Product Details

hydraulic pump for crane

Friendly for user hydraulic pump for crane

This 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 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 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