such as in construction equipment, agricultural machinery, and manufacturing processes.
Multi-Couplings: Multi-couplings allow the simultaneous connection of multiple hydraulic lines with a single motion. These couplings are suitable for applications with complex hydraulic circuits, such as material handling systems and mobile hydraulics. They simplify the connection process and minimize downtime during equipment setup or maintenance.
High-Flow Hydraulic Couplings: High-flow hydraulic couplings are designed to accommodate large volumetric flow rates in hydraulic systems. They feature larger passageways and flow channels to reduce pressure drop and ensure efficient fluid transfer in applications like heavy machinery, material handling, and large-scale industrial processes.
Flush Face Couplings: Flush face couplings provide a leak-free connection when connected or disconnected. They are suitable for high-pressure applications where minimizing fluid loss during connection and disconnection is critical for safety and environmental reasons.
Flat Face Couplings: Flat face couplings are ideal for high-pressure applications where cleanliness and contamination control are essential. Their flat mating surfaces prevent trapping debris during connection, making them suitable for construction equipment, mining machinery, and other rugged applications.
High-Temperature Hydraulic Couplings: High-temperature hydraulic couplings are designed to operate in extreme temperature environments, such as those encountered in hot industrial processes or near machinery generating significant heat. They use specialized seals and materials that can withstand elevated temperatures without compromising performance.

Specialized hydraulic couplings are engineered to handle the unique challenges posed by high-pressure or high-flow applications, ensuring safe, efficient, and reliable operation in demanding industrial environments. When selecting a hydraulic coupling for such applications, it’s crucial to consider factors like the specific pressure and flow requirements, environmental conditions, compatibility with the hydraulic fluid, and the overall system design to achieve optimal performance and safety.

hydraulic coupling

Where can I find reputable suppliers or manufacturers of hydraulic couplings for my specific hydraulic system requirements?

Finding reputable suppliers or manufacturers of hydraulic couplings is essential to ensure the quality, performance, and compatibility of the couplings with your specific hydraulic system requirements. Here are some methods and sources to help you locate reliable hydraulic coupling suppliers:

Online Directories and Marketplaces: Utilize online industrial directories and marketplaces that list hydraulic coupling manufacturers and suppliers. Websites like ThomasNet, Alibaba, and IndustryNet can provide comprehensive listings with company profiles and product offerings.
Trade Shows and Exhibitions: Attend trade shows and exhibitions focused on fluid power and hydraulic components. These events offer an opportunity to meet suppliers in person, see product demonstrations, and discuss your specific requirements directly with the manufacturers.
Industry Associations: Many industry associations, such as the International Fluid Power Society (IFPS) or the National Fluid Power Association (NFPA), maintain directories of member companies that offer hydraulic couplings and related products. These associations often have strict membership criteria, which can serve as a marker of reputable companies.
Online Search Engines: Conduct a targeted search using online search engines. Use specific keywords related to your hydraulic system requirements, such as “high-pressure hydraulic couplings” or “quick-connect hydraulic couplings,” along with your location to find local suppliers.
Manufacturer Websites: Visit the websites of well-known hydraulic coupling manufacturers. Reputable manufacturers often provide detailed product information, specifications, and contact details, making it easier to assess their suitability for your requirements.
Customer Reviews and Testimonials: Look for customer reviews and testimonials to gauge the reputation and customer satisfaction of potential hydraulic coupling suppliers. Positive feedback from other customers can be an indicator of reliable and reputable manufacturers.

When evaluating hydraulic coupling suppliers, consider the following factors to ensure they meet your specific requirements:

Product Range: Check if the supplier offers a diverse range of hydraulic couplings, including the types, sizes, and configurations that match your needs.
Quality Assurance: Inquire about the supplier’s quality control processes and certifications to ensure their hydraulic couplings meet industry standards and regulatory requirements.
Customization Options: If your hydraulic system requires specialized couplings, confirm if the supplier can provide customization options to meet your unique specifications.
Technical Support: Assess the supplier’s technical expertise and support capabilities to assist with product selection, installation, and troubleshooting.
Pricing and Delivery: Obtain competitive pricing and inquire about delivery lead times to ensure the supplier can meet your budget and project timelines.
After-Sales Service: Inquire about the supplier’s after-sales service, warranty policies, and availability of spare parts to ensure long-term support for your hydraulic couplings.

By conducting thorough research and due diligence, you can find reputable suppliers or manufacturers of hydraulic couplings that align with your specific hydraulic system requirements. Working with reliable suppliers will help you obtain high-quality couplings that contribute to the efficient and reliable operation of your hydraulic system.

hydraulic coupling

Are there specific pressure and temperature limits for different hydraulic coupling designs?

Yes, different hydraulic coupling designs have specific pressure and temperature limits, and these limits can vary based on the coupling type and construction materials. Here are some general considerations regarding pressure and temperature limits for common hydraulic coupling designs:

Jaw Couplings: Jaw couplings typically have a pressure rating ranging from 1000 psi to 5000 psi (6.9 MPa to 34.5 MPa) and can handle temperatures from -20°C to 120°C (-4°F to 248°F). These couplings are suitable for various industrial applications with moderate pressure and temperature requirements.
Disc Couplings: Disc couplings offer higher pressure and temperature capabilities compared to jaw couplings. Their pressure rating can range from 2000 psi to 6000 psi (13.8 MPa to 41.4 MPa), and they can handle temperatures between -50°C to 150°C (-58°F to 302°F). These couplings are commonly used in high-performance and precision equipment.
Fluid Couplings: Fluid couplings are suitable for applications requiring smooth start-ups and shock absorption. Their pressure limits can range from 150 psi to 3000 psi (1.03 MPa to 20.7 MPa), and they can handle temperatures from -40°C to 150°C (-40°F to 302°F). These couplings are often used in heavy machinery, such as conveyors and crushers.
Gear Couplings: Gear couplings have a higher pressure rating, typically ranging from 2500 psi to 8000 psi (17.2 MPa to 55.2 MPa), and can handle temperatures from -20°C to 150°C (-4°F to 302°F). These couplings are commonly used in heavy-duty industrial applications with high torque requirements.
Oldham Couplings: Oldham couplings have pressure limits ranging from 500 psi to 3000 psi (3.4 MPa to 20.7 MPa) and can handle temperatures between -30°C to 100°C (-22°F to 212°F). They are suitable for applications where shafts are not in perfect alignment.
Diaphragm Couplings: Diaphragm couplings offer high pressure and temperature capabilities. Their pressure rating can range from 3000 psi to 10000 psi (20.7 MPa to 68.9 MPa), and they can handle temperatures from -50°C to 200°C (-58°F to 392°F). These couplings are commonly used in high-speed and high-temperature applications like pumps and compressors.
Beam Couplings: Beam couplings typically have a pressure rating ranging from 1000 psi to 4000 psi (6.9 MPa to 27.6 MPa) and can handle temperatures between -40°C to 150°C (-40°F to 302°F). They are commonly used in precision equipment and motion control applications.

It’s essential to consult the manufacturer’s specifications and guidelines for each specific hydraulic coupling design to ensure it is suitable for the intended application’s pressure and temperature requirements. Using a coupling within its specified limits ensures safe and reliable operation and maximizes the performance and lifespan of the hydraulic system.

China manufacturer CHINAMFG Hydraulic Connector PC300/400-5 22t Type Coupling for Excavator
editor by CX 2024-03-14

China wholesaler 8A Excavator Hydraulic Flexible Coupling CF-a-008-S0 Rubber Coupling

Product Description

8A Excavator Hydraulic Flexible Coupling CF-A-008-S0 Rubber Coupling

COUPLING

NO.

LB NO.

Model

OEM NO.

Name

NO.

LB NO.

Model

OEM NO.

Name

NO.

LB NO.

Model

OEM NO.

Name

FG-Q2001

25H 162*92

COUPLING

FG-Q2571

16A

155*76

COUPLING

FG-Q2043

S32S

235*97

COUPLING

FG-Q2002

MS110 DH55

30H 195*105

COUPLING

FG-Q2571

16AS

155*76

COUPLING

KLB-Q2044

S25S

163*58

COUPLING

FG-Q2003

30H

195*105

COUPLING ASSY

FG-Q2571

22A

153*76

COUPLING

KLB-Q2045

E200B

14T

COUPLING

FG-Q2004

EX200-2

40H 170*90

COUPLING

FG-Q2571

25A

185*102

COUPLING

KLB-Q2046

50AC

14T 205*40

COUPLING

FG-Q2005

40H

170*90

COUPLING ASSY

FG-Q2026

25AS

185*102

COUPLING

KLB-Q2047

SH280

COUPLING

FG-Q2006

45H

183*92

COUPLING

FG-Q2571

28A

178*93

COUPLING

KLB-Q2048

E200B 12T

COUPLING

FG-Q2007

45H

183*92

COUPLING ASSY

FG-Q2571

28AS

178*93

COUPLING

KLB-Q2049

50AM 16T

205*45

COUPLING

FG-Q2008

90H

203*107

COUPLING

FG-Q2571

30A

215*118

COUPLING

KLB-Q2050

SH200

14T 205*40

COUPLING

FG-Q2009

90H

203*107

COUPLING ASSY

FG-Q2030

30AS

215*118

COUPLING

KLB-Q2051

E330C

350*145

COUPLING

FG-Q2571

50H

195*110

COUPLING

FG-Q2031

50A

205*108

COUPLING

KLB-Q2052

E330C

COUPLING

FG-Q2011

50H

195*110

COUPLING ASSY

FG-Q2032

50AS

205*108

COUPLING

KLB-Q2053

168mm*48m 26T 3H

COUPLING

FG-Q2012

110H

215*110

COUPLING

FG-Q2033

90A

272*140

COUPLING

KLB-Q2054

242mm*72mm 50T 8H

COUPLING

FG-Q2013

110H

215*110

COUPLING ASSY

FG-Q2034

90AS

272*140

COUPLING

KLB-Q2055

295mm*161mm 48T 12H

COUPLING

FG-Q2014

140H

245*125

COUPLING

FG-Q2035

140A

262*132

COUPLING

KLB-Q2056

352mm*161mm 48T 8H

COUPLING

FG-Q2015

140H

245*125

COUPLING ASSY

FG-Q2036

140AS

262*132

COUPLING

KLB-Q2057

352mm*161mm 46T 8H

COUPLING

FG-Q2016

160H

255*134

COUPLING

FG-Q2037

E300B

16T 278*54

COUPLING

KLB-Q2058

318mm*72mm 50T 8H

COUPLING

FG-Q2017

160H

255*134

COUPLING ASSY

FG-Q2038

E450

16T 360*52

COUPLING

KLB-Q2059

315mm 42T

COUPLING

FG-Q2018

104*53

COUPLING

FG-Q2039

SH430

12T 205*35

COUPLING

KLB-Q2060

268mm*100mm 42T 6H

COUPLING

FG-Q2019

4AS

104*53

COUPLING

FG-Q2040

SH200

14T 205*40

COUPLING

KLB-Q2061

167mm*90mm 47T 3H

COUPLING

FG-Q2571

130*70

COUPLING

FG-Q2041

50ASM

20T 205*40

COUPLING

KLB-Q2062

182mm 42T

COUPLING

FG-Q2571

8AS

130*70

COUPLING

FG-Q2042

SH160(SH60)

15T 173*22

COUPLING

KLB-Q2063

220mm 46T

COUPLING

Ntly Asked Questions:

Q1. What are your packaging conditions?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have a legally registered patent, we can package the goods in your branded box CHINAMFG receipt of your authorization letter.

Q2: What are your payment terms?
A: T/T 30% as deposit and 70% before delivery. We will show you photos of the products and packaging before you pay the balance.

Q3. What are your delivery terms?
A : FOB price

Q4. What is your delivery time?
A: Generally speaking, it takes 15 to 30 days after receiving the advance payment. The exact delivery time depends on the item and quantity of your order. Q5: How do you

keep our business in a long term good relationship?
A: 1. We maintain good quality and competitive prices to ensure our customers benefit;

2.We are sincere in doing business and making friends

Our advantages:
1.Professional: we have about 10 years of experience in the field of mechanical parts and accessories .
2. Quality assurance: we cooperate with major OEM factories in China. We will check the goods strictly before sending to customers.
3. Competitive price: We offer wholesale price for OEM; high quality and after-sale parts.
4. All goods are sufficient to meet your one-stop purchase.
5. One-stop service: you can contact us at any time if you have any questions after you receive the goods. One sale will complete the whole case for the customer.
6. Cheapest shipping cost: We have cooperated with the best freight forwarder for many years, we can quote the cheapest way of shipping for you.

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hydraulic coupling

How do hydraulic couplings contribute to reducing vibrations and noise in hydraulic systems?

Hydraulic couplings play a crucial role in reducing vibrations and noise in hydraulic systems, providing several mechanisms that help dampen and absorb these unwanted effects. Here’s how hydraulic couplings contribute to vibration and noise reduction:

Torsional Flexibility: Hydraulic couplings are designed with torsional flexibility, allowing them to twist and absorb torsional vibrations that may occur during operation. As the fluid flows through the coupling, it acts as a damping medium, attenuating vibrations and minimizing their transmission to the rest of the system.
Vibration Isolation: The inherent flexibility of hydraulic couplings helps isolate vibrations between the driving and driven components of the hydraulic system. This isolation prevents vibrations from propagating through the system, reducing the overall vibration levels and promoting smoother operation.
Shock Absorption: In systems subject to sudden changes in load or pressure, hydraulic couplings can act as shock absorbers. They cushion the impact of these shock loads, preventing them from reverberating through the system and causing noise or damage to sensitive components.
Damping Characteristics: Hydraulic couplings, especially those utilizing a hydraulic fluid medium, exhibit excellent damping characteristics. The fluid dissipates energy by converting kinetic energy into heat energy, effectively reducing the system’s resonant vibrations and noise.
Smooth Power Transmission: Hydraulic couplings provide smooth power transmission between the driving and driven elements. The absence of jerks or sudden changes in torque helps in minimizing vibrations and noise generation, leading to quieter operation.
Compensation for Misalignments: Hydraulic couplings can compensate for certain misalignments between the shafts they connect. By accommodating misalignments, the couplings reduce the stress on the system components, mitigating vibrations that might arise from misalignment-induced forces.
Elimination of Metal-to-Metal Contact: In certain couplings, the use of elastomeric or flexible elements eliminates direct metal-to-metal contact between the driving and driven shafts. This reduces transmission of vibrations and noise, resulting in a quieter system.

By incorporating these vibration and noise-reducing features, hydraulic couplings enhance the overall performance and longevity of hydraulic systems. They contribute to a more pleasant working environment by minimizing noise levels and reducing the risk of fatigue failure caused by excessive vibrations. Additionally, reduced vibrations help prevent premature wear and extend the lifespan of system components, ultimately leading to cost savings and improved efficiency in industrial applications.

hydraulic coupling

What are some real-world examples of successful hydraulic coupling installations and their benefits?

Hydraulic couplings have been successfully implemented in various real-world applications, offering significant benefits in terms of performance, efficiency, and reliability. Here are some examples of successful hydraulic coupling installations and the advantages they provided:

Construction Equipment: In the construction industry, hydraulic couplings are extensively used in excavators, loaders, bulldozers, and cranes. The flexibility and high torque transmission capability of hydraulic couplings ensure smooth and precise movements of heavy machinery, improving productivity and reducing wear on mechanical components. Additionally, the leak-free connections in hydraulic systems prevent fluid loss and environmental contamination.
Industrial Manufacturing: In manufacturing plants, hydraulic couplings are commonly found in various equipment like hydraulic presses, injection molding machines, and metal forming machinery. The instant response and controllability of hydraulic systems, enabled by high-quality couplings, allow precise positioning and repeatable operations, ensuring consistent product quality and reducing material waste.
Agricultural Machinery: Hydraulic couplings play a vital role in agricultural machinery, such as tractors, harvesters, and irrigation systems. The ability to handle varying loads and pressures in hydraulic couplings ensures efficient operation in different farming tasks. Moreover, the robustness and resistance to environmental factors contribute to the longevity and reliability of the agricultural equipment.
Mobile Equipment: Mobile hydraulic applications, including waste collection trucks, fire trucks, and utility service vehicles, benefit from hydraulic couplings’ compact design and versatility. Hydraulic systems with the right couplings offer precise control, even in confined spaces, making them suitable for diverse mobile operations.
Material Handling: Hydraulic couplings are integral to material handling equipment like forklifts, conveyor systems, and pallet stackers. The smooth acceleration and deceleration provided by hydraulic couplings improve safety and handling efficiency, allowing operators to maneuver heavy loads with ease.
Offshore and Marine: In offshore and marine applications, hydraulic couplings are used in cranes, winches, and other systems. The hermetically sealed magnetic couplings, for instance, prevent fluid leakage in critical marine environments, reducing maintenance costs and minimizing the risk of contamination in sensitive marine ecosystems.

The benefits of these successful hydraulic coupling installations include:

Improved Performance: Hydraulic couplings enable precise control and efficient power transmission, resulting in improved equipment performance and productivity.
Energy Efficiency: Hydraulic couplings with reduced pressure losses and optimized fluid flow contribute to energy savings, making hydraulic systems more environmentally friendly and cost-effective.
Enhanced Safety: The reliability and leak-free operation of hydraulic couplings increase operational safety, reducing the risk of accidents and equipment failures.
Extended Equipment Lifespan: Properly selected and maintained hydraulic couplings contribute to the longevity of hydraulic systems, reducing downtime and maintenance costs.
Environmental Protection: Hydraulic couplings, especially those with non-leak designs, help prevent fluid spills and reduce the impact of hydraulic systems on the environment.

These real-world examples illustrate the versatility and advantages of hydraulic couplings across different industries. The proper selection and installation of hydraulic couplings can significantly enhance the performance, efficiency, and reliability of various hydraulic systems, delivering long-term benefits for businesses and end-users alike.

hydraulic coupling

What are the different types of hydraulic couplings used in various industrial applications?

Hydraulic couplings come in various types and designs to suit different industrial applications. Some of the commonly used types include:

Jaw Couplings: Jaw couplings are versatile and widely used in industrial machinery. They consist of two hubs with interlocking jaws that transmit torque between the shafts. These couplings provide good misalignment capacity and vibration damping.
Disc Couplings: Disc couplings use a series of thin, flexible metal discs to transmit torque. They offer high torsional stiffness and can accommodate misalignments. They are commonly found in high-performance applications and precision equipment.
Fluid Couplings: Fluid couplings use hydraulic fluid to transmit torque. They are suitable for applications requiring smooth start-ups and shock absorption. These couplings are often used in heavy machinery, such as conveyors and crushers.
Gear Couplings: Gear couplings consist of gear teeth on the hubs that mesh with each other to transmit torque. They offer high torque capacity and can handle misalignments and shock loads. Gear couplings are commonly used in heavy-duty industrial applications.
Oldham Couplings: Oldham couplings use a sliding disc in the middle to transmit torque. They provide high misalignment capacity and are used in applications where shafts are not in perfect alignment.
Diaphragm Couplings: Diaphragm couplings use a thin metal diaphragm to transmit torque. They provide high torsional stiffness and can handle high speeds and misalignments. These couplings are used in applications like pumps and compressors.
Beam Couplings: Beam couplings use helical cuts in a flexible beam to transmit torque. They are lightweight and have good misalignment capacity. Beam couplings are used in precision equipment and motion control applications.
Universal Joints: While not a traditional hydraulic coupling, universal joints are used in fluid power transmission applications. They provide flexibility in transmitting torque at varying angles and are commonly found in drivetrains and automotive systems.

Each type of hydraulic coupling has its advantages and limitations, making them suitable for specific industrial applications based on factors like torque requirements, misalignment tolerance, and operating conditions. Proper selection and maintenance of hydraulic couplings are essential to ensure efficient power transmission and prolong the life of the machinery.

China wholesaler 8A Excavator Hydraulic Flexible Coupling CF-a-008-S0 Rubber Coupling
editor by CX 2024-03-07

China Hot selling Jpl00001-up Excavator Coupling Quick Coupler Hydraulic Pump 162-6177 1626177

Product Description

JPL

Basic information:

Brand Name:YNF
Part Name:Planet Carrier
Outer Packing:Carton
Means of Transport:Ocean,Land,Air
Packing:Standard package or as request
Processing:Forging
Standard or Nonstandard:Standard
Application:Excavator
Inner Packing:Shrink Film
After-sales Service:Online Support
Place of Origin:HangZhou, China
Item:Rubber Coupling

Parts information:

Pos.	Part No	Qty	Parts name
1.	190-2787 M	[4]	BOLT-SOCKET HEAD (M16X2X60-MM)
2.	7Y- 0571	[4]	PIN-SPRING
3.	162-6210 Y	[1]	COUPLING GP-FLEXIBLE
	M		METRIC PART
	Y		SEPARATE ILLUSTRATION

About us:

specialized in:

couplings, rubber mounts, gera parts, hydraulic seals and seal kits for hydraulic hammers, rock breakers, hydraulic excavators,wheel loaders, and JCB badkhoe loaders.

And, Our company also supply:

Engine parts, hydraulic piston pump and hydraulic travel motor, Swing motor assembly and hydraulic component parts, electric parts, etc. Hydraulic hammer breaker parts with piston, cylinder, chisel, through bolt, side bolt, top bush, front head bushing,accumlator, valve, etc.

We always try our best for all our customers and make it better and better. Welcome!

Products Show:

FAQ

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

hydraulic coupling

Can hydraulic couplings be used in applications involving corrosive or aggressive fluids?

Yes, hydraulic couplings can be used in applications involving corrosive or aggressive fluids, but the choice of materials and design considerations is critical to ensure compatibility and long-term performance. Corrosive fluids, such as acids, alkalis, and certain chemicals, can pose significant challenges to hydraulic systems. Here are some key factors to consider when using hydraulic couplings in such applications:

Material Selection: Choose hydraulic couplings made from materials that are resistant to the specific corrosive fluid being handled. Stainless steel, certain alloys, and corrosion-resistant coatings are common choices for couplings in corrosive environments.
Sealing Solutions: Ensure that the couplings have effective sealing solutions to prevent fluid leakage. High-quality seals and gaskets that are compatible with the corrosive fluid are essential to maintain system integrity.
Chemical Compatibility: Thoroughly assess the chemical compatibility between the hydraulic fluid and the coupling materials. Consider the fluid’s temperature, concentration, and potential reactions with the coupling components.
Special Coatings: In some cases, using hydraulic couplings with specialized coatings or treatments can enhance their resistance to corrosion and aggressive fluids.
Regular Inspection and Maintenance: Implement a stringent inspection and maintenance schedule to monitor the condition of the hydraulic couplings and detect any signs of corrosion or degradation. Promptly replace any damaged or worn couplings to prevent fluid leaks and system failure.
Fluid Contamination: Corrosive fluids can lead to the formation of contaminants in the hydraulic system. Implement effective filtration and contamination control measures to prevent particle buildup and system damage.
Operating Conditions: Consider the temperature, pressure, and flow conditions of the system, as these factors can impact the corrosion resistance of the couplings and the overall system performance.

While hydraulic couplings can be used in corrosive or aggressive fluid applications, it is essential to consult with coupling manufacturers or fluid system experts to ensure proper material selection and system design. They can provide guidance on selecting the most suitable hydraulic couplings and recommend additional measures to protect the system from the adverse effects of corrosive fluids.

By employing the right materials, adopting proper maintenance practices, and taking the necessary precautions, hydraulic couplings can effectively function in applications involving corrosive or aggressive fluids, providing reliable and safe fluid power transmission.

hydraulic coupling

What are some real-world examples of successful hydraulic coupling installations and their benefits?

Construction Equipment: In the construction industry, hydraulic couplings are extensively used in excavators, loaders, bulldozers, and cranes. The flexibility and high torque transmission capability of hydraulic couplings ensure smooth and precise movements of heavy machinery, improving productivity and reducing wear on mechanical components. Additionally, the leak-free connections in hydraulic systems prevent fluid loss and environmental contamination.
Industrial Manufacturing: In manufacturing plants, hydraulic couplings are commonly found in various equipment like hydraulic presses, injection molding machines, and metal forming machinery. The instant response and controllability of hydraulic systems, enabled by high-quality couplings, allow precise positioning and repeatable operations, ensuring consistent product quality and reducing material waste.
Agricultural Machinery: Hydraulic couplings play a vital role in agricultural machinery, such as tractors, harvesters, and irrigation systems. The ability to handle varying loads and pressures in hydraulic couplings ensures efficient operation in different farming tasks. Moreover, the robustness and resistance to environmental factors contribute to the longevity and reliability of the agricultural equipment.
Mobile Equipment: Mobile hydraulic applications, including waste collection trucks, fire trucks, and utility service vehicles, benefit from hydraulic couplings’ compact design and versatility. Hydraulic systems with the right couplings offer precise control, even in confined spaces, making them suitable for diverse mobile operations.
Material Handling: Hydraulic couplings are integral to material handling equipment like forklifts, conveyor systems, and pallet stackers. The smooth acceleration and deceleration provided by hydraulic couplings improve safety and handling efficiency, allowing operators to maneuver heavy loads with ease.
Offshore and Marine: In offshore and marine applications, hydraulic couplings are used in cranes, winches, and other systems. The hermetically sealed magnetic couplings, for instance, prevent fluid leakage in critical marine environments, reducing maintenance costs and minimizing the risk of contamination in sensitive marine ecosystems.

The benefits of these successful hydraulic coupling installations include:

Improved Performance: Hydraulic couplings enable precise control and efficient power transmission, resulting in improved equipment performance and productivity.
Energy Efficiency: Hydraulic couplings with reduced pressure losses and optimized fluid flow contribute to energy savings, making hydraulic systems more environmentally friendly and cost-effective.
Enhanced Safety: The reliability and leak-free operation of hydraulic couplings increase operational safety, reducing the risk of accidents and equipment failures.
Extended Equipment Lifespan: Properly selected and maintained hydraulic couplings contribute to the longevity of hydraulic systems, reducing downtime and maintenance costs.
Environmental Protection: Hydraulic couplings, especially those with non-leak designs, help prevent fluid spills and reduce the impact of hydraulic systems on the environment.

hydraulic coupling

What is a hydraulic coupling, and how does it function in fluid power transmission?

A hydraulic coupling is a mechanical device used in fluid power systems to transmit power from one shaft to another, often at different angles or distances. It facilitates the transfer of hydraulic energy from a prime mover, such as an electric motor or an internal combustion engine, to various hydraulic components, such as pumps, actuators, and cylinders.

The main function of a hydraulic coupling is to transmit rotational motion and power while accommodating misalignments and torsional vibrations. It acts as a link between the driving and driven shafts, ensuring that the hydraulic system operates smoothly and efficiently.

Hydraulic couplings operate based on the principle of hydraulic fluid transmission. The coupling consists of two main parts, the input (driving) and output (driven) elements, both of which have specially designed vanes or blades. These vanes are submerged in hydraulic fluid.

When the input element rotates, it creates a flow of hydraulic fluid around the vanes, which in turn generates pressure on the output element. The pressure difference between the two elements causes the output element to start rotating, effectively transmitting power from the input shaft to the output shaft.

Hydraulic couplings are advantageous in various applications due to their ability to:

Isolate Shock Loads: They can isolate and dampen shock loads and torsional vibrations, protecting sensitive components from sudden jolts and improving overall system performance.
Accommodate Misalignment: Hydraulic couplings can accommodate misalignment between the input and output shafts, reducing wear and tear on the system and extending the lifespan of the components.
Provide Overload Protection: They offer overload protection by slipping or disengaging when the torque exceeds a certain threshold, preventing damage to the system and its components.
Start-Up Assistance: Hydraulic couplings can provide smooth start-up assistance, gradually transmitting power as the fluid builds up pressure, minimizing shock and stress during system startup.
Reduce Noise and Vibration: By dampening vibrations and shock loads, hydraulic couplings contribute to quieter and smoother operation of fluid power systems.

Overall, hydraulic couplings play a critical role in fluid power transmission, ensuring efficient power transfer, protecting components from shocks and vibrations, and enhancing the overall performance and reliability of hydraulic systems in various industrial and mobile applications.

China Hot selling Jpl00001-up Excavator Coupling Quick Coupler Hydraulic Pump 162-6177 1626177
editor by CX 2024-03-04

China Custom Excavator Rubber Flexible Coupling Assy 50K Hydraulic Pump Coupling Pet-50K-PU for CHINAMFG

Product Description

Excavator Rubber Flexible Coupling Assy 50k Hydraulic Pump Coupling PET-50K-PU For VOLVO

COUPLING

NO.

LB NO.

Model

OEM NO.

Name

NO.

LB NO.

Model

OEM NO.

Name

NO.

LB NO.

Model

OEM NO.

Name

FG-Q2001

25H 162*92

COUPLING

FG-Q2571

16A

155*76

COUPLING

FG-Q2043

S32S

235*97

COUPLING

FG-Q2002

MS110 DH55

30H 195*105

COUPLING

FG-Q2571

16AS

155*76

COUPLING

KLB-Q2044

S25S

163*58

COUPLING

FG-Q2003

30H

195*105

COUPLING ASSY

FG-Q2571

22A

153*76

COUPLING

KLB-Q2045

E200B

14T

COUPLING

FG-Q2004

EX200-2

40H 170*90

COUPLING

FG-Q2571

25A

185*102

COUPLING

KLB-Q2046

50AC

14T 205*40

COUPLING

FG-Q2005

40H

170*90

COUPLING ASSY

FG-Q2026

25AS

185*102

COUPLING

KLB-Q2047

SH280

COUPLING

FG-Q2006

45H

183*92

COUPLING

FG-Q2571

28A

178*93

COUPLING

KLB-Q2048

E200B 12T

COUPLING

FG-Q2007

45H

183*92

COUPLING ASSY

FG-Q2571

28AS

178*93

COUPLING

KLB-Q2049

50AM 16T

205*45

COUPLING

FG-Q2008

90H

203*107

COUPLING

FG-Q2571

30A

215*118

COUPLING

KLB-Q2050

SH200

14T 205*40

COUPLING

FG-Q2009

90H

203*107

COUPLING ASSY

FG-Q2030

30AS

215*118

COUPLING

KLB-Q2051

E330C

350*145

COUPLING

FG-Q2571

50H

195*110

COUPLING

FG-Q2031

50A

205*108

COUPLING

KLB-Q2052

E330C

COUPLING

FG-Q2011

50H

195*110

COUPLING ASSY

FG-Q2032

50AS

205*108

COUPLING

KLB-Q2053

168mm*48m 26T 3H

COUPLING

FG-Q2012

110H

215*110

COUPLING

FG-Q2033

90A

272*140

COUPLING

KLB-Q2054

242mm*72mm 50T 8H

COUPLING

FG-Q2013

110H

215*110

COUPLING ASSY

FG-Q2034

90AS

272*140

COUPLING

KLB-Q2055

295mm*161mm 48T 12H

COUPLING

FG-Q2014

140H

245*125

COUPLING

FG-Q2035

140A

262*132

COUPLING

KLB-Q2056

352mm*161mm 48T 8H

COUPLING

FG-Q2015

140H

245*125

COUPLING ASSY

FG-Q2036

140AS

262*132

COUPLING

KLB-Q2057

352mm*161mm 46T 8H

COUPLING

FG-Q2016

160H

255*134

COUPLING

FG-Q2037

E300B

16T 278*54

COUPLING

KLB-Q2058

318mm*72mm 50T 8H

COUPLING

FG-Q2017

160H

255*134

COUPLING ASSY

FG-Q2038

E450

16T 360*52

COUPLING

KLB-Q2059

315mm 42T

COUPLING

FG-Q2018

104*53

COUPLING

FG-Q2039

SH430

12T 205*35

COUPLING

KLB-Q2060

268mm*100mm 42T 6H

COUPLING

FG-Q2019

4AS

104*53

COUPLING

FG-Q2040

SH200

14T 205*40

COUPLING

KLB-Q2061

167mm*90mm 47T 3H

COUPLING

FG-Q2571

130*70

COUPLING

FG-Q2041

50ASM

20T 205*40

COUPLING

KLB-Q2062

182mm 42T

COUPLING

FG-Q2571

8AS

130*70

COUPLING

FG-Q2042

SH160(SH60)

15T 173*22

COUPLING

KLB-Q2063

220mm 46T

COUPLING

Ntly Asked Questions:

Q2: What are your payment terms?
A: T/T 30% as deposit and 70% before delivery. We will show you photos of the products and packaging before you pay the balance.

Q3. What are your delivery terms?
A : FOB price

keep our business in a long term good relationship?
A: 1. We maintain good quality and competitive prices to ensure our customers benefit;

2.We are sincere in doing business and making friends

/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

hydraulic coupling

Can hydraulic couplings handle both angular and axial misalignments simultaneously?

Yes, hydraulic couplings are designed to handle both angular and axial misalignments simultaneously. These couplings have inherent flexibility in their design, allowing them to accommodate various types of misalignments between the driving and driven shafts.

Angular misalignment occurs when the axes of the two shafts are not collinear, resulting in an angle between them. Axial misalignment, on the other hand, refers to the offset between the two shafts along their axis. Hydraulic couplings can compensate for these misalignments without sacrificing their ability to transmit torque efficiently.

The design of hydraulic couplings typically includes features such as flexible elements, torsional flexibility, or a fluid medium that allows the coupling to absorb and compensate for misalignments. When misalignment occurs, the flexible elements or fluid within the coupling act as a buffer, transmitting torque smoothly and reducing stress on the connected components.

By accommodating both angular and axial misalignments, hydraulic couplings offer several advantages in various applications:

Reduced Wear: Hydraulic couplings’ ability to handle misalignments helps reduce wear and tear on the shafts, bearings, and other components, prolonging the life of the equipment.
Smooth Operation: The ability to compensate for misalignments results in smoother operation and reduced vibrations, contributing to overall system performance and precision.
Overload Protection: Hydraulic couplings can provide overload protection by allowing slippage when torque exceeds the coupling’s capacity, protecting the system from damage.
Shock Absorption: In systems subject to shock loads or sudden changes in torque, hydraulic couplings can absorb and dampen these shocks, preventing damage to the equipment.
Maintenance Reduction: By minimizing stress on the system components, hydraulic couplings can help reduce maintenance requirements and downtime.

It is important to note that the extent of misalignment accommodation may vary depending on the specific design and type of hydraulic coupling. Manufacturers provide guidelines and specifications for each coupling, including the maximum allowable misalignments.

Overall, hydraulic couplings’ ability to handle both angular and axial misalignments simultaneously makes them a versatile choice for various industrial applications where precision, efficiency, and reliable power transmission are essential.

hydraulic coupling

How do hydraulic couplings ensure efficient torque transmission and prevent fluid leaks?

Hydraulic couplings are designed with specific features to ensure efficient torque transmission and prevent fluid leaks, making them vital components in hydraulic systems. These features contribute to the overall performance and reliability of the hydraulic system. Here’s how hydraulic couplings achieve these goals:

High-Quality Materials: Hydraulic couplings are manufactured using high-quality materials, such as steel, stainless steel, brass, or other durable alloys. These materials offer excellent strength and wear resistance, allowing the couplings to withstand high torque and pressure loads without deforming or leaking.
Precision Machining: Hydraulic couplings undergo precise machining processes to achieve tight tolerances and smooth surfaces. This ensures proper alignment and mating of coupling components, minimizing energy losses and enhancing torque transmission efficiency.
Sealing Mechanisms: Hydraulic couplings incorporate various sealing mechanisms to prevent fluid leaks. O-rings, seals, or face seals are common sealing methods used in hydraulic couplings. When the coupling components are connected, the seals create a secure barrier, preventing hydraulic fluid from escaping the system.
Leak-Free Designs: Modern hydraulic couplings often feature leak-free designs that minimize the risk of fluid leakage during operation. These designs utilize advanced sealing technologies and tight tolerances to ensure a reliable and durable connection, even under high-pressure conditions.
Threaded Connections: Many hydraulic couplings use threaded connections, such as NPT, BSP, JIC, or SAE threads, to create a secure and leak-resistant joint. Properly tightened threaded connections maintain the integrity of the hydraulic system, reducing the likelihood of leaks.
Quick-Connect Couplings: Quick-connect hydraulic couplings are designed for rapid and easy connection and disconnection, often without the need for additional tools. These couplings use internal valves and seals to ensure a leak-free connection when engaged and prevent fluid leaks when disengaged.
Hermetically Sealed Couplings: In specific applications, hermetically sealed hydraulic couplings use magnetic coupling technology to provide a non-contact, leak-free transmission of torque and power. These couplings have no physical contact points, making them suitable for critical environments or systems handling hazardous fluids.

The combination of these design features ensures that hydraulic couplings efficiently transmit torque from one component to another while maintaining a secure and reliable seal to prevent fluid leaks. This is particularly important in hydraulic systems, where fluid leakage can lead to reduced performance, increased maintenance, and potential safety hazards.

Proper selection, installation, and maintenance of hydraulic couplings are crucial to optimize their torque transmission capabilities and prevent fluid leaks. Regular inspections and replacement of worn-out seals or damaged couplings are essential to ensure the continued efficiency and safety of the hydraulic system.

In summary, hydraulic couplings play a crucial role in efficient torque transmission and fluid sealing in hydraulic systems. Their robust construction, precision engineering, and advanced sealing technologies contribute to the overall performance and reliability of hydraulic machinery and equipment.

hydraulic coupling

What is a hydraulic coupling, and how does it function in fluid power transmission?

Hydraulic couplings are advantageous in various applications due to their ability to:

Isolate Shock Loads: They can isolate and dampen shock loads and torsional vibrations, protecting sensitive components from sudden jolts and improving overall system performance.
Accommodate Misalignment: Hydraulic couplings can accommodate misalignment between the input and output shafts, reducing wear and tear on the system and extending the lifespan of the components.
Provide Overload Protection: They offer overload protection by slipping or disengaging when the torque exceeds a certain threshold, preventing damage to the system and its components.
Start-Up Assistance: Hydraulic couplings can provide smooth start-up assistance, gradually transmitting power as the fluid builds up pressure, minimizing shock and stress during system startup.
Reduce Noise and Vibration: By dampening vibrations and shock loads, hydraulic couplings contribute to quieter and smoother operation of fluid power systems.

China Custom Excavator Rubber Flexible Coupling Assy 50K Hydraulic Pump Coupling Pet-50K-PU for CHINAMFG
editor by CX 2024-02-23

China OEM China Wholesale Excavator Flange Coupling Hydraulic Pump Rubber Coupling

Product Description

China Wholesale Excavator Flange Coupling Hydraulic Pump Rubber Coupling

Name	Hydraulic pump coupling
Category Group	Rubber Parts
Product Name	Flange Coupling
Application	Excavator/Wheel loader/Truck
Warranty	Half years
Used	Excavator Model
Stock Condition	In Stock

Advantage

1.Delivery is fast

2.Sincere service

3.Small order allowed

4.Reasonable price&High quality

More Excavator coupling for your review

1. 8A: SK04V2 PC20

2.16A: PC60 PC40 EX50

3. 16AS: PC40-5 EX55

4. 30A: SK100-5 CHINAMFG MS70B E307

5. 30AS: EX60 HD250 S60-6 SK07

6. 30H: MS110 DH55

7. 40H: EX200-2

8. 50A: E312 E120B HD450 E3118B

9. 50AS: MS120 MS110 MS140 HD512 SH120 LS120 HD450 E120 SH100

10. 50AC 14T : E200B SH200

11. 50AM 16T: MS180-8 E320 E240

12. 50H: EX200-1 EX200-3 EX200-5 HD700 PC200-1 HD800 PC200-3 PC200-5 HD900 E320

SK200 SK220 R210 LS160 LS70 E320B SK200-6 SK200-3 E320C DH220-5 R220-5 R225-7

13. 110H: EX220 EX300-1 EX300-2 EX300-3 SK230 SK220-3 ZAX330 EX350-5 EX330 E325 LS430 EX300

14.140H: HD280 HD1430 PC300-1HD1250 R300 HD300 E330 SK912 SK820 HD1880 DH320-2

15. 160H: LS380 R290 R300-5 SH300A2

16. 28AS: EX120

17. 28A: ZAX200

18. 45H: ZAX200

19. 25H: R60-7 ZAX55

20. 50AM 20T: SH280

We also have stock in these parts:
1. Crank shaft, various sun gear, various planet gears, drive shaft, various travel coupling, transmission gear, speed cut gear, various travel gear discs, travel bearing cover, minor axis, varous drive shaft, vertical shaft
2. Excavator bearing

Products Show:

What are the maintenance requirements for hydraulic couplings to ensure optimal performance?

Inspection: Regularly inspect the hydraulic coupling for signs of wear, damage, or leaks. Check for any unusual noises, vibrations, or changes in performance during operation.
Lubrication: Ensure proper lubrication of the coupling’s moving parts. Use the manufacturer-recommended lubricants and follow the specified intervals for re-lubrication.
Coupling Alignment: Check and correct the alignment of the driving and driven shafts connected by the coupling. Misalignment can lead to premature wear and reduce coupling efficiency.
Bolt Tightening: Regularly check and tighten the bolts and fasteners securing the coupling. Loose bolts can lead to coupling slippage and compromised power transmission.
Cleanliness: Keep the hydraulic coupling and its surrounding area clean from dirt, debris, and contaminants. Clean the coupling during scheduled maintenance to prevent contamination-related issues.
Temperature and Pressure Checks: Monitor the operating temperature and pressure to ensure they remain within the specified limits for the coupling. Operating beyond the recommended ranges can cause damage and reduce coupling performance.
Overload Prevention: Avoid exceeding the rated torque capacity of the coupling to prevent overload and potential damage to the coupling or connected equipment.
Replacement of Worn Parts: Replace any worn or damaged components of the hydraulic coupling promptly. Follow the manufacturer’s guidelines for part replacement and use genuine spare parts when needed.
Periodic Maintenance: Establish a regular maintenance schedule for the hydraulic coupling based on the operating conditions and manufacturer recommendations. Adhering to this schedule helps identify and address issues before they become severe.
Expert Inspection: If you encounter any unusual performance issues or suspect coupling problems, consult a hydraulic system expert for a detailed inspection and analysis. They can provide valuable insights and recommendations for maintenance and repairs.

hydraulic coupling

How do hydraulic couplings ensure efficient torque transmission and prevent fluid leaks?

High-Quality Materials: Hydraulic couplings are manufactured using high-quality materials, such as steel, stainless steel, brass, or other durable alloys. These materials offer excellent strength and wear resistance, allowing the couplings to withstand high torque and pressure loads without deforming or leaking.
Precision Machining: Hydraulic couplings undergo precise machining processes to achieve tight tolerances and smooth surfaces. This ensures proper alignment and mating of coupling components, minimizing energy losses and enhancing torque transmission efficiency.
Sealing Mechanisms: Hydraulic couplings incorporate various sealing mechanisms to prevent fluid leaks. O-rings, seals, or face seals are common sealing methods used in hydraulic couplings. When the coupling components are connected, the seals create a secure barrier, preventing hydraulic fluid from escaping the system.
Leak-Free Designs: Modern hydraulic couplings often feature leak-free designs that minimize the risk of fluid leakage during operation. These designs utilize advanced sealing technologies and tight tolerances to ensure a reliable and durable connection, even under high-pressure conditions.
Threaded Connections: Many hydraulic couplings use threaded connections, such as NPT, BSP, JIC, or SAE threads, to create a secure and leak-resistant joint. Properly tightened threaded connections maintain the integrity of the hydraulic system, reducing the likelihood of leaks.
Quick-Connect Couplings: Quick-connect hydraulic couplings are designed for rapid and easy connection and disconnection, often without the need for additional tools. These couplings use internal valves and seals to ensure a leak-free connection when engaged and prevent fluid leaks when disengaged.
Hermetically Sealed Couplings: In specific applications, hermetically sealed hydraulic couplings use magnetic coupling technology to provide a non-contact, leak-free transmission of torque and power. These couplings have no physical contact points, making them suitable for critical environments or systems handling hazardous fluids.

hydraulic coupling

What are the different types of hydraulic couplings used in various industrial applications?

Hydraulic couplings come in various types and designs to suit different industrial applications. Some of the commonly used types include:

Jaw Couplings: Jaw couplings are versatile and widely used in industrial machinery. They consist of two hubs with interlocking jaws that transmit torque between the shafts. These couplings provide good misalignment capacity and vibration damping.
Disc Couplings: Disc couplings use a series of thin, flexible metal discs to transmit torque. They offer high torsional stiffness and can accommodate misalignments. They are commonly found in high-performance applications and precision equipment.
Fluid Couplings: Fluid couplings use hydraulic fluid to transmit torque. They are suitable for applications requiring smooth start-ups and shock absorption. These couplings are often used in heavy machinery, such as conveyors and crushers.
Gear Couplings: Gear couplings consist of gear teeth on the hubs that mesh with each other to transmit torque. They offer high torque capacity and can handle misalignments and shock loads. Gear couplings are commonly used in heavy-duty industrial applications.
Oldham Couplings: Oldham couplings use a sliding disc in the middle to transmit torque. They provide high misalignment capacity and are used in applications where shafts are not in perfect alignment.
Diaphragm Couplings: Diaphragm couplings use a thin metal diaphragm to transmit torque. They provide high torsional stiffness and can handle high speeds and misalignments. These couplings are used in applications like pumps and compressors.
Beam Couplings: Beam couplings use helical cuts in a flexible beam to transmit torque. They are lightweight and have good misalignment capacity. Beam couplings are used in precision equipment and motion control applications.
Universal Joints: While not a traditional hydraulic coupling, universal joints are used in fluid power transmission applications. They provide flexibility in transmitting torque at varying angles and are commonly found in drivetrains and automotive systems.

China OEM China Wholesale Excavator Flange Coupling Hydraulic Pump Rubber Coupling
editor by CX 2024-02-21

China Custom 951572 40 95157240 Hydraulic Pump Coupling Element Coupling for PC1000 PC2000 PC3000 PC4000 PC1250 Excavator Parts

Product Description

957240 Hydraulic Pump Coupling Element Coupling for PC1000 PC2000 PC3000 PC4000 PC1250 Excavator Parts

9571240 PC1000 Valve Block Assembly Information

Product name	95157240 PC1000 Coupling
Model NO.	PC1000,PC2000 PC3000
Fit brand	KOMATS-U
Part number	9571240 PC1000
Color	As per standard color
Fit equipment	Volvo;Excavator
Application	Construction works,resell;Volvo
Section code	Working hydraulics / Main control valve, boom and bucket and travel
Section code	Working hydraulics
Type	Hydraulic control valve seal kit
Payment terms	L/C, D/A, D/P, T/T, Western Union, MoneyGram
Packaging	Nuetral packaging or OEM packaging
Shipping mode	By air, by sea, by express
By express	Post FedEx , UPS,DHL,TNT etc
Forwarder	Your local forwarder or we find for you
Quality	Stable quality,OEM standard,Genuine/Aftermarket
Loading port	Xihu (West Lake) Dis. port,China

More other KOMATS-U CATALOG we can provide

9571440	TERMINAL	9571140	UNION
9571540	SEAL, FLANGE	9571640	HYDRALIC MOT
9571640	SEALK	9571940	BUFFER RING
9571840	SEAL	9571540	SWITCH, PRES
9571440	AIR CLEANER	9571940	HOSE
9571340	CABLE 1=1 ME	9571040	HOSE
9571040	UNION	9571140	COUPLING
9571240	VALVE	9571240	COUPLING
9571440	INDICATOR	9571340	T-DISTRIBUTO
9571540	FLUID LEVEL	9571840	VALVE, BLOCK
9571640	VALVE	9571940	CONTROL BLOC
9571840	GUAGE OIL LE	9571040	VALVE BLOCK
9571940	GUAGE, OIL	9571140	VALVE BLOCK
9571040	CLIP, HOSE	9571240	VALVE BLOCK
9571140	GENERATOR24V	9571340	SENDING UNIT
9571340	HEATER	9571640	BLOCK, CONTR
9571540	CONVERTER	9571840	EXTINGUISHER
9571640	CONVERTER	9571040	CAMSWITCH
9571440	INDICATOR	9571140	CLIP
9571540	GASKET	9571240	CLIP, HOSE
9571640	GASKET	9571340	HOSE 1=1 MET
9571740	SEAL	9571440	HOSE PROTECT
9571840	SEAL	9571540	SEAT, FOLDIN
9571940	RING	9571840	HOSE
9571040	SEAL	9 0571 040	HOSE
9571140	RING	9 0571 140	HOSE
90765710	O-RING	9571640	HOSE
9571340	O-RING	9571940	SEAL
9571440	INDICATOR	90780440	HOSE PROTECT
90761740	UNION	9571540	VALVE
90761840	SWITCH, MAIN	9571640	VALVE
9 0571 140	VALVE, ANTIC	9571740	VALVE
9 0571 240	PUMP, PILOT	9571840	PUMP
9 0571 440	GROMMET	90761440	FAN
90765040	LUBE STATION	9 0571 140	CABLE
90765140	TEMP. SENSOR	9 0571 440	FILTER
90765340	TUBING P60 1	9 0571 540	BUTTON
90765740	ROD SEAL	9 0571 640	RING
90765840	RING	9 0571 740	DUST SEAL
9 0571 240	HOSE 1=1 MET	9 0571 840	ROD SEAL
9 0571 440	SOCKET	9 0571 940	BUFFER RING
9 0571 540	ELBOW	90767040	SWITCH
9 0571 640	ELBOW	90767240	SWITCH
9 0571 840	ELBOW	90767540	ADAPTER
9 0571 240	FITTING	90767840	LUB PUMP STA
9 0571 340	FITTING	957140	CLAMP
9 0571 740	TEMPERATURSE	9 0571 840	CABLE
9 0571 340	CABLE	9 0571 940	CABLE GLAND
9 0571 440	UNION	9571040	FITTING
9 0571 540	CABLE UNION	9 0571 740	CABLE

More other Control Blocks we can provide

KOBELCO	SK60	SK70	SK75	SK07-N2	SK07/2/7
	SK100	SK120-3-5-6	SK125	SK160	SK200-1-3-5-6-8
	SK210	SK220-3-6	SK230	SK250	SK260
	SK300-3-6	SK320	SK330	SK400	SK450
DAEWOO	DH55	DH60	DH80	DH130	DH150
	DH200	DH220	DH215	DH220	DH258
	DH280	DH300	DH360	DH370-9	DH400
	DH420	DH500	UH07	K907C
HYUNDAI	R60	R80	R130-5-7	R150	R200
	R200-5	R210	R210-7	R215-7	R220-5
	R225-7	R260-5	R265	R290	R300-5
	R305	R320	R385	R420	R450-3-5
VOLVO	EC55B	EC140B	EC210	EC240	EC290B
VOLVO	EC290B PRIME	EC360	EC460	EC700
KKUBOTA	U10	U20	U25	KX35	KX50
	KX61-2/-3	KX71-2/-3	KX85	KX135	KX155
	KX161	KX121
YUCHAI	YC35	YC60	YC85	YC135
YANMAR	YM55	YM75
SAMSUNG	SE210LC	SE210LC	SE210LC	SE210LC	SE210LC
BOBCA-T	E10	E14	E17	X320	X320
TAKEUCHI	TB108	TB016	TB125	TB145	TB250
MITSUBISH	MS110/MS120	MS180	MS230	MS280
LOADER	980C	966D	950E	950C	936E
KOMATS-U	PC20	PC30	PC35	PC40	PC45
	PC60-1-3-5-6-7	PC75	PC100-3-5	PC120-3-5	PC150
	PC200-1-3-5-6-7-8	PC220-1-3-5-6	PC300-1-3-5-6-7	PC350	PC400-3-5-6
CA-TERPILLAR	E55/E55B	E70/E70B	E110/E110B	E120/E120B	E180
	E215	E225DLC	E235	E240	E300B
	E307	E300J	E305	E311/E312	E320/E200B
	E322	E324	E325	E330	E339
	E345	E450
HITACHI	EX30	EX40	EX55	EX60-1-2-3-5	EX70
	EX100-1-3	EX120-1-3-5	EX150	EX200-1-2-3-5-8	EX220
	EX230	EX270	EX300-1-2-3-5-6	EX400-1-2-3-5	EX600
	UH043	UH052	UH053	UH07	UH081
	UH082	UH083	ZAXIS 60	ZAXIS 200-3-6	ZAXIS 240
	ZAXIS 270	ZAXIS 330	ZAXIS 360	ZAXIS 450	ZAXIS 870
	ZAXIS 110	ZAXIS 120
BULLDOZER	D20	D3	D30	D31	D3L
	D3C	D37	D3D	D4C	D40
	D4D	D4H	D41	D45	D50/D5/D5B
	D53/D57/D58	D60/D65	D6D/D6	D6C	D6H
	D65=D85ESS-2	D75	D7G/D7	D80/D85	D85A-12
	D8K	D8N	D9N	D135	D150
	D155	D255
KATO	HD80	HD140	HD250	HD400(HD450)	HD550
	HD700(HD770)	HD820(HD850)	HD880	HD900	HD1571
	HD1220	HD1250	HD1430	HD2053
SUMITOMO	SH60	SH70	SH100	SH120	SH200
	SH210	SH220	SH280	SH300	SH320
	SH350	SH360	SH400	SH450	SH460
	LS2800FJ	S340	S430

Our Main Products

If you have other breaker spare parts demand,such as Travel Motor,Travel Gearbox,Travel Device,Final Drive,Swing Motor,Swing Gearbox,Swing Motor Assy,Swing Device,Hydraulic Pump,Engine,Hydraulic Gear Pump,Piston Shoes,Cylnder Block,Valve Plate,Arm CYL’ Seal,Boom CYL’ Seal,Bucket CYL’ Seal, Bucket,Teeth,Track Roller,Top Roller,Spocket,Track Link,Monitor,Controller,etc,please click the below picture for more information,we believe we can save much of your timeand be your ONE STOP supplier.

Applicable To Excavator Model Number

Komats*u	PC56-7 PC60-8 PC70-8 PC110-7 PC130-7 PC160-7 PC200-7 PC200-8 PC200LC-8 PC210-8 PC210LC-8
	PC220-8 PC240LC-8 HB205-1 HB215LC-1
	PC270-7 PC300-7 PC360-7 PC400-8 PC450-8 OTHERS
Kobelco	SK130-8 SK135-8 SK140-8 SK200-6 SK200-8 SK210-8 SK250-8 SK260LC-9 SK330-6 SK200-6E SK250-6E
	SK230-6E SK330 SK350-6E SK350-8 SK55SR-5 SK55SRX SK60-C SK60-8 SK70SR-2 SK75-8 SK130 SK135SR-2 SK140LC SK140LC-8 SK210LC-8 SK250-8
	SK260LC-8 SK270D SK330-8 SK350LC-8 SK380D SK460-8 SK480 SK480-8 SK495D SK850LC OTHERS
Doosan	DH85 DH150W DH215-9 DH220-5 DH220-7 DH225-7 DH225-9 DH258-7 DH300-V DH360 DH300LC-7 DX260 DH370 DH420 DH55 DX60 DH60-7 DX75 DX80
	DX120 DX150LC DH150LC-7 DH215-9 DH215-9E DH220LC-9E DH225LC-9 DX260LC DX300LC DH300LC-7 DX345LC DH370LC-9 DX380LC DX420LC
	DH420LC-7 DX500LC DH500LC-7 DX700LC
Kobuto	KX71-2 KX71-3 KX61-2 KX71 KX61 KX91.3
Hitachi	EX35 ZX30CLR EX30.2
Daewood	130 150
Sumitomo	SH200 SH200-1 SH 200-2 SH200-Z3 SH200-A3 SH240-A5 SH350-3 SH350 SH360 SH365
Jacob	JCB200 JCB210 JCB220 JCB240 JCB802.7
CASE	CX210B CX240B CK25 CX350 CX365 CX360
Yanmar	B25 B25V B37V VIQ30 B22
SAN*Y	SY65 SY75 SY135 SY215 SY215-8 SY205-8 SY215-8S SY205-9 SY215-9 SY235-8 SY245 SY305 SY285
SAN*Y	SY335 SY365 SY375 SY385 SY465 SY700 SY485H
XCM*G	XCMG160D XCMG200DA XCMG250 XCMG260 XCMG370 XCMG470

We could supply the following Excavator spare parts

Engine Assembly	Final Drive Assy	Hydraulic Pump	Gear Pump
Swing Motor	Travel Motor	Fan Motor	Electrical Parts
Swing Gearbox	Travel Gearbox	Relief Valve	Distribution Valve
Front Idler	Adjust Cylinder	Carrier Roller	Spocket
Track Roller	Track Shoe	Track Link	Excavator Track Assy
Teeth/Tooth	Adaptor/Teeth Seat	Muffler	Bucket

Our Company–Xihu (West Lake) Dis.an Machinery/KoKo Shop

Koko Shop Machine Co.,Ltd(EBSeals) is aprofessional supplier for hydraulic breaker parts and excavator parts and OEM hydraulic seals manufacturer. We specialize in completed seal kits and separate seals for hydraulic breaker and excavator more than Ten years in HangZhou,China.Koko Shop supplyal most all brands breakers’parts like Seal kits,Diaphragm,Piston,Chisel,Wear Bush upper and lower,Rod Pin,Through Bolts,Side Bolts,Control Valve,Front Head,Cylinder,Accumulator,N2 GasCharging Kit,etc.We insiston high quality partswith genuineand OEM CHINAMFG replacement parts.

Our Advantages

1 Excavator spare parts in full scale are available;

2 100% quality assurance,developand manufacture follow original ones;

3 Quickre sponse within 24 hours;

4 Small order allowed;

5 Reasonable stock and timely delivery;

6 Original packing,neutral packing or customized packing;

7 Positive customer feedback froma broad market;

8 Excellent Aftersales service.

FAQ

Q1. How many days for the delivery time ?

It is about 1-7 working days after the order confirmation.

Q2. What kind of payments you accept?

Now we accept T/T,L/C or Western Union,other terms also could be negotiated,Recommended Trade Assurance to guarantee buyer’s property.

Q3. Are you able to manufacturing products according to customer’s design?

Sure,we have made many special orders from oversea for 10 years since 2571. So we have enough ability to deal with any cases. OEM certificate is available to provided.

Q4. What’s your advantages in the machinery manufacturing industry?

Fast delivery time,High quality products,Best customer service,Adopting the latest production technology.

Q5. Which countries have you been exported recently?

Canada,Australia,Peru,Egypt,Brazil,Mexico,South Africa,etc.

Q6. Are you sure that your product will suit for our excavator?

We have different brand hydraulic breakers. Show me your model number,and we can give you best match products.

Q7. How about the packing of the goods?

Standard export package,wood cases,or as customers’ demands.

/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

hydraulic coupling

How do hydraulic couplings contribute to reducing vibrations and noise in hydraulic systems?

Torsional Flexibility: Hydraulic couplings are designed with torsional flexibility, allowing them to twist and absorb torsional vibrations that may occur during operation. As the fluid flows through the coupling, it acts as a damping medium, attenuating vibrations and minimizing their transmission to the rest of the system.
Vibration Isolation: The inherent flexibility of hydraulic couplings helps isolate vibrations between the driving and driven components of the hydraulic system. This isolation prevents vibrations from propagating through the system, reducing the overall vibration levels and promoting smoother operation.
Shock Absorption: In systems subject to sudden changes in load or pressure, hydraulic couplings can act as shock absorbers. They cushion the impact of these shock loads, preventing them from reverberating through the system and causing noise or damage to sensitive components.
Damping Characteristics: Hydraulic couplings, especially those utilizing a hydraulic fluid medium, exhibit excellent damping characteristics. The fluid dissipates energy by converting kinetic energy into heat energy, effectively reducing the system’s resonant vibrations and noise.
Smooth Power Transmission: Hydraulic couplings provide smooth power transmission between the driving and driven elements. The absence of jerks or sudden changes in torque helps in minimizing vibrations and noise generation, leading to quieter operation.
Compensation for Misalignments: Hydraulic couplings can compensate for certain misalignments between the shafts they connect. By accommodating misalignments, the couplings reduce the stress on the system components, mitigating vibrations that might arise from misalignment-induced forces.
Elimination of Metal-to-Metal Contact: In certain couplings, the use of elastomeric or flexible elements eliminates direct metal-to-metal contact between the driving and driven shafts. This reduces transmission of vibrations and noise, resulting in a quieter system.

hydraulic coupling

How do hydraulic couplings ensure efficient torque transmission and prevent fluid leaks?

High-Quality Materials: Hydraulic couplings are manufactured using high-quality materials, such as steel, stainless steel, brass, or other durable alloys. These materials offer excellent strength and wear resistance, allowing the couplings to withstand high torque and pressure loads without deforming or leaking.
Precision Machining: Hydraulic couplings undergo precise machining processes to achieve tight tolerances and smooth surfaces. This ensures proper alignment and mating of coupling components, minimizing energy losses and enhancing torque transmission efficiency.
Sealing Mechanisms: Hydraulic couplings incorporate various sealing mechanisms to prevent fluid leaks. O-rings, seals, or face seals are common sealing methods used in hydraulic couplings. When the coupling components are connected, the seals create a secure barrier, preventing hydraulic fluid from escaping the system.
Leak-Free Designs: Modern hydraulic couplings often feature leak-free designs that minimize the risk of fluid leakage during operation. These designs utilize advanced sealing technologies and tight tolerances to ensure a reliable and durable connection, even under high-pressure conditions.
Threaded Connections: Many hydraulic couplings use threaded connections, such as NPT, BSP, JIC, or SAE threads, to create a secure and leak-resistant joint. Properly tightened threaded connections maintain the integrity of the hydraulic system, reducing the likelihood of leaks.
Quick-Connect Couplings: Quick-connect hydraulic couplings are designed for rapid and easy connection and disconnection, often without the need for additional tools. These couplings use internal valves and seals to ensure a leak-free connection when engaged and prevent fluid leaks when disengaged.
Hermetically Sealed Couplings: In specific applications, hermetically sealed hydraulic couplings use magnetic coupling technology to provide a non-contact, leak-free transmission of torque and power. These couplings have no physical contact points, making them suitable for critical environments or systems handling hazardous fluids.

hydraulic coupling

Can you explain the working principle of a hydraulic coupling and its advantages over other coupling types?

A hydraulic coupling operates based on the principle of hydraulic fluid transmission to transfer power from one shaft to another. It consists of two main parts: the input (driving) element and the output (driven) element, both of which have specially designed vanes or blades submerged in hydraulic fluid.

When the input element rotates, it creates a flow of hydraulic fluid around the vanes. The fluid flow generates pressure on the output element, causing it to start rotating. This pressure difference between the input and output elements facilitates the transfer of torque and power from the driving shaft to the driven shaft.

The working principle of a hydraulic coupling allows it to accommodate misalignments and torsional vibrations. It effectively isolates shock loads, provides overload protection, and dampens vibrations, making it ideal for various industrial applications.

Advantages of hydraulic couplings over other coupling types include:

Misalignment Tolerance: Hydraulic couplings can handle significant shaft misalignments, reducing wear and tear on the system and prolonging the life of the components. Other coupling types may have limitations in this regard.
Vibration Damping: Hydraulic couplings can effectively dampen vibrations, preventing damage to connected equipment and promoting smoother operation. This advantage is especially critical in precision machinery and applications where vibrations can affect accuracy and performance.
Overload Protection: Hydraulic couplings offer built-in overload protection. When the torque exceeds a certain threshold, the fluid coupling slips or disengages, preventing damage to the system and its components. Other coupling types may not have this automatic overload protection.
Smooth Start-up: Hydraulic couplings provide gradual power transmission during start-up, which helps minimize shock and stress on the system. This feature is beneficial for systems with heavy loads or delicate components.
Quiet Operation: Due to their vibration-damping properties, hydraulic couplings contribute to quieter operation, reducing noise levels in the machinery compared to some other coupling types.
Wide Range of Applications: Hydraulic couplings are suitable for a wide range of industrial applications, including heavy machinery, mining equipment, conveyors, pumps, and more. Their adaptability and robust performance make them a popular choice in various industries.

While hydraulic couplings offer many advantages, the selection of the appropriate coupling type ultimately depends on the specific requirements of the application, such as torque, speed, misalignment, and environmental conditions. Properly choosing and maintaining the coupling can significantly improve the efficiency, reliability, and overall performance of fluid power transmission systems in industrial settings.

China Custom 951572 40 95157240 Hydraulic Pump Coupling Element Coupling for PC1000 PC2000 PC3000 PC4000 PC1250 Excavator Parts
editor by CX 2024-02-14

China supplier Bucket Couplings for Excavator Bucket Hydraulic Quick Connector Sk200

Product Description

HEADLINE	Bucket Couplings for Excavator bucket hydraulic quick connector sk200
PART NAME	Hook Excavator
PART NUMBER	HGWF2018 / Customized
MATERIAL	Q345B, 40Cr.
FEATURES	1/ OEM, according to customer’s demand, can match most Brands machines 2/ High steel toughness and good CHINAMFG resistance for hard environment. 3/ Multi-purpose and easy for operating. 4/ High Standard components and parts.
PRODUCT APPLICATION	Machinery Repair Shops, Manufacturing Plant, Farms, Construction works , Energy & Mining.
MANUFACTURING PROCESS	Fabrication Welding.
MOQ	1 set (It is able to provide a few samples first time)
PACKAGE	Pallet or Wooden case.
PAYMENT TERM	T/T, Western Union.
DELIEVERY TIME	Within 7 workdays according to your order.
TRANSPORTATION	DHL/FEDEX/UPS/TNT/ARAMEX, AIR & SEA

CHINAMFG always persist in the principle of “Integrity Based, Customers Top”, giving great care to the overall processes such as from production, quoting, purchasing to packing and transporting. What we are pursuing is not just profit margin, but rather a lasting CHINAMFG partnership with you. Our professional team serve to customers from all over the worlds. We adhere to the concept of “Quality first, create the best” is increasing the value to customers and partners. Our key advantage over other is our attitude toward quality. We know what′s right, and not what just good enough. This is reflected in our quick response, technical analyze of drawings, proactive approach in passing on our production experience to help clients reduce cost and improve designs. In Foreign Trade Department we also cooperate with the best and most experienced factories with approved ISO 9001 in China. We work closely with these factories to offer quick delivery and quality service to our customers. We can help you stock a parts warehouse with quality factory parts for dealer service after the sale. If you are a distributor or dealer, please ask about our program to help build a parts warehouse for your company. CHINAMFG have a close relationship with these factories and can supply mixed product shipping if necessary.

Hiugong’s Cooperated Brands include: XCMG, Sany, Zoomlion, Liugong, Lonking, Shantui, XGMA, Sunward, Lovol, Sem, Yuchai, Xihu (West Lake) Dis.n, Weichai, SDLG, YTO. Caterpillar, KOMATSU, HITACHI, CHINAMFG Construction Equipment, Liebherr, DOOSAN, John Deere, JCB, Terex, Sandvik, Wirtgen, Kobelco, Hyundai.

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hydraulic coupling

Can hydraulic couplings be used in applications involving corrosive or aggressive fluids?

Material Selection: Choose hydraulic couplings made from materials that are resistant to the specific corrosive fluid being handled. Stainless steel, certain alloys, and corrosion-resistant coatings are common choices for couplings in corrosive environments.
Sealing Solutions: Ensure that the couplings have effective sealing solutions to prevent fluid leakage. High-quality seals and gaskets that are compatible with the corrosive fluid are essential to maintain system integrity.
Chemical Compatibility: Thoroughly assess the chemical compatibility between the hydraulic fluid and the coupling materials. Consider the fluid’s temperature, concentration, and potential reactions with the coupling components.
Special Coatings: In some cases, using hydraulic couplings with specialized coatings or treatments can enhance their resistance to corrosion and aggressive fluids.
Regular Inspection and Maintenance: Implement a stringent inspection and maintenance schedule to monitor the condition of the hydraulic couplings and detect any signs of corrosion or degradation. Promptly replace any damaged or worn couplings to prevent fluid leaks and system failure.
Fluid Contamination: Corrosive fluids can lead to the formation of contaminants in the hydraulic system. Implement effective filtration and contamination control measures to prevent particle buildup and system damage.
Operating Conditions: Consider the temperature, pressure, and flow conditions of the system, as these factors can impact the corrosion resistance of the couplings and the overall system performance.

hydraulic coupling

Can hydraulic couplings be retrofitted into existing hydraulic systems for improved performance?

Yes, hydraulic couplings can be retrofitted into existing hydraulic systems to enhance performance, improve reliability, and address specific system requirements. Retrofitting hydraulic couplings can be a cost-effective way to upgrade older systems without the need for extensive modifications or complete replacements.

Retrofitting hydraulic couplings may be beneficial for several reasons:

Improved Efficiency: Upgrading to modern hydraulic couplings with better design features can reduce energy losses and improve overall system efficiency. For example, switching from older, less efficient couplings to newer, more streamlined designs can optimize fluid flow and reduce pressure drop.
Leak Reduction: Older hydraulic systems may experience fluid leaks due to worn-out or damaged couplings. Retrofitting with new, high-quality couplings equipped with advanced sealing technologies can significantly reduce the risk of leaks, leading to better system reliability and environmental safety.
Higher Pressure and Flow Capabilities: Newer hydraulic couplings may offer higher pressure and flow ratings, allowing the system to handle increased demands or heavier loads. This can be crucial for applications that require more power and performance.
Material Compatibility: In some cases, existing hydraulic systems may have components made from materials that are not compatible with certain hydraulic fluids. Retrofitting with appropriate couplings can ensure compatibility and prevent corrosion or other fluid-related issues.
Space Constraints: Modern hydraulic couplings often come in more compact designs, which can be advantageous for systems with limited space. Retrofitting with smaller couplings may allow for better system integration and improved layout.
Environmental Compliance: Retrofitting hydraulic couplings can help align the system with current environmental regulations and industry standards, reducing the risk of potential fines or non-compliance issues.

Before retrofitting hydraulic couplings, careful evaluation of the existing system is necessary to ensure compatibility and identify specific areas for improvement. Factors such as thread type, size, pressure rating, flow capacity, and material compatibility must be considered to select the appropriate couplings for the retrofit.

It’s essential to consult with hydraulic coupling manufacturers or experienced fluid power professionals when planning a retrofit. They can provide guidance on suitable coupling options and recommend the necessary modifications or adjustments to optimize system performance.

In conclusion, retrofitting hydraulic couplings into existing hydraulic systems can be a viable solution for enhancing performance, reducing leaks, and achieving better overall efficiency and reliability. It allows businesses to leverage the latest advancements in hydraulic coupling technology to extend the lifespan and improve the functionality of their existing hydraulic systems.

hydraulic coupling

What is a hydraulic coupling, and how does it function in fluid power transmission?

Hydraulic couplings are advantageous in various applications due to their ability to:

Isolate Shock Loads: They can isolate and dampen shock loads and torsional vibrations, protecting sensitive components from sudden jolts and improving overall system performance.
Accommodate Misalignment: Hydraulic couplings can accommodate misalignment between the input and output shafts, reducing wear and tear on the system and extending the lifespan of the components.
Provide Overload Protection: They offer overload protection by slipping or disengaging when the torque exceeds a certain threshold, preventing damage to the system and its components.
Start-Up Assistance: Hydraulic couplings can provide smooth start-up assistance, gradually transmitting power as the fluid builds up pressure, minimizing shock and stress during system startup.
Reduce Noise and Vibration: By dampening vibrations and shock loads, hydraulic couplings contribute to quieter and smoother operation of fluid power systems.

China supplier Bucket Couplings for Excavator Bucket Hydraulic Quick Connector Sk200
editor by CX 2024-02-12

China Best Sales Hcw00001-up Excavator Coupling Flexible Natural Rubber Hydraulic Parts 2666280

Product Description

HCW

Basic information:

Material	Genuine material
Feature	1) One-stop Shopping Experience 2) Different Quality Level for Customers to Choose 3) Full Excavator Parts Product Lines
Classification	Construction Machinery Parts; Excavator Parts
OEM service	Yes
Payment	T/T, Western Union, etc.
Port	HangZhou
Quotation	Based on OEM parts or genuine parts, packing, quantity andother requirements
MOQ	For many products, we don’t have MOQ limited.
Application	Excavator

About us:

specialized in:

couplings, rubber mounts, gera parts, hydraulic seals and seal kits for hydraulic hammers, rock breakers, hydraulic excavators,wheel loaders, and JCB badkhoe loaders.

And, Our company also supply:

We always try our best for all our customers and make it better and better. Welcome!

Products Show:

FAQ

/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

hydraulic coupling

Can hydraulic couplings be used in applications involving corrosive or aggressive fluids?

Material Selection: Choose hydraulic couplings made from materials that are resistant to the specific corrosive fluid being handled. Stainless steel, certain alloys, and corrosion-resistant coatings are common choices for couplings in corrosive environments.
Sealing Solutions: Ensure that the couplings have effective sealing solutions to prevent fluid leakage. High-quality seals and gaskets that are compatible with the corrosive fluid are essential to maintain system integrity.
Chemical Compatibility: Thoroughly assess the chemical compatibility between the hydraulic fluid and the coupling materials. Consider the fluid’s temperature, concentration, and potential reactions with the coupling components.
Special Coatings: In some cases, using hydraulic couplings with specialized coatings or treatments can enhance their resistance to corrosion and aggressive fluids.
Regular Inspection and Maintenance: Implement a stringent inspection and maintenance schedule to monitor the condition of the hydraulic couplings and detect any signs of corrosion or degradation. Promptly replace any damaged or worn couplings to prevent fluid leaks and system failure.
Fluid Contamination: Corrosive fluids can lead to the formation of contaminants in the hydraulic system. Implement effective filtration and contamination control measures to prevent particle buildup and system damage.
Operating Conditions: Consider the temperature, pressure, and flow conditions of the system, as these factors can impact the corrosion resistance of the couplings and the overall system performance.

hydraulic coupling

How do hydraulic couplings compare to other coupling types, such as mechanical or magnetic couplings?

Hydraulic couplings, mechanical couplings, and magnetic couplings are three distinct types of couplings used in various applications to transmit power between shafts. Each type of coupling offers specific advantages and limitations, making them suitable for different scenarios. Here’s a comparison of hydraulic couplings with mechanical and magnetic couplings:

Power Transmission:
- Hydraulic Couplings: Hydraulic couplings transmit power using hydraulic fluid to transfer torque between connected shafts. They are well-suited for applications with varying torque demands, as the fluid medium can accommodate fluctuations and dampen shock loads.
- Mechanical Couplings: Mechanical couplings directly connect the shafts through solid mechanical links, such as rigid couplings or flexible couplings (e.g., gear, jaw, or disc couplings). They efficiently transmit power without losses, making them suitable for high-torque applications.
- Magnetic Couplings: Magnetic couplings use magnetic fields to transfer torque between shafts. They offer non-contact power transmission, which eliminates the need for mechanical seals, making them suitable for applications requiring hermetic sealing, such as pumps handling hazardous fluids.
Speed and Torque:
- Hydraulic Couplings: Hydraulic couplings can accommodate variations in speed and torque within their design limits. They offer good torque-to-inertia ratio, enabling smooth acceleration and deceleration in hydraulic systems.
- Mechanical Couplings: Mechanical couplings maintain precise shaft alignment and have high torque capacity. However, they may not handle speed variations as effectively as hydraulic couplings.
- Magnetic Couplings: Magnetic couplings are not suitable for high-torque applications, but they offer excellent speed control and precise torque transmission without direct contact between shafts.
Maintenance and Wear:
- Hydraulic Couplings: Hydraulic couplings may require periodic maintenance, such as seal replacements, to ensure proper operation. They experience wear due to fluid flow and pressure.
- Mechanical Couplings: Mechanical couplings have mechanical wear and may require lubrication and maintenance to sustain optimal performance and prevent misalignment over time.
- Magnetic Couplings: Magnetic couplings have minimal wear and require less maintenance due to their non-contact nature. They are less prone to mechanical failures but may require magnetic field adjustments.
Environmental Considerations:
- Hydraulic Couplings: Hydraulic couplings may require hydraulic fluid, which must be properly managed and maintained. They can be susceptible to fluid leakage if not adequately sealed.
- Mechanical Couplings: Mechanical couplings can generate friction and heat during operation, which may require cooling measures in high-speed applications.
- Magnetic Couplings: Magnetic couplings are hermetically sealed, preventing fluid leakage and offering environmental advantages in applications where containment is critical.

The selection of the most appropriate coupling type depends on the specific requirements of the application, including torque, speed, environmental factors, maintenance considerations, and cost. Each coupling type offers unique features that cater to diverse industrial needs, making them valuable components in numerous mechanical systems.

hydraulic coupling

How do you select the appropriate hydraulic coupling for specific fluid handling needs?

Fluid Type: Identify the type of fluid that the coupling will handle. Different fluids have varying viscosities and chemical properties, which can impact the compatibility and material selection for the coupling.
Operating Pressure and Temperature: Determine the maximum operating pressure and temperature that the coupling will experience. Ensure that the selected coupling is rated to handle the expected pressure and temperature levels without failure or deformation.
Torque Requirements: Calculate the required torque capacity based on the power transmission needs of your system. Choose a coupling that can handle the anticipated torque while considering safety factors.
Misalignment Tolerance: Evaluate the potential misalignments that may occur between the shafts in your system. Choose a coupling that offers sufficient misalignment tolerance to accommodate these variations without imposing excessive stress on the equipment.
Vibration and Shock: Consider the level of vibration and shock the coupling will experience during operation. Select a coupling that can dampen vibrations and absorb shocks to protect the system components and ensure stable performance.
Installation and Maintenance: Assess the ease of installation and maintenance requirements of the coupling. A well-designed coupling should be easy to install, inspect, and maintain, reducing downtime and maintenance costs.
Environmental Factors: Take into account the environmental conditions in which the coupling will operate. Factors such as exposure to moisture, chemicals, dust, or extreme temperatures may affect the choice of coupling materials and coatings.
Space Constraints: Consider the available space for installing the coupling. Some applications may have limited space, necessitating the use of compact or low-profile couplings.
Coupling Type: Based on the above considerations, choose the most suitable coupling type for your specific fluid handling needs. Consider options such as jaw couplings, disc couplings, fluid couplings, gear couplings, or other specialized couplings based on your application requirements.

China Best Sales Hcw00001-up Excavator Coupling Flexible Natural Rubber Hydraulic Parts 2666280
editor by CX 2024-02-12

China factory Bucket Quick Coupling Hydraulic Multi Coupler for Mini Excavator

Product Description

We can supply 3 type: hydraulic type, Double lock type and Mechanical type.

Multi-quick hitch

Multi-Quick Coupler Specification
Model	Unit	RQH01D(a)	RQH01D(b)	RQH02D	RQH04D	RQH06D	RQH08D	RQH10D(a)	RQH10D(b)
Carrier Weight	T	1~2	2~4	4~6	6~8	10~15	15~27	25~32	30~36
Pin Diameter	mm	30	35/40	45	50/55	60/65	70/80	90	90/100
Arm Width(W1)	mm	105~125	110~135	140~180	185~220	220~270	300-340	350~390	390~420
Center To Center(A1)	mm	120~140	140~215	185~290	260~320	340~430	380~490	460~530	480~550
Equipping Distance(A2)	mm	120~140	140~215	185~290	260~320	340~430	380~490	460~530	480~550
Up and Down pin center distance(H1)	mm	125	125	165-175	200	245	275	315
Working Pressure	Bar	40~248	40~248	40~248	40~205	40~205	40~205	40~205	40~205
Oil Flow	L/min	10~20	10~20	10~20	10~20	10~20	10~20	10~20	10~20
Unit Weight	Kg	20	23.5	51-80	110	185	340	500
Unit Length	mm	370	400	505-610	655	820	980	1060
Unit Width	mm	220	240	275-330	312	440	510	560
Unit High	mm	210	210	265-320	335	410	490	560
Lifting Eye Rating	T	1	1	2-3	4	5	8

We can also product hydraulic type and double lock type.

Advantages:

1. Welding Technique: 17 years experience, full welding and not easy to crack.

2. Grease Nipple: Make pin not easy to wear

3. Double Lock System: Front jaw lock and Rear safety lock make the operation much safer. Which embrace the pins tightly even if the cylinder suddenly inoperation.

4. Imported oil cylinder and not easy to damage

5. Without safety pin and excavator operator can operate it in the cab alone.

1. Open the cylinder, and ensure slide is fully extended with front jaw safety lock open.

2. Line up attachments and engage front attachments pin.

3. Close the cylinder. This will retract the slide mechanism and this will visibly lock the front jaw safety latch around front attachment pin.

4. Open the cylinder again. The sliding mechanism will extend and engage the rear slide hook CHINAMFG the rear attachment pin.

5. Proceed with connection test.

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hydraulic coupling

Can hydraulic couplings be used in applications involving corrosive or aggressive fluids?

Material Selection: Choose hydraulic couplings made from materials that are resistant to the specific corrosive fluid being handled. Stainless steel, certain alloys, and corrosion-resistant coatings are common choices for couplings in corrosive environments.
Sealing Solutions: Ensure that the couplings have effective sealing solutions to prevent fluid leakage. High-quality seals and gaskets that are compatible with the corrosive fluid are essential to maintain system integrity.
Chemical Compatibility: Thoroughly assess the chemical compatibility between the hydraulic fluid and the coupling materials. Consider the fluid’s temperature, concentration, and potential reactions with the coupling components.
Special Coatings: In some cases, using hydraulic couplings with specialized coatings or treatments can enhance their resistance to corrosion and aggressive fluids.
Regular Inspection and Maintenance: Implement a stringent inspection and maintenance schedule to monitor the condition of the hydraulic couplings and detect any signs of corrosion or degradation. Promptly replace any damaged or worn couplings to prevent fluid leaks and system failure.
Fluid Contamination: Corrosive fluids can lead to the formation of contaminants in the hydraulic system. Implement effective filtration and contamination control measures to prevent particle buildup and system damage.
Operating Conditions: Consider the temperature, pressure, and flow conditions of the system, as these factors can impact the corrosion resistance of the couplings and the overall system performance.

hydraulic coupling

What are the standard sizes and thread types available for hydraulic couplings?

Thread Types:
- NPT (National Pipe Thread): NPT is a widely used thread type in North America. It has a tapered thread design and requires thread sealants like Teflon tape to ensure a leak-free connection.
- BSP (British Standard Pipe): BSP is commonly used in Europe and many other parts of the world. It can have parallel (BSPP) or tapered (BSPT) threads and often requires thread sealants for a secure connection.
- JIC (Joint Industry Council): JIC threads have a 37-degree flare angle and are prevalent in hydraulic systems. They provide a reliable metal-to-metal seal without the need for thread sealants.
- SAE (Society of Automotive Engineers): SAE threads are commonly used in mobile hydraulic applications. They have a 45-degree flare angle and offer excellent sealing capabilities.
- ORFS (O-Ring Face Seal): ORFS fittings feature a flat face with an O-ring seal. They are suitable for high-pressure applications and provide a reliable leak-free connection.
Standard Sizes:
- Hydraulic couplings are available in various standard sizes, typically measured in inches or millimeters. Common sizes for hydraulic couplings include 1/4″, 3/8″, 1/2″, 3/4″, 1″, and 1 1/4″ for smaller couplings and up to larger sizes like 2″, 2 1/2″, and 3″ for heavy-duty industrial applications.
- Metric sizes, such as 6 mm, 10 mm, 12 mm, 16 mm, and 20 mm, are also commonly used in hydraulic systems, especially in countries that follow the metric system.
- Some specialized hydraulic systems may require custom sizes to meet specific application needs.

hydraulic coupling

Can you explain the working principle of a hydraulic coupling and its advantages over other coupling types?

Advantages of hydraulic couplings over other coupling types include:

Misalignment Tolerance: Hydraulic couplings can handle significant shaft misalignments, reducing wear and tear on the system and prolonging the life of the components. Other coupling types may have limitations in this regard.
Vibration Damping: Hydraulic couplings can effectively dampen vibrations, preventing damage to connected equipment and promoting smoother operation. This advantage is especially critical in precision machinery and applications where vibrations can affect accuracy and performance.
Overload Protection: Hydraulic couplings offer built-in overload protection. When the torque exceeds a certain threshold, the fluid coupling slips or disengages, preventing damage to the system and its components. Other coupling types may not have this automatic overload protection.
Smooth Start-up: Hydraulic couplings provide gradual power transmission during start-up, which helps minimize shock and stress on the system. This feature is beneficial for systems with heavy loads or delicate components.
Quiet Operation: Due to their vibration-damping properties, hydraulic couplings contribute to quieter operation, reducing noise levels in the machinery compared to some other coupling types.
Wide Range of Applications: Hydraulic couplings are suitable for a wide range of industrial applications, including heavy machinery, mining equipment, conveyors, pumps, and more. Their adaptability and robust performance make them a popular choice in various industries.

China factory Bucket Quick Coupling Hydraulic Multi Coupler for Mini Excavator
editor by CX 2024-02-09