Poclain MS MSE Series Hydraulic Motor | MS02 MS05 MS08 MSE11 Radial Piston Motor | High Torque LSHT

The MS and MSE Series radial piston motors from Chengyuan Hydraulic are high-performance low-speed high-torque (LSHT) drive units fully compatible with Poclain engineering standards. These motors utilize an advanced multi-cam design to deliver exceptional power density. For specific codes such as MS05-9-G24 (featuring a 9-lobe cam) and MSE11-1-D11, we maintain rigorous control over the matching hardness of the pistons, rollers, and stator profiles. Every motor undergoes 100% simulated full-load condition testing prior to delivery to ensure that startup torque and volumetric efficiency under extreme pressure match OEM standards, guaranteeing 100% original-place interchangeability.

Technical Specifications :

• Model Codes: MS05-9-G24-F04-1710-257EJM, MSE11-1-D11-R11-0000-5D00

• Displacement (MS05): 260 cm³/rev to 750 cm³/rev

• Displacement (MSE11): 700 cm³/rev to 1400 cm³/rev

• Rated Pressure: 250 bar (25 MPa)

• Peak Pressure: 450 bar (45 MPa)

• Max Output Torque (MSE11): Up to 6000 Nm

• Maximum Speed: 100 – 300 rpm (depending on displacement)

• Braking Torque (F-Option): Up to 4200 Nm (multi-disc hydraulic brake)

• Fluid Compatibility: Mineral Oil HLP/HVLP (ISO 4406 18/16/13)

Key Technical Advantages:

• Balanced Radial Piston Mechanics: Due to the symmetrical distribution of the radial pistons, internal forces are completely balanced. This significantly reduces radial loads on the main bearings and ensures smooth, creep-free torque even at ultra-low speeds (< 1 rpm).

• Optimized Stator Cam Profile: The stator profile is ground to micron-level precision and undergoes vacuum heat treatment. This ensures uniform contact stress between the rollers and the cam during high-speed transitions, greatly extending fatigue life under frequent reversal conditions.

• Integrated Modular Design: The motor housing supports integrated multi-disc hydraulic brakes (e.g., F04 specs) and two-speed control valving. This highly integrated design simplifies vehicle drivetrain layout and enhances overall system reliability.

• 100% Heavy-Duty Simulation: Chengyuan has established a comprehensive testing protocol to simulate extreme machine states, such as full-load climbing and emergency steering, verifying sealing integrity for models like MSE11 under severe pressure fluctuations.

Application Areas:

• Construction: Travel drives for road rollers, rotary drilling rigs, and asphalt pavers.

• Material Handling: Wheel motors for forklifts and container reach stackers.

• Mining: Power for underground transport vehicles and auxiliary drives for TBMs (Tunnel Boring Machines).

Expert Maintenance Tips:

• Case Drain Management: MS/MSE motors must have a dedicated case drain line. Ensure case pressure remains below 2 bar; excessive pressure will lead to immediate shaft seal failure.

• Pre-start Lubrication: Before the first run or after long-term storage, the motor case must be filled with clean hydraulic oil through the drain port to lubricate the internal moving parts.

• High-Precision Filtration: Radial piston motors are sensitive to particulates. We recommend a filtration rating of 10μm or better to prevent premature scoring of the stator cam profile.