HSM series hydraulic motor is a new type of product of our company,which is based on years practical experience.The design is improved in the foundation on the original technologies.HSM series has wide application range.It can be applied in the hydraulic transmission systems of various types of machinery in plastic

• As the piston and the tilt cylinder have no side force,the piston bottom is designed to be static pressure balance.The torsional force is transferring between the piston and the crankshaft through rolling bearing,so the friction loss during the transferring process of force is reduced.Therefore,HSM series hydraulic motor has such features as:very high mechanical efficiency and comparatively high startup torque(mechanical efficiency of over 0.92 during startup).
• The plane distributor(patented technology)is simple and reliable with perfect seal performance and almost no leakage.The plastic piston ring is used to seal between the piston and the tilt cylinder,so it has very high volumetric efficiency(can be as high as 0.98).