YHM3-175 LSHT Motor | MR700F MR1100G Radial Piston Motor | High Torque Hydraulic Oil Motor

YHM3-175 & MR Series Heavy-Duty LSHT Radial Piston Hydraulic Motors

Product Overview: The YHM3 Series (including YHM3-175) and MR Series (such as MR700F and MR1100G) are premier crankshaft-connecting rod type radial piston motors. Renowned for their exceptional Low Speed High Torque (LSHT) performance, these motors deliver smooth and massive power output even at ultra-low speeds. Engineered with a robust architecture, they are the ideal choice for high-end replacements in demanding environments. This series is widely utilized in marine deck machinery, injection molding machines, mining crushers, heavy-duty winches, and TBM cutterhead drives.

Key Technical Advantages:

• Ultimate Torque Delivery: The crankshaft technology significantly reduces friction losses, ensuring high starting torque and superior mechanical efficiency at low speeds.

• Ultra-Low Speed Stability: These motors maintain smooth operation as low as 1 rpm without “crawling,” ensuring precise control over heavy loads.

• High-Pressure Resilience & Durability: Constructed with high-strength cast iron and specialized hardening on moving parts, supporting rated pressures of 25-31.5 MPa.

• Technical Interchangeability: Models like MR700F and MR1100G are highly standardized in mounting dimensions and performance, allowing for seamless direct replacement and system upgrades.

• Target Applications: Fishing boat net haulers, port cranes, injection molding screw drives, construction drill rigs, and scrap balers.

Detailed Models & Parameters:

• Model List:

  • YHM3-175: Compact high-torque specification, ideal for small-to-medium industrial drives.

  • MR700F: Classic 700-class displacement, renowned for stability and reliability.

  • MR1100G: High-displacement heavy-duty spec, delivering massive single-unit torque output.

• Core Performance Specs:

  • Displacement Range: 175 ml/r to 1100 ml/r.

  • Rated Pressure: 20 – 25 MPa.

  • Peak Pressure: Up to 31.5 MPa.

  • Speed Range: 1 – 400 rpm (depending on displacement).