GM Swing-cylinder Type Radial Piston Hydraulic Motor

The OGM series is a low-speed high-torque radial piston motor designed with a unique piston-and-swing-cylinder configuration. Unlike conventional designs, the piston foot is hydrostatically balanced and torque is transmitted through roller bearings - eliminating side forces and minimizing friction losses. The patented flat distributor and plastic piston seals deliver very high volumetric efficiency with almost zero internal leakage. The motor offers excellent low-speed stability and a wide speed regulation range. It also supports pump-mode operation and freewheel rotation when the inlet port is closed. With compact dimensions and high-pressure capability, the GM series is widely used in plastic machinery, metallurgy, mining, hoisting equipment, marine deck machinery, and geological drilling - particularly for winch drums, hoisting drives, and wheel or track propulsion.