Mitsubishi MRH Series Motor | MRH-200 MRH-1500 MRH-4400 MRH-8600 | Radial Piston Motor | Heavy Duty Hydraulic Drive

MRH Series Heavy Duty Radial Piston Hydraulic Motors

Product Overview: The MRH Series is a premier line of radial piston hydraulic motors engineered for extreme mechanical loads and high-stability requirements. Utilizing a proven crankshaft and connecting rod architecture, the MRH series delivers massive starting torque and continuous power even at ultra-low speeds. This page features the complete spectrum: from compact units like MRH-200, MRH-500, and MRH-750, to mid-range models MRH-1350, MRH-1500, MRH-2200, and MRH-3150, and up to the ultra-heavy-duty workhorses MRH-4400, MRH-6200, and MRH-8600. These motors are the industry standard for injection molding screw drives, marine deck winches, mining crushers, TBM propulsion, and heavy-duty industrial mixers.

Key Technical Advantages:

• Superior Starting Torque Efficiency: Advanced hydrostatic balancing ensures peak efficiency during load startup, reducing energy consumption and system shock.

• High-Pressure Resilience: Specifically designed for high-pressure duty cycles, offering excellent rated and peak pressure performance for frequent overload conditions.

• Elite Low-Speed Smoothness: Maintains constant, pulse-free power output even at speeds as low as 1-5 RPM, ideal for precision-controlled industrial applications.

• Heavy-Duty Construction: Built with high-strength cast iron housings and reinforced crankshaft bearings to withstand massive radial forces and axial impacts, significantly extending service life.

• Global Reliability: Renowned for its simple, robust design and high part interchangeability, making it one of the most trusted brands worldwide.

• Target Applications: Plastics machinery (Injection molding), marine equipment (winches, cranes), construction machinery (pipe jacking, drilling), and metallurgical equipment.

Detailed Models & Displacement Specs:

• Core Series: Mitsubishi / Kyokuto MRH Radial Piston Series.

• Full Model List: * Small Range: MRH-200, MRH-500, MRH-750.

  • Mid-Range: MRH-1350, MRH-1500, MRH-2200, MRH-3150.

  • Heavy-Range: MRH-4400, MRH-6200, MRH-8600.

• Technical Parameters:

  • Displacement: Spanning from approx. 200cc/rev up to a massive 8600cc/rev.

  • Rated Torque: Delivers massive driving force reaching tens of thousands of Newton-meters depending on the model.

  • Sealing: Standard high-pressure seals compatible with various industrial hydraulic fluids.