Oil-Free Air Roots Vacuum Pump for Chemical Industry


   Model Suction potential         (L/S)

Limit vacuum




Motor Power


Inlet Dia.


Outlet Dia.




Suggested backing pump       product
   ZJ-70          70      6×10-2   2780         one.5     eighty       fifty     87  2X-eight
  ZJB-70      5×10-2     one hundred
  ZJ-150A          150      6×10-two   2900          3     a hundred      100     198     2X-15
  ZJB-a hundred and fifty      5×10-two     215
  ZJ-300          300      6×10-2   1450          4     one hundred fifty      150     490      2X-30A
  ZJB-three hundred      5×10-2     480
  ZJ-600          600      6×10-2   2900         five.five     150      150     490       2X-70A
  ZJB-600      5×10-2     503
  ZJ-1200A         1200      6×10-2   1450          11     300      300    1550       2X-70A           (2sets)
  ZJB-1200      5×10-2     250      250    1580

JZB Roots vacuum pump

1. CZPT features and functioning theory of the pump:
Product ZJ Mechanical Booster Pump, also recognized as a Roots pump, is a volumetric pump.
It employs a pair of rotors, equivalent and in eight-figure with certain clearance in between them
in the pump housing, rotating at the exact same pace in reverse instructions to execute
purpose of suction and discharge of gas. The two rotors are supported by rolling bearings
in the conclude handles of the pump, rotating at high speed and are kept at a
mounted relative place by a pair of timing gears. The stop clearance among rotors and
stop addresses are fastened by adjustable metal shims in between the bearing housings and the
conclude include at the fastened conclude, which makes certain 1-route growth of the rotor when
temperature rises throughout its operation.
4 sets of interior seals (also identified as piston ring) in the two stop covers avoid lube oil
moving into into the pump housing. The shaft seal at the front-finish include, also named as
framework oil seal or shaft seal, helps prevent leakage of air into the pump housing.
In get to reduce temperature of the pump, all versions of pumps (assume the two
smallest models) are outfitted with a gearbox cooler and front-stop cover cooler.
Electricity is transmitted via a coupling or V-belt from the motor to the driving shaft of
the pump and then through synchronizing gears to the driven shaft

Product’s Software

 Merchandise Screen

Company Energy



one.Q:Are you a manufacturer or trading firm?

   A: We are a specialist vacuum pump producer with more than 32 12 months expertise. We have two factories now which cover a lot more than 33333 square meters,we have rich encounter in solid liquid industry , Welcome to visit our manufacturing unit at your time.
2.Q:Do you have minimal buy amount ask for?

   A: for CZPT we have no MOQ,but for complete set equipment of course 1 set is the bare minimum.

3.Q:Do you have certificates?

    A: Indeed, we have CE, ISO,SGS.and so on. certificates.

five.Q:How to pay out?

      A:T/T and Alibaba Payment is suitable.

six.Q:How to pack the items?

   A: We use normal export deal. If you have particular bundle demands, we will pack as you needed, but the expenses will be paid by customers.

seven.Q: What about your delivery time?
   A: It depends on your pump quantity. CZPTly 15 times after we obtain the prepayment. We will affirm you once again when we start off to generate.

eight.Q:How to install right after the products arriving spot?

   A: We will sent the operating instruction with goods to you.You should strictly comply with the recommendations for installation
nine.Q: How long does your item top quality guarantee previous?
   A: 12 months for all our items in opposition to any non-synthetic good quality difficulty given that the solution depart our manufacturing facility.

10.Q: What will you do with good quality criticism?

     A: We have a full established of microcomputer controlled tests system(All merchandise are topic to analyzed prior to shipping and delivery. No product that failed overall performance check leaves our manufacturing facility.

Oil-Free Air Roots Vacuum Pump for Chemical Industry