MS11-0-14A-F12-2A11-5FHM0 Poclain Hydraulic Motor | 1048cc LSHT Radial Piston

Product Overview

The MS11-0-14A-F12-2A11-5FHM0 is a low-speed high-torque radial piston hydraulic motor built on the Poclain MS/MSE11 modular platform, featuring a dual-displacement configuration within the MS11-0 displacement size. The motor delivers a full displacement of 1,048 cc/rev and a half displacement of 524 cc/rev, with a rated pressure of 25 MPa, a peak pressure up to 450 bar, a maximum output torque of 10,700 N·m, and a maximum speed of 200 rpm. The MS/MSE11 series direct-drive motor delivers up to 50 kW, suitable for wheel motor or tool drive applications, with displacement ranging from 730 to 1,687 cc/rev.

Engineered as a form-fit-function replacement for original Poclain motors, this model maintains identical mounting flange dimensions (standard 2A50 shaft motor or 1110 wheel motor), shaft specifications, and port configurations, enabling drop-in interchangeability without modification to the host machine’s mounting interface or hydraulic circuit. The motor employs a multi-piston radial layout with roller-type force transmission, ensuring stable torque delivery under low-speed heavy-load conditions.

Technical Specifications (Bulleted List)

• Model: MS11-0-14A-F12-2A11-5FHM0

• Series: Poclain MS/MSE11 modular hydraulic motor

• Motor Type: Low-speed high-torque radial piston motor (LSHT)

• Full Displacement: 1,048 cc/rev (63.9 cu.in/rev)

• Half Displacement: 524 cc/rev (32.0 cu.in/rev)

• Displacement Ratio: 2:1 (dual-displacement switching)

• Rated Pressure: 25 MPa (3,625 PSI)

• Peak Pressure: 450 bar (6,527 PSI)

• Maximum Output Torque: 10,700 N·m (7,891 lb-ft)

• Maximum Power: 50 kW (67 HP)

• Maximum Speed: 200 rpm

• Rated Speed: 65 rpm

• Control Method: Dual-displacement (valve-controlled full/half displacement)

• Motor Configuration: Shaft motor (standard 2A50) / Wheel motor (standard 1110)

• Brake Options: Service brake / Parking brake

• Special Option: Twin-Lock™ anti-skid system

• Rotation: Bi-directional

Key Technical Advantages

1. Modular Platform with Precision Radial Piston Pair

The MS/MSE11 series employs a modular architecture comprising torque module, bearing support module, valving module, and brake module, with standardized interfaces between modules. The radial piston pair utilizes precision-controlled clearances combined with a roller-type force transmission mechanism to minimize friction losses, ensuring high volumetric efficiency across the full pressure range. The MS series radial piston cam design, which is continually being improved, delivers high efficiency at any speed or operating pressure, making a major contribution to machine energy efficiency.

2. Dual-Displacement Switching for Multi-Speed Drive

An integrated dual-displacement control valve enables switching between 1,048 cc/rev full displacement and 524 cc/rev half displacement via an external pilot pressure signal. Full-displacement mode delivers maximum torque for heavy-load starting and climbing conditions; switching to half displacement doubles the output speed for no-load fast travel. The mechanism allows displacement changes without motor disassembly, enhancing overall machine adaptability.

3. Form-Fit-Function Interchangeability

Mounting flange dimensions, shaft extension, port locations, and connection threads are identical to original Poclain MS11-0 series motors, allowing drop-in replacement using existing mounting brackets and hydraulic lines. The modular design enables adaptation to either shaft motor or wheel motor configuration by simply changing the bearing support module.

4. High Load Capacity with Extended Maintenance Intervals

The bearing support module accommodates combined radial and axial loads, suitable for direct-load wheel drive applications. The optimized design, resulting from thousands of hours of development and testing, allows the motor to withstand extreme operating conditions with very low maintenance requirements, reducing machine downtime. An optional Twin-Lock™ anti-skid system provides additional traction control for wheel drive applications.

Application Areas

• Construction Machinery: Excavator travel drive, skid steer loader wheel drive, motor grader wheel drive, cold planers

• Mining Equipment: Coal mine drills, heavy-duty handling vehicles, scraper conveyor drives

• Agricultural Machinery: Combine harvester travel drives, self-propelled sprayers, cotton pickers

• Material Handling: Forklift drives, aerial work platforms, conveyor drives

• Municipal Equipment: Road sweepers, refuse compactors

• Marine & Rail: Deck machinery, railway maintenance equipment

Expert Maintenance Tips

1. During installation, ensure the coaxiality deviation between the motor shaft and coupling does not exceed 0.05 mm to prevent premature shaft seal wear from excessive radial forces.

2. The drain port must be connected separately to the reservoir with back pressure not exceeding 0.5 MPa; higher back pressure will damage the shaft seal and deform the housing.

3. Maintain hydraulic fluid cleanliness at ISO 18/15 or NAS Level 9 or better; replace hydraulic fluid and filter elements every 1,000 operating hours or annually.

4. Periodically verify the dual-displacement switching valve response pressure. Conduct switching tests using 3–5 MPa pilot pressure to ensure crisp, non-sticking actuation.