Poclain MS08 Radial Piston Motor | MS08-9-1CA-M08-1120 | MS08-9-D1A-R08

The MS08 Series from LIC Hydraulic is a premier line of Radial Piston Motors built for heavy-duty drive applications. Models like the MS08-9-1CA-M08-1120-5DEFJMPZ and MS08-9-D1A-R08-2A10-5E00 are engineered to deliver massive torque directly to the wheels or shafts, optimizing system efficiency by eliminating redundant gearboxes. With its modular design, the MS08 series can be customized with various displacements and braking options to suit specific machine profiles. We provide 100% drop-in replacements, matching original Poclain geometric dimensions and dynamic performance ratings.

Technical Highlights

• Displacement Range: Up to $1120\text{ cc/rev}$ and beyond.

• Max Pressure: Continuous duty up to $400\text{ bar}$ ($5800\text{ psi}$), Peak $450\text{ bar}$.

• Braking: Integrated multi-disc parking/emergency brakes.

• Construction: Rugged radial piston, multi-stroke design.

Core Advantages

• Direct-Drive Integration: The MS08 series functions as a structural component of the vehicle. Its reinforced housing and heavy-duty bearings are designed to carry significant vehicle weight, simplifying machine architecture.

• High Volumetric Efficiency: Precision-machined cam rings and piston rollers ensure minimal internal leakage, maintaining maximum drawbar pull even as hydraulic oil temperatures rise.

• Flexible Speed Management: Supports multi-displacement (twin-speed) configurations, allowing the operator to shift from “High-Torque Work Mode” to “High-Speed Travel Mode” seamlessly.

• Environmental Resistance: With options for high-performance seals (Code E) and specialized coatings, these motors are built to perform in the mud, dust, and corrosive environments of global mining and construction sites.

Expert Maintenance Tips

• Case Drain Installation: Always connect the case drain line to the reservoir through the highest port on the motor housing. Excess case pressure is the primary cause of shaft seal failure.

• Oil Cleanliness: To protect the precision cam surface and piston rollers, maintain fluid cleanliness at ISO 18/16/13. Particle contamination leads to internal scoring and a loss of low-speed torque.

• Bleeding Air: Before the first full-load run, fill the motor case with clean oil and rotate it at low pressure to purge any trapped air, which prevents cavitation damage to the valve plate.