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Internal Gear Pump
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Internal Gear Pump

  1. With radial and axial pressure compensation design, high efficiency, low noise.
  2. Medium flow design:continuous working pressure up to 240kg/cm².
  3. Low guanidine impact, stable pressur, ensure the stability of mechanical operation, long service life.
  4. Suitable for small and medium-size industrial machinery, energy saving and carbon reducing oil pump.

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Model：WNIP2 Unit 013 019 025 032
Displacement cm3/rev 13.3 19.3 25.2 32.5
Continuous working pressure bar 280 250 250 250
The highest pressure.Maximum 15% work cycle of 10 seconds bar 280 280 280
Instantaneous pressure bar 300 280 280 280
Normal speed rpm 80 - 3000 80 - 3000 80 - 3000 80 - 3000
The highest speed rpm 3000 3000 3000 3000
Viscosity range mm²/s 10-3000
Start the visosity mm²/s 2000
Maximum medium temperature °c 80
Minimum medium temperature °c -20
Maximum ambient temperature °c 80
Minimum ambient temperature °c -20
Maximum suction pressure(suction inlet) bar 2 bar absolute atmospheric pressure
Minimum suction pressure(suction inlet) bar 0.8 bar absolute atmospheric pressure（0.6 bar at the start）
Weight kg 4.7 5 5.3 6.1
Fliter grade 150 mesh； Class 20/18/15 due to IS04406
Model：WNIP3 Unit 010 013 019 025 032
Displacement cm3/rev 10.3 13.3 19.3 25.2 32.5
Continuous working pressure bar 280 280 250 250 250
The highest pressure.Maximum 15% work cycle of 10 seconds bar 300 300 280 280 280
Instantaneous pressure bar 300 300 280 280 280
Normal speed
 rpm 80 - 3000 80 - 3000 80 - 3000 80 - 3000 80 - 3000
The highest speed
 rpm 3000 3000 3000 3000 3000
Viscosity range mm²/s 10-3000
Start the visosity mm²/s 2000
Maximum medium temperature °c 80
Minimum medium temperature °c -20
Maximum ambient temperature °c 80
Minimum ambient temperature
 °c -20
Maximum suction pressure(suction inlet) bar 2 bar absolute atmospheric pressure
Minimum suction pressure(suction inlet)
 bar 0.8 bar absolute atmospheric pressure（0.6 bar at the start）
Weight kg 4.5 4.6 5.1 5.2 5.4
Fliter grade 150 mesh；Class 20/18/15 due to IS04406
Model：WINIP5 Unit 080 100 125
Displacement
 cm3 /rev 80.4

100.5 

125.6
Continuous working pressure
 bar 210 210  210
The highest pressure.Maximum 15% work cycle of 10 seconds bar 230  230 230
Instantaneous pressure bar 250 250 250
Normal speed
 rpm 80 - 2000 80 - 2000 80 - 2000
The highest speed
 rpm 2000 2000 2000
Viscosity range mm²/s 10-300
Start the visosity mm²/s 2000
Maximum medium temperature °c 80
Minimum medium temperature °c -20
Maximum ambient temperature °c 80
Minimum ambient temperature
 °c -20
Maximum suction pressure(suction inlet) bar 2 bar absolute atmospheric pressure
Minimum suction pressure(suction inlet) bar 0.8 bar absolute atmospheric pressure（0.6 bar at the start）
Weight kg 16.7 18.5 19
Fliter grade Class 20/18/15 due to IS04406

Model Dimension A (mm) Dimension B (mm) Dimension C (mm) Dimension D (mm) Dimension F (mm) Dimension G (mm) Dimension H (mm)
WMIP213  52  ∅40 M6*11 ∅20 ∅35 M6*11 ∅10
WMIP219 64 ∅55 M8*14 ∅26 ∅40 M8*14 ∅12
WMIP225 76 ∅55 M8*14 ∅26 ∅40 M8*14 ∅12


  1. Series definition
  2. Pump type
  3. Geometric displacement
  4. Shaft end code
APPLICATIONS
Injection Molding Machine
Injection Molding Machine
Sheet Metal Folding Machine
Sheet Metal Folding Machine
Engineering Industry
Engineering Industry
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