The MSG series hydraulic swing motor integrates hydraulic motors, mechanical brakes, buffer valves, and flushing valves into a single unit, providing a complete rotary drive solution for heavy equipment applications.

• Features a fixed cam ring (stator) with multiple internal curves
• Plungers on the rotor extend under pressure oil, with rollers following curved tracks
• Generates rotational torque through track reverse force
• Multi-plunger design ensures smooth, high-torque output

• Normally closed multi-disc brake: spring-actuated with hydraulic release for safety
• Buffer valves at both ends absorb pressure peaks from starts, stops, and impacts
• Flush valve manages thermal control by exchanging hot leakage oil with cool oil

• Ultra-high starting efficiency exceeding 98% with massive starting torque
• Exceptional low-speed stability below 1 rpm without crawling
• Superior impact resistance for frequent start-stop operations
• High power density in compact dimensions saves installation space
• Extended service life through robust bearings and thermal management
• High structural rigidity withstands substantial radial and axial loads

• Excavators: 360° rotation of loading platforms
• Cranes: Truck, all-terrain, and crawler crane rotation systems
• Marine Engineering: Deck cranes, winches, propulsion mechanisms
• Mining Equipment: Underground loaders and mining machinery
• Other: Tunnel boring machines, radar antenna drives, heavy industrial equipment

Manufacturer Information

QUZHOU OUSTER HYDRAULIC Co., Ltd specializes in hydraulic pumps, motors, and components with over 13 years of export experience. Products include hydraulic pumps, motors, gearboxes, and valves exported to more than 68 countries worldwide.