MS11-2-127-R11-1212-5EJ0 Poclain Radial Piston Hydraulic Motor 450bar

Product Overview

The MS11-2-127-R11-1212-5EJ0 is a radial piston hydraulic motor from the Poclain MS11 series, engineered as a low-speed high-torque (LSHT) direct-drive hydraulic motor. Featuring a proven radial piston cam-lobe design, this motor delivers displacements from 730 to 1687 cc/rev and operates at pressures up to 450 bar.

The MS11 series represents the classic multipurpose line within Poclain’s hydraulic motor portfolio, recognized for its modular design and exceptional reliability across construction equipment, material handling, agricultural machinery, mining, rail, and marine applications. Together with the MSE11 HighFlow™ series, the MS11 series forms the core of Poclain’s mid-displacement product offering.

Designed as a 100% interchangeable direct replacement for the original Poclain MS11-2-127-R11-1212-5EJ0, this product matches OEM specifications in mounting dimensions, porting interfaces, and performance characteristics. Every unit undergoes 100% simulated duty cycle testing prior to shipment, validating volumetric efficiency, mechanical efficiency, and sealing integrity under actual operating load conditions.

Technical Specifications 

• Model: MS11-2-127-R11-1212-5EJ0

• Series: Poclain MS11 Multipurpose Radial Piston Motor

• Displacement (Full): 1259 cm³/rev

• Displacement (Semi): 629.5 cm³/rev

• Displacement Range: 730 – 1687 cm³/rev

• Max Working Pressure: 450 bar / 6527 PSI

• Rated Working Pressure: 400 bar / 5800 PSI

• Max Power Output: 50 kW / 67 HP

• Max Torque: 10700 N.m / 7891 lb-ft

• Max Speed (Full Displacement): 180 RPM

• Max Speed (Semi Displacement): 200 RPM

• Control Type: 2 Displacements (2C)

• Motor Type: Wheel Motor / Shaft Motor

• Brake Options: Service Brake / Parking Brake

• Anti-Skid: TwinLock™ (optional)

• Mounting Interface: 100% interchangeable with original Poclain MS11

Key Technical Advantages

1. High-Displacement Radial Piston Design for Extreme Torque Output

The MS11 series employs a proven radial piston cam-lobe architecture with displacements ranging from 730 to 1687 cc/rev, delivering up to 10,700 N.m of maximum torque at 450 bar operating pressure. This makes it the ideal choice for wheel motor and tool drive applications in heavy machinery.

2. Dual Displacement Multi-Speed Control for Optimized Efficiency

Supporting dual displacement (2C) control, this motor enables seamless switching between full displacement (1259 cc/rev) and semi-displacement (629.5 cc/rev) settings. Maximum speed reaches 180 RPM at full displacement and 200 RPM at semi-displacement. The multi-speed concept allows transition between low-speed high-torque and high-speed modes, significantly improving overall machine productivity.

3. 100% Interchangeability – Zero-Modification Drop-In Replacement

Manufactured to exact OEM mounting dimensions, porting specifications, and performance standards, this motor achieves 100% interchangeability with original Poclain MS11 units. No machine modifications are required—simply replace and resume operation, minimizing downtime and reducing maintenance costs.

4. 100% Simulated Duty Cycle Testing for Extreme Environment Reliability

Every motor undergoes 100% simulated duty cycle testing before shipment, validating performance under rated pressure (400 bar), peak pressure (450 bar), and maximum speed conditions—ensuring long-term reliability in demanding mobile and industrial applications.

5. Modular Design for Versatile Application Adaptation

The MS11 series features a highly modular architecture supporting both wheel motor and shaft motor mounting configurations, with optional service brakes, parking brakes, and TwinLock™ anti-skid systems. This flexibility enables rapid adaptation to construction equipment, material handling, agricultural machinery, mining equipment, rail systems, marine, and industrial applications.

6. Precision Machining and Premium Materials for Extended Service Life

Critical friction pairs are manufactured with precision grinding processes, complemented by high-capacity bearings and durable sealing elements, ensuring long-term reliability under high-load and high-impact conditions. Poclain radial piston motors are renowned for their extended service life in the most demanding operating environments.

Application Areas

• Construction Equipment: Wheel loaders, motor graders, roller drives

• Material Handling: Port cranes, forklifts, AGV drives

• Agricultural Machinery: Large self-propelled sprayers, harvester drives

• Mining Equipment: Underground LHDs, mining truck wheel drives

• Rail Equipment: Railway maintenance machinery hydraulic drives

• Marine Industry: Marine deck machinery hydraulic drives

• Environmental & Industrial: Municipal vehicles, industrial machinery

Expert Maintenance Tips

1. Mounting Orientation: When installing the motor, ensure the motor case drain port is positioned at the highest point to guarantee proper lubrication and air bleeding.

2. Pre-Installation Preparation: Before using the MS11 series motor, read and understand the complete Poclain Hydraulics instruction manual. For first commissioning, fill the motor housing with hydraulic fluid using a filling unit with filtration not less than 10 µm. Never operate the motor without fluid.

3. Bearing Support Selection: The MS11/MSE11 series offers multiple bearing support types (1110, 1210, 1310, 1610, 1710, 2210, 2250, etc.). Select the appropriate support configuration based on your specific application. Note that certain support types must not be assembled with an MSE hydrobase.

4. Seal Maintenance: For dual-displacement motors, always install new seals during reassembly. Use OEM-specification seal kits to ensure sealing performance and service life.

5. Brake System Maintenance: For motors equipped with brake options, regularly inspect brake pad wear through the inspection port.

6. Case Drain Pressure Monitoring: Regularly monitor case drain pressure to ensure it remains within design limits, preventing excessive housing pressure that could damage shaft seals.

7. Mounting Bolt Torque: Strictly follow the machine manufacturer’s recommended tightening torque. MS11 series mounting bolts should be torqued according to the specific support type and thread specification (M18×1.5, M20×1.5, M22×1.5, etc.).