Hydraulic motors can be widely used in the hydraulic transmission systems of various machinery such as mining construction machinery, lifting and transportation equipment, heavy metallurgical machinery, petroleum and coal mining machinery, ship deck machinery, machine tools, light industry, plastic machinery, geological drilling equipment, agricultural and forestry machinery, mineral machinery, construction equipment and workbenches, lawn mowers, special vehicles, fishing winches, tool machines, woodworking and sawing machines, rubber machinery, etc, Suitable for screw drive of injection molding machines, drive of lifting winches and drums, drive of various rotary mechanisms, and drive of track and wheel walking mechanisms.