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VCM - SM Variable Displacement Vane Pump

Variable Displacement Vane Pump - VCM-SM

Model Code: Design No. Pressure range, C:105 kgf/cm2, D:140 kgf/cm2, Displacement at 1800 rpm, 30L, 40L, Series No., Vane pump series

  1. High efficiency, High-pressure, operation.
  2. Extremely low vibration and noise level.
  3. Instant and sharp cut-off characteristics.
  4. Sturdy structure for high efficiency and long service life.
  5. Easy adjustment in handling and maintenance.
MODEL Delivery At No load
( L/min)
Pressure Adj Range
(kgf/cm2)
Shaft Speed
Range (rpm)
Max Pressure
(kgf/cm2)
Weight
(Kg)
1800rpm 1500rpm Max. Min.
SM-30A 30 25 15 - 35 1800 800 35 9.7
SM-30B 20 - 70 70 9.7
SM-30C 50 - 105 105 9.7
SM-30D 70 - 140 140 9.7
SM-40A 40 35 15 - 35 1800 800 35 9.7
SM-40B 20 - 70 70 9.7

Performance Curves

Performance Curves - VCM-SM

  1. The rotation of VCM-SM pump is clockwise when viewed from the shaft end.
  2. The drain pipe is directly connected to the oil tank and the position must be below the level of oil.
  3. Keep the suction pressure within -0.3 kgf/ cm² at the suction port.
  4. Pressure adjusting screw is turned clockwise to increase pressure and Counterclockwise to decrease pressure.
  5. Flow adjusting screw is turned clockwise to increase flow and counterclockwise to decrease flow.
  6. For proper alignment of pump and electric motor shaft, the eccentricity between them must be kept within 0.05mm and the eccentric angle error between them must be kept within 1°.
  7. When pressure is under 70 kgf/cm² the viscosity of oil must be within 30 50 cSt, when pressure is over 70 kgf/cm² the viscosity of oil must be within 50-70 cSt, at the temperature of 40 °C.
  8. When first time operation, the pump should be at no-load state-on delivery side and be repeated on and off the electric motor a number of times to make sure the air have been bled out of the system.