Product Overview
The MSE05-2-113-F04-2A50-EJ00 is a dual-displacement radial piston hydraulic motor from Poclain Hydraulics’ MS/MSE05 series, featuring a full displacement of 750 cc/rev and a half displacement of 375 cc/rev with an integrated multi-disc wet brake (F04 module) and 2A50 wheel flange mounting. It is designed for wheel-drive and tool-drive applications requiring high torque at low speed. The manufacturer part number is 005543873Z.
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, 4,770 N·m maximum torque and 450 bar maximum pressure (MS version) / 400 bar (MSE version), with a multi-speed concept reaching up to 700 rpm. The series employs a modular design concept allowing a single base motor to be configured with different displacement groups, flow-distribution modules, brake modules and output-end modules, serving construction equipment, material handling, agriculture, environment, mining, rail, marine and industry.
The model code breaks down as follows: MSE05 identifies the MS/MSE series 05 frame size (E-version, 400 bar maximum working pressure); 2 denotes dual displacement configuration (750/375 cc/rev); 113 is the flow-distribution/function module code; F04 is the brake module (F=multi-disc wet brake, 04=brake specification code); 2A50 is the mounting flange and shaft code (wheel flange mounting, 10×Ø18 on Ø140); EJ00 denotes additional options including electrical control interface and shaft configuration.
The MSE05 series employs an internal curve radial piston design with a flange-plane output, enabling direct connection to wheel or tool ends. The F04 brake module integrates a multi-disc wet brake combining service and parking brake functions. 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: Full displacement 376 ml/r (22.9 cu.in/rev), half displacement 188 ml/r (11.5 cu.in/rev), max speed (1C) 520 rpm, max speed (2C) 455/520 rpm
MS05-0: Full displacement 468 ml/r (28.5 cu.in/rev), half displacement 234 ml/r (14.3 cu.in/rev), max speed (1C) 420 rpm, max speed (2C) 370/430 rpm
MS05-1: Full displacement 515 ml/r (31.4 cu.in/rev), half displacement 258 ml/r (15.7 cu.in/rev), max speed (1C) 370 rpm, max speed (2C) 330/400 rpm
MS05-2 (This Model): Full displacement 560 ml/r (34.2 cu.in/rev), half displacement 280 ml/r (17.1 cu.in/rev), max speed (1C) 340 rpm, max speed (2C) 300/350 rpm
MSE05-8: Full displacement 503 ml/r (30.7 cu.in/rev), half displacement 252 ml/r (15.4 cu.in/rev), max speed (1C) 380 rpm, max speed (2C) 330/370 rpm
MSE05-0: Full displacement 625 ml/r (38.1 cu.in/rev), half displacement 313 ml/r (19.1 cu.in/rev), max speed (1C) 300 rpm, max speed (2C) 270/300 rpm
MSE05-1: Full displacement 688 ml/r (42.0 cu.in/rev), half displacement 344 ml/r (21.0 cu.in/rev), max speed (1C) 270 rpm, max speed (2C) 240/270 rpm
MSE05-2 (High Configuration): Full displacement 750 ml/r (45.7 cu.in/rev), half displacement 375 ml/r (22.9 cu.in/rev), max speed (1C) 250 rpm, max speed (2C) 220/240 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) (1C motor)
Series Max Speed: 700 rpm
Type: Radial piston LSHT hydraulic motor (internal curve cam ring design)
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
MSE05-2-113-F04-2A50-EJ00 Additional Specifications:
Model Code: MSE05-2-113-F04-2A50-EJ00
Manufacturer Part Number: 005543873Z
Type: Compact radial piston motor, internal curve design
Displacement: 750 cc/rev (45.7 cu.in/rev) full / 375 cc/rev (22.9 cu.in/rev) half
Rated Working Pressure: 250 bar (25 MPa)
Max Working Pressure: 400 bar (5,801 psi)
Rated Torque: 2,803 N·m (full displacement)
Max Torque: 3,500 N·m (full displacement)
Rated Speed: 60 rpm
Speed Range: 0–140 rpm
Max Input Speed: 220/240 rpm (2C dual displacement configuration)
Valving Type: Dual displacement valving module
Brake Configuration: F04 multi-disc wet brake module (service + parking)
Mounting Flange: Wheel flange mounting, 10×Ø18 on Ø140
Motor Inertia: 0.2 kg·m²
Weight: ~52 kg (114.6 lbs)
Key Technical Advantages
1. Internal Curve Radial Piston Design for High Startup Torque and Smooth Low-Speed Operation
The MSE05-2-113 employs Poclain’s patented internal curve radial piston design, with multiple pistons distributed along the cam ring’s internal curve to deliver high torque at extremely low speeds. With a rated torque of 2,803 N·m and maximum torque of 3,500 N·m at full displacement, the motor operates smoothly across the entire 0–140 rpm speed range without stick-slip. High startup torque ensures reliable starting under load, making it ideal for wheel-drive and scraper conveyor drive applications.
2. Dual Displacement Design for Wide Operating Range
The MSE05-2 features a dual-displacement cam ring design with on-line switching between 750 cc/rev full displacement and 375 cc/rev half displacement. The full-displacement mode delivers maximum torque for heavy-duty startup and grade climbing; the half-displacement mode significantly increases speed capability (up to 240 rpm max input) for light-load cruising. A single motor covers the full spectrum from low-speed high-torque to high-speed low-torque operation.
3. Integrated Multi-Disc Wet Brake (F04 Module)
The F04 brake module integrates a multi-disc wet brake combining service brake and parking brake functions in a single unit. The brake employs a hydraulically released, spring-applied fail-safe design that automatically locks when system pressure is lost, ensuring safe machine parking. Static brake torque can be verified before installation to confirm factory performance. This configuration makes the MSE05-2-113 particularly suitable for wheel-drive applications requiring reliable braking.
4. Compact Wheel Flange Mounting and High Power Density
The MSE05-2-113 features 2A50 wheel flange mounting (10×Ø18 on Ø140) for direct connection to wheel hubs without additional reduction gearing or bearing support. With motor inertia of only 0.2 kg·m² and weight of approximately 52 kg, it delivers excellent power density in the MS05/MSE05 series. The compact construction is particularly suited for space-constrained wheel-drive installations.
5. 100% Simulated Load Testing & Drop-In Interchangeability
Each MSE05-2-113 unit is bench-tested under simulated operating conditions prior to dispatch, covering pressure cycling, speed shifting, 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 series is widely deployed in heavy-duty travel and tool drives:
Coal Mining: scraper conveyor drives (typical application for this model), roadheader star wheel motors, underground loader drives
Construction: road rollers, excavator travel drives, skid steer loaders
Agriculture: combine harvesters, cotton pickers, tractor front axles
Material Handling: forklifts, aerial work platforms, beam carriers
Marine & Offshore: deck machinery, winch drives
Industrial: shredders, industrial conveyors
Expert Maintenance Tips
1. Brake Running-In and Static Torque Verification: The F04 multi-disc wet brake module requires running-in after installation. Run the motor at 50 rpm and perform 10 consecutive brake applications of 30 seconds each, then reverse rotation direction and repeat. The running-in process takes 5 to 10 minutes total. After running-in, perform static brake torque verification to confirm release pressure is within the technical manual range and brake torque meets the calibration value. Abnormally high release pressure typically indicates friction plate wear or piston seal failure—replace promptly.
2. Dual Displacement Valving Module Maintenance: The dual displacement valving module is controlled by pilot pressure. If shift response is sluggish or excessively harsh, inspect the pilot control spool for sticking and the flow-distribution shaft O-rings for aging. Shift operations should be performed at low speed or standstill to avoid impact loading on the distribution mechanism.
3. Wheel Flange Mounting Surface Inspection: The MSE05-2-113 features wheel flange mounting. Periodically inspect the output flange plane and wheel hub mating surface for wear or deformation. Ensure flange mating surface parallelism deviation does not exceed 0.05 mm during installation, and tighten bolts evenly in a diagonal sequence to Poclain technical manual torque values.
4. 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 brake friction plate and seal degradation. Replace hydraulic oil and filter after the first 500 hours, then follow a 2,000-hour or annual replacement cycle.
5. Periodic Piston Group and Cam Ring Inspection: As a radial piston motor, the MSE05-2-113’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. Both displacement cam surfaces require inspection. Abnormal noise or efficiency loss requires immediate shutdown and service.
