Product Overview
The MSE02 series low-speed high-torque (LSHT) radial piston hydraulic motors are a core product within the Poclain Hydraulics MS/MSE multipurpose motor platform. Featuring an advanced radial piston cam ring design combined with multi-action disc valve distribution technology, these motors deliver low sensitivity to pressure and temperature variations, automatic compensation of the distribution friction pair, and exceptional starting torque with smooth low-speed operation.
Designed to fully comply with Poclain MSE02 series mounting and interface standards, these motors offer 100% direct interchangeability with original Poclain units—enabling plug-and-play replacement without any管路 modifications or adapter plates, significantly minimizing downtime and retrofit costs.
The MSE02 series delivers up to 398 cc/rev maximum displacement and 22 kW maximum power. Featuring a modular design with single displacement (1C) and dual displacement (2C) options for multispeed control. Every unit undergoes 100% factory testing under simulated real-world working conditions, validating pressure, flow, torque output, and performance characteristics before shipment—ensuring reliable operation from the very first start.
Model Code Interpretation:
MSE02-2-11A-F03-3AC0-FM00 / MSE02-2-11A-F03-3AC0-Y3FMI
MSE – Series code: Radial piston hydraulic motor (MSE series, 400 bar working pressure)
02 – Size code: 02 platform, max power 22 kW
2 – Displacement type: Dual displacement (2-speed) configuration
11A – Displacement code: Corresponds to displacement group (first displacement approx. 332 cc/rev, second approx. 166 cc/rev)
F03 – Mounting flange and interface type
3AC0 / 3AC0-Y3FMI – Shaft, brake, and special options configuration code
Technical Specifications
MSE02-2-11A-F03-3AC0-FM00 / MSE02-2-11A-F03-3AC0-Y3FMI
Model: MSE02-2-11A-F03-3AC0-FM00 / MSE02-2-11A-F03-3AC0-Y3FMI
Type: Radial piston hydraulic motor (LSHT)
Series Maximum Displacement: 398 cc/rev (24.3 cu.in/rev)
Displacement Code 11A: Approx. 332 / 166 cc/rev (dual displacement configuration)
Maximum Working Pressure (MSE series): 400 bar (5,802 PSI)
Maximum Pressure (MS series reference): 450 bar (6,527 PSI)
Maximum Torque: 2,500 N·m (1,843 lb-ft)
Maximum Power: 22 kW (29.5 HP)
Maximum Speed: 900 RPM (multispeed configuration)
Displacement Type: Dual displacement (2-speed)
Brake Configuration: Service brake / Parking brake (optional)
Anti-skid Option: Twin-Lock™ available (optional)
Medium: Mineral oil, synthetic hydraulic oil
Operating Temperature Range: -40°C to +80°C (standard seals)
MSE02 Series Displacement and Speed Reference :
Displacement Group Code “8”: 172 / 86 cc/rev
Displacement Group Code “0”: 213 / 107 cc/rev
Displacement Group Code “1”: 235 / 118 cc/rev
Displacement Group Code “2”: 255 / 128 cc/rev
Displacement Group Code “0” (MSE): 332 / 166 cc/rev
Displacement Group Code “1” (MSE): 364 / 182 cc/rev
Displacement Group Code “2” (MSE): 398 / 199 cc/rev
Key Technical Advantages
1. 100% Direct Interchangeability – Zero Modification Required
The MSE02 series is engineered to exact Poclain mounting and interface specifications, with identical dimensions, port locations, and shaft end configurations. End users can replace original units directly without any管路 modifications or adapter plates—transforming unplanned downtime into scheduled, rapid maintenance while significantly reducing spare parts procurement costs and equipment downtime losses.
2. Radial Piston Cam Ring Design – Superior Starting Torque and Low-Speed Performance
The advanced radial piston cam ring design, combined with multi-action disc valve distribution technology, delivers low sensitivity to pressure and temperature variations with automatic compensation of the distribution friction pair. The pistons move within the cam ring, generating high torque even at extremely low speeds. This design makes the MSE02 series ideal for wheel drive and low-speed heavy-load applications.
3. Modular Design with Flexible Multi-Function Configuration
The MSE02 series features a modular design with single displacement (1C) and dual displacement (2C) options for multispeed control. Optional service brakes, parking brakes, and Twin-Lock™ anti-skid systems are available. The modular architecture enables rapid adaptation to different applications from a single platform, significantly reducing inventory complexity and maintenance costs.
4. High-Pressure Capability with Long-Life Bearing System
MSE series operates at 400 bar working pressure—industry-leading pressure ratings in the radial piston motor class. The high-durability bearing design accommodates substantial external axial and radial loads. Reliable high-temperature shaft seals ensure long-term sealing performance under demanding operating conditions.
5. Compact Design with High Power Density
Delivers 22 kW maximum power and 2,500 N·m maximum torque within a compact mounting footprint. The optimized power density makes the MSE02 series the ideal choice for high-performance drives in space-constrained applications.
6. 100% Factory Testing Under Simulated Working Conditions
Every MSE02 series unit undergoes rigorous factory testing under simulated real-world conditions, validating pressure, flow, torque output, volumetric efficiency, and thermal characteristics across the full operating range. Test media match actual operating conditions, ensuring each unit is ready for immediate installation and reliable operation upon delivery—eliminating the risk of “dead on arrival” components.
Application Areas
The MSE02 series motors are widely deployed across the following industries and equipment types:
Construction Equipment: Compact excavator travel drives, skid steer loader wheel drives
Road Construction: Roller travel drives
Material Handling: Forklifts, handling equipment
Agricultural Machinery: Combine harvester travel drives, large tractors
Mining Equipment: Mining machinery
Railway Equipment: Railway engineering machinery
Marine & Shipbuilding: Marine winches, deck machinery
Industrial Equipment: Industrial tool drives, conveyors
Expert Maintenance Tips
1. Hydraulic Fluid Cleanliness Management
The MSE02 series utilizes radial piston designs with minimal clearances between pistons and cylinder bores, making them highly sensitive to fluid contamination. It is recommended to install filters with ≤10μm filtration rating, maintaining fluid cleanliness to ISO 4406 19/17/14 or better. Never use degraded or substandard hydraulic fluids.
2. Air Bleeding Before Start-up
Always bleed air from the motor housing via the highest bleed screw before initial start-up or after extended shutdown periods to prevent cavitation damage. Use a waste oil collector to recover hydraulic fluid escaping during the filling process.
3. Case Drain and Backpressure Control
Ensure the case drain line is unrestricted with no flow restrictions. Excessive case backpressure will cause shaft seal damage and premature bearing failure. The drain line should return directly to the reservoir, not in parallel with the return line.
4. Rotation Direction Confirmation
Reversing the fluid flow direction will reverse the motor‘s direction of rotation. Verify that the system circuit direction matches the required rotation direction before installation.
5. Dual Displacement Configuration Tuning
This series features dual displacement (2-speed) configuration with displacement switching via control ports. During commissioning, verify that the switching control pressure is stable and response is rapid. Avoid frequent switching under load to prevent shock loads.
6. Coupling Alignment Requirements
Maintain shaft alignment within 0.05 mm concentricity and 0.5° angular deviation between the drive shaft and the load shaft. Excessive misalignment will lead to premature bearing wear and shaft seal leakage. The use of flexible couplings is recommended to compensate for minor installation deviations.
7. Periodic Inspection and Maintenance
Inspect shaft seals for leakage and listen for abnormal operating noise every 1,000 operating hours or every 6 months (whichever comes first). If reduced torque output or abnormal operating noise is observed, timely overhaul of the piston assembly and valve plate is recommended.
