Limit vacuum   (≤Pa)  Speed  (rpm) Motor Power    (kw) Inlet Dia.   (mm) Outlet Dia.   (mm) Weight   (Kg) Packaging: Standard export polywooden cases. Customized packaging can be available. Pre-Sales Service Provide 24-hour reply. Provide suitable models according to clients' requirements. Provide detailed product specifications and reasonal prices. Supervise whole production time. Provide product's testing performance curve to customers. Provide inspection pictures to customers after we finish production. Provide installation manual. Under correct installation, normal maintenance and using,we guarantee one-year warranty. If product has malfunction,we'll reply you within 24 hour and provide solution or even send technical staff to spot after receiving maintenance notification. 1.  Q: Are you a manufacturer or trading company?   A: We are manufacturer of vacuum pumps and water pumps in China since 1986. 2.  Q: What's your MOQ?     A: One set is ok. 3.  Q: What's your payments terms?     A: T/T, Western Union...... 4.  Q: What certificates do you have?     A: CE, ISO 9001 .... 5.  Q: How about the warranty?     A: 12 months warranty since delivery. 6.  Q: What's the delivery time?     A: For different models,different motor specs and different material,delivery time is different,please double confirm with our sales team. 7.  Q: Can you do OEM brand?     A: Yes, welcome. 8.  Q: Quality reliable?     A: We have whole testing system controlled by micro-machine,testing performance curve can be sent to clients before arrange delivery. Limit vacuum   (≤Pa)  Speed  (rpm) Motor Power    (kw) Inlet Dia.   (mm) Outlet Dia.   (mm) Weight   (Kg) Packaging: Standard export polywooden cases. Customized packaging can be available. Pre-Sales Service Provide 24-hour reply. Provide suitable models according to clients' requirements. Provide detailed product specifications and reasonal prices. Supervise whole production time. Provide product's testing performance curve to customers. Provide inspection pictures to customers after we finish production. Provide installation manual. Under correct installation, normal maintenance and using,we guarantee one-year warranty. If product has malfunction,we'll reply you within 24 hour and provide solution or even send technical staff to spot after receiving maintenance notification. 1.  Q: Are you a manufacturer or trading company?   A: We are manufacturer of vacuum pumps and water pumps in China since 1986. 2.  Q: What's your MOQ?     A: One set is ok. 3.  Q: What's your payments terms?     A: T/T, Western Union...... 4.  Q: What certificates do you have?     A: CE, ISO 9001 .... 5.  Q: How about the warranty?     A: 12 months warranty since delivery. 6.  Q: What's the delivery time?     A: For different models,different motor specs and different material,delivery time is different,please double confirm with our sales team. 7.  Q: Can you do OEM brand?     A: Yes, welcome. 8.  Q: Quality reliable?     A: We have whole testing system controlled by micro-machine,testing performance curve can be sent to clients before arrange delivery. A manual chain block (also known as a hand chain Hoist) is a mechanism used to lift and lower heavy loads using a chain. Manual chain blocks contain two wheels which the chain is wound around. When the chain is pulled, it winds around the wheels and begins to lift the item that is attached to the rope or chain via a hook.Manual chain blocks lift and maneuver heavy loads short distances without the need for power, it is hand operated. The manual chain block is suitable for lifting relatively light objects and relatively short distance. Manual Chain Block,Manual Chain Hoist,Manual Hoist,Hand Chain Block,Hand Chain Hoist Eurocrane (China) Co., Ltd. , https://www.overhead-crane.com
Model ZJ Mechanical Booster Pump, also known as a Roots pump, is a volumetric pump.
It employs a pair of rotors, identical and in 8-figure with certain clearance between them
in the pump housing, rotating at the same speed in opposite directions to perform
function of suction and discharge of gas. The two rotors are supported by rolling bearings
in the end covers of the pump, rotating at high speed and are kept at a
fixed relative position by a pair of timing gears. The end clearance between rotors and
end covers are fixed by adjustable metal shims between the bearing housings and the
end cover at the fixed end, which ensures one-direction expansion of the rotor when
temperature rises during its operation.
Four sets of inner seals (also known as piston ring) in the two end covers prevent lube oil
entering into the pump housing. The shaft seal at the front-end cover, also called as
framework oil seal or shaft seal, prevents leakage of air into the pump housing.
In order to reduce temperature of the pump, all models of pumps (expect the two
smallest models) are equipped with a gearbox cooler and front-end cover cooler.
Power is transmitted through a coupling or V-belt from the motor to the driving shaft of
the pump and then through synchronizing gears to the driven shaft
Specifications:
  Model
Suction capacity     (L/S)
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
Applications:
The main advantage of Roots vacuum pump is that it can operate with high pumping speed under lower suction pressures, however, has to be backed by a backing pump.Under normal working conditions, it is permissible to not add by-pass pipes.Roots vacuum pump should not operate with a higher-pressure difference than allowable,otherwise overheating  and  overload will  cause damage  of Roots  vacuum pump.
Therefore, proper backing pump and necessary protection devices must be considered.Oil sealed mechanical pump is usually selected as  the fore  vacuum  pump. Other  types  of backing  pumps  may  be  used  where   their requirement for ultimate vacuum is not too strict. Particularly, when gas pumped containing large amount of vapor, water-ring vacuum pump maybe  an ideal  option though  ultimate vacuum achieved is on the low side.
Product display:
Shipping:
Shipping method
Note
Express
Door to door, very convenient, don't need customs clearance or pick-up.
By air
Airport to airport, you need to do the customs clearance and pick up the goods at your local airport.
By sea
Port to port and you need to do the customs clearance and pick-up the goods at your local port.
Our services:
In-Sales Service
After-Sales Service
FAQ:
Â
Established in 1986, our company has been focusing on the development and manufacture of vacuum pumps and water pumps.We are a comprehensive pump company integrating production, sales and after-sales maintenance services.
The main products include liquid ring vacuum pumps;rotary vane vacuum pumps;roots vacuum pump;centrifugal water pump and customized vacuum pump system,which are widely used in all kinds of plastic extrusion line;medical and pharmaceutical industry(autoclave sterilizer/capsule filling and sealing machine);food-related industry(beverage machine/milking machine/sugar plant);chemical industry;power plant;coal mine etc.
Contact us:
Â
Pump description:
Model ZJ Mechanical Booster Pump, also known as a Roots pump, is a volumetric pump.
It employs a pair of rotors, identical and in 8-figure with certain clearance between them
in the pump housing, rotating at the same speed in opposite directions to perform
function of suction and discharge of gas. The two rotors are supported by rolling bearings
in the end covers of the pump, rotating at high speed and are kept at a
fixed relative position by a pair of timing gears. The end clearance between rotors and
end covers are fixed by adjustable metal shims between the bearing housings and the
end cover at the fixed end, which ensures one-direction expansion of the rotor when
temperature rises during its operation.
Four sets of inner seals (also known as piston ring) in the two end covers prevent lube oil
entering into the pump housing. The shaft seal at the front-end cover, also called as
framework oil seal or shaft seal, prevents leakage of air into the pump housing.
In order to reduce temperature of the pump, all models of pumps (expect the two
smallest models) are equipped with a gearbox cooler and front-end cover cooler.
Power is transmitted through a coupling or V-belt from the motor to the driving shaft of
the pump and then through synchronizing gears to the driven shaft
Specifications:
  Model
Suction capacity     (L/S)
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
Applications:
The main advantage of Roots vacuum pump is that it can operate with high pumping speed under lower suction pressures, however, has to be backed by a backing pump.Under normal working conditions, it is permissible to not add by-pass pipes.Roots vacuum pump should not operate with a higher-pressure difference than allowable,otherwise overheating  and  overload will  cause damage  of Roots  vacuum pump.
Therefore, proper backing pump and necessary protection devices must be considered.Oil sealed mechanical pump is usually selected as  the fore  vacuum  pump. Other  types  of backing  pumps  may  be  used  where   their requirement for ultimate vacuum is not too strict. Particularly, when gas pumped containing large amount of vapor, water-ring vacuum pump maybe  an ideal  option though  ultimate vacuum achieved is on the low side.
Product display:
Shipping:
Shipping method
Note
Express
Door to door, very convenient, don't need customs clearance or pick-up.
By air
Airport to airport, you need to do the customs clearance and pick up the goods at your local airport.
By sea
Port to port and you need to do the customs clearance and pick-up the goods at your local port.
Our services:
In-Sales Service
After-Sales Service
FAQ:
Â
Established in 1986, our company has been focusing on the development and manufacture of vacuum pumps and water pumps.We are a comprehensive pump company integrating production, sales and after-sales maintenance services.
The main products include liquid ring vacuum pumps;rotary vane vacuum pumps;roots vacuum pump;centrifugal water pump and customized vacuum pump system,which are widely used in all kinds of plastic extrusion line;medical and pharmaceutical industry(autoclave sterilizer/capsule filling and sealing machine);food-related industry(beverage machine/milking machine/sugar plant);chemical industry;power plant;coal mine etc.
Contact us:
Â
2HP Roots Booster Vacuum Pump
Model NO.: ZJB
Application: Metallurgy, Chemical, Food, Electronic Coating
Recommended Pre-Pump: 2X-8
Net Weight: 100 Kg
Warranty: One Year
Voltage: 220V/380V/415V/Customized
Frequency: 50Hz/60Hz
Trademark: YHZKB
Transport Package: Polywooden Cases
Specification: 1.5KW; 70L/S; 5*10^-2 Pa
Origin: Anhui
HS Code: 84141000
Model NO.: ZJB
Application: Metallurgy, Chemical, Food, Electronic Coating
Recommended Pre-Pump: 2X-8
Net Weight: 100 Kg
Warranty: One Year
Voltage: 220V/380V/415V/Customized
Frequency: 50Hz/60Hz
Trademark: YHZKB
Transport Package: Polywooden Cases
Specification: 1.5KW; 70L/S; 5*10^-2 Pa
Origin: Anhui
HS Code: 84141000
Pump description: