Product Details

mini excavator hydraulic pump

product is 20 series hydraulic transmission system introduced form American company. It is closed

hydraulic system made up of axial hydraulic pump and motor. The pump is variable pump with charge

pump and the motor is fixed-displacement or variable-displacement motor with valve assy. The control

way of changing displacement includes MDC, HDC and EDC which can efficiently control the discharge,

direction and power of the output oil. The hydraulic transmission system made up of this series of pump

and motor has features of wide work range, reliable working state, easy operation and can be widely

used on the hydraulic apparatus of engineering machine, agricultural machine, mine machine, aviation

and transport machine.

Technical Parameters

Model	Max. Displacement(ml/r)	Torque at 10Mpa(N.m)	Out power(at 10Mpa 1500r/min)(kw)	Charge Pump Displacement(ml/r)	Max. Speed(r/min)
21	51.6	84.1	12.7	12.3 18.0	3000
22	69.8	114.2	17.2		3000
23	89.0	144.3	21.9		2800

Components Weight Chart

Model	Variable Pump	Variable Displacement Motor	Fixed Displacement Motor
21	53.52	58.51	34.47
22	61.24	66.23	39.92
23	78.47	83.46	47.17