Product Overview
The MSE05-1-G14-A05-2A50-5E00 is a single-speed full-displacement radial piston hydraulic motor from Poclain Hydraulics’ MS/MSE05 series, featuring a displacement of 514 ml/r. As an MSE-series (E-version) motor, it delivers a maximum working pressure of 400 bar and a rated torque of 1,921 N·m, making it ideal for wheel-drive or tool-drive applications requiring high torque at low speed.
The MS/MSE05 series is the mid-frame offering in Poclain’s multi-purpose motor line, covering displacements from 260 to 750 cc/rev with up to 50 kW of power and 4,770 N·m maximum torque. The modular design concept allows a single base motor to be configured with different displacement groups, flow-distribution modules, brake modules and output-end modules for wheel-drive or shaft-drive installation. Primary applications include construction equipment, material handling, agriculture, environment, mining, rail, marine and industry.
The model code breaks down as follows: MSE05 identifies the series and frame size (E-version, 400 bar maximum working pressure); 1 denotes the displacement group (514 ml/r full displacement); G14 is the flow-distribution/function module (G-series single-speed full-displacement configuration); A05 is the shaft/output-end configuration; 2A50 is the mounting flange and shaft type; 5E00 denotes additional options.
Every unit undergoes 100% simulated operating-condition bench testing prior to shipment. Mounting flange, shaft end and port dimensions match the original Poclain MSE05 series exactly, enabling true drop-in interchangeability with zero modification required.
Technical Specifications
MS05/MSE05 Series Frame Size Specifications:
MS05-8 (Single/Dual Displacement): Full displacement 376 ml/r, half displacement 188 ml/r, max power 25 kW, theoretical torque at 10 MPa 562 N·m, rated torque 1,405 N·m, rated pressure 25 MPa, max pressure 40 MPa, rated speed 90 rpm, speed range 0–200 rpm
MS05-0 (Single/Dual Displacement): Full displacement 468 ml/r, half displacement 234 ml/r, max power 25 kW, theoretical torque at 10 MPa 699 N·m, rated torque 1,749 N·m, rated pressure 25 MPa, max pressure 40 MPa, rated speed 90 rpm, speed range 0–200 rpm
MS05-1 (This Model, MSE Version): Full displacement 514 ml/r, half displacement 257 ml/r, max power 25 kW, theoretical torque at 10 MPa 768 N·m, rated torque 1,921 N·m, rated pressure 25 MPa, max pressure 35 MPa (MSE version 400 bar), rated speed 85 rpm, speed range 0–190 rpm
MS05-2 (Single/Dual Displacement): Full displacement 560 ml/r, half displacement 280 ml/r, max power 25 kW, theoretical torque at 10 MPa 837 N·m, rated torque 2,092 N·m, rated pressure 25 MPa, max pressure 35 MPa, rated speed 80 rpm, speed range 0–180 rpm
MS05/MSE05 Series Common Specifications:
Series Max Displacement: 750 cc/rev (45.7 cu.in/rev)
Series Max Torque: 4,770 N·m (3,518 lb-ft)
MS Series Max Working Pressure: 450 bar (6,527 psi)
MSE Series Max Working Pressure: 400 bar (5,801 psi)
Series Max Power: 50 kW (67 HP)
Series Max Speed: 700 rpm
Type: Radial piston LSHT hydraulic motor
Control: Single or dual displacement
Brake: Service brake and parking brake options
Motor Type: Wheel motor / shaft motor (modular)
Anti-Skid Option: TwinLock™ available
Displacement Range: 260–750 cc/rev
Original Design: Poclain Hydraulics, France
Key Technical Advantages
1. Radial Piston Design for High Startup Torque and Smooth Low-Speed Operation
The MSE05-1 employs Poclain’s patented internal curve radial piston design, with multiple pistons distributed along the cam ring’s internal curve to deliver high torque even at extremely low speeds. With a rated torque of 1,921 N·m and theoretical torque of 768 N·m at 10 MPa, the motor operates smoothly across the entire 0–190 rpm speed range without stick-slip, making it ideal for wheel-drive and winch applications requiring high startup torque.
2. Modular Architecture for Maximum Adaptability
The MS/MSE05 series modular design allows displacement group, flow-distribution module, brake module and output-end module to be reconfigured without structural modification to the host machine. The 2A50 output-end configuration supports both wheel-drive and shaft-output mounting, enabling a single motor platform to serve skid steer loaders, harvesters, forklifts and more. The G14 module is a single-speed full-displacement configuration suited to applications requiring constant speed and torque output.
3. High-Precision Cam Ring and Long Service Life
The MS05/MSE05 cam ring is manufactured from high-hardness alloy steel with precision grinding to resist high-frequency contact fatigue from piston rollers. A hydrodynamic oil film forms between rollers and cam ring, significantly reducing wear rate and extending overhaul intervals. The modular design allows replacement of individual worn modules rather than the entire motor, substantially reducing total cost of ownership.
4. Integrated Anti-Skid and Brake Options
The MSE05 series offers optional TwinLock™ integrated anti-skid system for differential locking via hydraulic control, improving machine traction on challenging terrain. Service brake and parking brake modules are also available to meet different machine safety and regulatory requirements.
5. 100% Simulated Load Testing & Drop-In Interchangeability
Each MSE05-1 unit is bench-tested under simulated operating conditions prior to dispatch, covering pressure cycling, speed stepping, brake performance and thermal variation. Mounting flange, shaft end and port dimensions match the original Poclain MSE05 series exactly, enabling direct replacement without pipework or interface modification.
Application Areas
The MSE05-1 is deployed across demanding heavy-duty travel and tool drives:
Construction: skid steer loaders, road rollers, compact excavator travel drives
Agriculture: combine harvesters, cotton pickers, tractor front axles
Material Handling: forklifts, aerial work platforms, beam carriers
Mining: coal mining machinery, subsurface loaders, scraper conveyors
Marine: deck machinery, winch drives
Rail: track maintenance vehicle drives
Industrial: shredders, industrial conveyors
Expert Maintenance Tips
1. Oil Cleanliness and Temperature Control: Maintain system oil cleanliness at ISO 4406 18/16/13 or better. Operating oil temperature should be kept below 80°C; elevated temperatures accelerate seal degradation. Replace hydraulic oil and filter after the first 500 hours, then follow a 2,000-hour or annual replacement cycle.
2. Drain Line Management: The drain port must return to the reservoir independently—housing back pressure must not exceed 2 bar. The drain line end must remain submerged to prevent air ingestion. After extended shutdown, fill the housing with clean hydraulic oil before restarting.
3. Periodic Piston Group and Cam Ring Inspection: As a radial piston motor, the MSE05-1’s primary wear points are the piston rollers and cam ring contact surface. Inspect piston roller wear and cam ring working surface every 2,000 hours. Abnormal noise or efficiency loss requires immediate shutdown and service.
4. Brake Maintenance (If Brake Module Equipped): Multi-disc wet brakes require periodic inspection of friction plate thickness and spring preload. Abnormally high brake release pressure typically indicates friction plate wear or piston seal failure—replace friction plates and seals promptly. During reassembly, coat the piston seal contact surface with anti-oxidizing grease.
5. Modular Repair Strategy: The MS/MSE05 series modular design allows replacement of individual worn modules rather than the entire motor. Establish a modular spare parts inventory including flow-distribution module seals, piston groups and cam rings to minimize machine downtime. When replacing modules, follow Poclain official technical manual torque values and assembly sequences.
