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Roots Vacuum Pump for Vacuum Kneading

Min.Order Quantity: 1 Set/Sets Roots Vacuum Pump for Vacuum Kneading

Supply Ability: 400~700 Set/Sets per Month Roots Vacuum Pump for Vacuum Kneading

Payment Terms: L/C,T/T,


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ZJ mechanical booster pump, also known as roots pump, is a positive displacement pump.

It USES a pair of 8 shape of the same rotor, between the rotor in the pump housing there is a certain gap, with the same speed reverse rotation, play the role of inhalation and exhaust. The rotors are supported by rolling bearings in the pump end caps and rotate at high speed and are kept in fixed relative positions by a pair of timing gears. The end gap between the rotor and the end cover is fixed by the adjustable metal gasket between the bearing box and the fixed end cover to ensure the one-way expansion of the rotor when the temperature rises during operation.

Four inner seals in two end caps (also known as piston rings) prevent oil from entering the pump housing. The shaft seal at the front end cover, also known as the frame oil seal or shaft seal, prevents air leakage into the pump housing.

In order to reduce the pump temperature, all types of pumps (except the two smallest models) are equipped with gearbox cooler and front end cover cooler.

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Model Suction capacity         (L/S)

Limit vacuum

    (≤Pa) 

 Speed

  (rpm)

Motor Power

      (kw)

Inlet Dia.

   (mm)

Outlet Dia.

    (mm)

  Weight

    (Kg)

Recommended backing pump       model
   ZJ-70          70      6x10-2   2780         1.5     80       50     87  2X-8
  ZJB-70      5x10-2     100
  ZJ-150A          150      6x10-2   2900          3     100      100     198     2X-15
  ZJB-150      5x10-2     215
  ZJ-300          300      6x10-2   1450          4     150      150     490      2X-30A
  ZJB-300      5x10-2     480
  ZJ-600          600      6x10-2   2900         5.5     150      150     490       2X-70A
  ZJB-600      5x10-2     503
  ZJ-1200A         1200      6x10-2   1450          11     300      300    1550       2X-70A           (2sets)
  ZJB-1200      5x10-2     250      250    1580

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