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Motor for HMC125

The HMC125 is a dual-displacement (dual-speed) radial piston hydraulic motor. A hydraulically controlled directional valve allows for on-the-fly switching between high and low displacement to meet the torque and speed requirements of varying operating conditions. This motor utilizes a hydrostatically balanced design, offering high mechanical and volumetric efficiency, smooth operation, and high starting torque, making it suitable for low-speed, high-torque applications.

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HMC125

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Product Introduction

HMC125 hydraulic motor, with its British precision manufacturing, excels in both high-pressure and heavy-load, high- and low-speed operating conditions, making it a benchmark for reliability and efficiency in the industrial drive sector.

Technical Parameters

Motor type Metric	Disp. Code	Disp. mL/r	Spec. Torque N.m/bar	SPEED		PRESSURE		OUTPUT POWER
Motor type Metric	Disp. Code	Disp. mL/r	Spec. Torque N.m/bar	Rated. Rpm	Max. rpm	Rated. bar	Max. bar	Rated. KW	Max. KW
C125	125	2048	28.00	190	225	210	275	117	140
	120	1966	26.57	200	235	210	275	117	140
	110	1800	24.04	215	255	210	275	114	136
	100	1639	21.63	235	280	210	275	112	134
	90	1475	19.23	260	310	210	275	110	132
	80	1311	16.88	290	345	210	275	108	129
	70	1147	14.59	330	390	210	275	106	127
	60	983	12.35	380	475	210	275	103	124
	50	820	10.17	400	500	210	275	89	107
	40	655	8.02	400	500	210	275	71	85
	30	492	5.95	400	500	210	275	52	63
	20	328	3.91	400	500	210	275	34	41
	10	164	1.93	400	500	210	275	17	20
	5	82	0	800	800	17	17	0	0
	0	0	0	1000	1000	17	17	0	0

Installation Dimensions

Installation Dimensions for HMC125.pdf

FAQ

FAQs

Is the installation dimension of your HMC125 hydraulic motor the same as the original motor from UK, and do any modifications need to be made during installation?

Our HMC125 hydraulic motors have identical mounting dimensions to those manufactured in the UK.

a. The flange, shaft extension, and port locations and dimensions are identical to those of the original UK motor, making them a direct replacement.
b. The mounting hole locations and bolt specifications match perfectly, eliminating the need for re-drilling or bracket modification.
c. The axial and radial dimensions are synchronized, ensuring no conflicts with the original system layout.
Are your HMC125 hydraulic motor parts interchangeable with those originating in the UK?

Yes, they can be used alternatively.
The parts of the HMC125 hydraulic motor are not only compatible with the original British STAFFA, but also the domestic supply chain has a mature supply chain that provides a full set of repair parts to support the replacement and repair of core components such as seals, plungers, and bearings.
How to quickly determine if there is a fault with the motor or the control valve group?

a、When lifting the load，If the motor is obviously not powerful enough and the pressure gauge shows that the pressure is not high， connect pressure gauges to ports A and B of the motor,it indicates that the pressure relief valve in the control valve is faulty, and it needs to eliminate fault of the pressure relief valve;
b、We need to exhaust the air of motor and pipeline have air, the operation of continuous multiple times of lifting and lowering under no-load condition and we also need to ensure the smooth and continuous oil supplement circuit at the motor inlet;
c、Motor is seriously damaged and needs to be repaired or replaced,because the abnormal loud noise or the temperature of the motor housing wall is significantly higher than the pipeline by more than 20℃ and the temperature is still rising.

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