Ningbo Oushijie Hydraulic Transmission Co., Ltd. is one of the leading manufacturers and suppliers of nhm crankshaft-type radial piston hydraulic motor in China. We have world-leading production equipment and strong manufacturing capabilities. Welcome to wholesale bulk customized nhm crankshaft-type radial piston hydraulic motor from our factory.
NHM Series - Radial Piston Hydraulic Motor
The NHM series is a low-speed, high-torque hydraulic motor with crankshaft and connecting rod design. Its five-piston structure and low excitation frequency ensure quiet operation and stable low-speed performance. Advanced flow compensation and seals minimize leakage. Roller bearings support the crankshaft, enabling bi-directional rotation and radial/axial loads. Compact and high-power, it serves plastic, mining, hoisting, oil & gas, marine, and drilling-ideal for winches, drums, slewing drives, and tracks.
Features
Low noise operation -
The eccentric crankshaft and five-piston design with low excitation frequency significantly reduce operating noise.
High starting torque & excellent low-speed stability -
Delivers smooth, stable operation even at very low speeds.
High volumetric efficiency -
Compensated end-face flow distribution with advanced sealing rings between piston and cylinder bore minimizes internal leakage.
High mechanical efficiency -
Roller bearings between the crankshaft and connecting rod reduce friction losses.
Bi-directional rotation -
Reversible operation with the output shaft capable of withstanding radial and axial loads.
High power-to-mass ratio -
Compact and lightweight design delivers substantial power output.
FAQ
Q: What are common uses for NHM motors?
A: Used in plastic machines, mining equipment, cranes, ship deck gear, drills, and metalworking tools.
Q: Why are NHM motors good for slow speeds?
A: They start with strong power and run smoothly at low speeds.
Q: Can NHM motors operate in both directions?
A: Yes, NHM series motors support bi-directional rotation.
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