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VCM-SF-CG Hydraulic Pumps

Variable displacement vane pump with Cooling circulation pump - VCM-SF-CG

How to order - Design Nr : 20:12,20L, 30: 30, 40L, Cooling circulation pump type: 4CG (4L/min), 8CG (8L/min), Pressure ranges: A: 20 kgf/cm2 / C: 55 kgf/cm2 / B: 35 kgf/cm2 / D: 70 kgf/cm2, Displacement: 12L, 20L, 30L, 40L, Variable Displacement Vane Pump Series

  1. Unique and patented attachment design, it reduces overall length and dimension after attached to a variable displacement vane pump, the entire combination became more compact. This cooling circulation pump intake oil from oil reservoir, deliver to cooling system. It effectively reduced oil temperature under continuous process of circulation.
  2. Cooling circulation pump has build-in pressure setting, maintaining pressure at 3kg/cm2, protect pipe line of cooling system.
  3. Rapid testes proven, to combine with proper cooler, it performed better cooling efficiency then cooling variable vane pump's drain by far.
  4. By reducing size of reservoir, it could save space and volume of hydraulic oil. At the end, it saved cost.

Variable displacement vane pump

Model Delivery at no load L/min Pressure Adj
Range
kgf/cm²
Shaft Speed
rpm
Max Pressure
kgf/cm²
Weight
Kg(lb)
1800rpm 1500rpm Max Min Flange
SF-12A 12 10 10 - 20 1800 800 20 5.0
SF-12B 15 - 35 35 5.0
SF-12C 30 - 55 55 5.0
SF-12D 50 - 70 70 5.0
SF-20A 20 17 10 - 20 1800 800 20 5.0
SF-20B 15 - 35 35 5.0
SF-20C 30 - 55 55 5.0
SF-20D 50 - 70 70 5.0
SF-30A 30 25 10 - 20 1800 800 20 9.0
SF-30B 15 - 35 35 9.0
SF-30C 30 - 55 55 9.0
SF-30D 50 - 70 70 9.0
SF-40A 40 35 10 - 20 1800 800 20 9.0
SF-40B 15 - 35 35 9.0
SF-40C 30 - 55 55 9.0
SF-40D 50 - 70 70 9.0


Cooling circulation pump

Model Delivery at no load L/min Pressure Adj Range
kgf/cm²
Shaft Speed
rpm
1800rpm 1500rpm Max Min
4CG 4 3 3 1800 800
8CG 8 6 3 1800 800
VCM-SF-20※-40CG-20
Testing condition :
Hydraulic oil : ISO VG32
Speed : 1800rpm
Capacity of tank : 30L
Ambient Temperature : 30°C

Performance Curves-1

VCM-SF-30※-4CG-30
Testing condition :
Hydraulic oil : ISO VG32
Speed : 1800rpm
Capacity of tank : 40L
Ambient Temperature: 30°C
Performance Curves-2

Measurement -VCM-SF-12,20※-※CG-20, VCM-SF-30,40※-※CG-30

Measurement - VCM-SF-12,20※-※CG-20

Number Descriptionen Parts Q'ty
1   Body 1
2   Back cover 1
3   Cover 1
3.1   Cooling circulation pump cover 1
4   Rotor 1
4.1   Gerotor (inner rotor) 1
4.2   Gerotor (outer rotor) 1
5   Cam-ring 1
6   Vane 13
7   Key 1
7.1   Pin 1
8   Front plate 1
9   Rear plate 1
10   Spring 1
10.1   Spring 1
11   Socket screw 1
11.1   Screw 1
12   Screw nut 1
13   Piston 1
14   Piston 1
Number Descriptionen Parts Q'ty
15   Plug 1
16   Spring seat 1
17 M6x20 Hexagon head screw 2
18 M8x25 Hexagon head screw 2
19 M8x30 Hexagon head screw 4
20 M10x35 Hexagon bolt 1
21 M10x8Hx17 Hexagon bolt 1
22 4x8 Pin 5
23 10x8.5x5 Bushing 2
24 R-32 C-ring 1
25 P12 O-ring 2
26 12x2 O-ring 1
27 P20 O-ring 1
28 S26 O-ring 1
29 S45 O-ring 2
30 S71 O-ring 1
31 TCV163210 Seal 1
32 DD1615 Bushing 1
33 DD1620 Bushing 1
34 8mm Ball 1


Measurement - VCM-SF-30,40※-※CG-30

Number Descriptioen Parts Q'ty
1   Body 1
2   Back cover 1
3   Cover 1
3.1   Cooling circulation pump cover 1
4   Rotor 1
4.1   Gerotor (inner rotor) 1
4.2   Gerotor (outer rotor) 1
5   Cam-ring 1
6   Vane 13
7   Key 1
7.1   Pin 1
8   Front plate 1
9   Rear plate 1
10   Spring 1
10.1   Spring 1
11   Screw 1
11.1   Screw 1
12   Screw bolt 1
13   Screw bolt 1
14   Piston 1
15   Piston 1
16   Piston 1
17   Piston 1
18   Washer 1
Number Descriptioen Parts Q'ty
19   Plug 1
20 M6x20 Spring seat 1
21 M8x25 Hexagon head screw 4
22 M12x25 Hexagon head screw 7
23 M12x8Hx1.25x17 Hexagon bolt 1
24 M12x7Hx1.75.19 Hexagon bolt 1
25 M16x8Hx1.0x24 Hexagon bolt 1
26 10x8.5x5 Hexagon bolt 1
27 4x8 Bushing 2
28 4.8 Pin 2
29 R-42 Pin 3
30 P5 C-ring 1
31 P12 O-ring 1
32 12x2 O-ring 1
33 P14 O-ring 1
34 P20 O-ring 2
35 S40 O-ring 1
36 S45 O-ring 1
37 S60 O-ring 1
38 S85 O-ring 1
39 TCV224211 O-ring 1
40 DD2225 Seal 1
41 8mm Bushing 1
42 8mm Ball 1
  1. The rotation of VCM-DF pump is clockwise when viewed from the shaft end.
  2. The drain pipe is directly connected to the oil tand and the position must be below the level of oil.
  3. Keep the suction pressure within 0.3 bar 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 bar the viscosity of oil must be within 30-50 cSt, when pressure is over 70 bar 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 motot a number of times to make sure the air have been bled out of the system.