Danfoss OMS/OMSW Orbital Motor Replacement | High-Torque Hydraulic Motor

Genlu Hydraulic proudly introduces our industrial-grade OMS and OMSW Series orbital hydraulic motors. This series is fully engineered to match global standards, providing a seamless, high-value drop-in replacement for Danfoss original equipment, specifically optimized for heavy-duty drive applications requiring high torque and high radial load capacity. We specifically highlight our supply capability for precision-tuned units such as the OMSW200 (151F5144), OMSW100 (11066730), and OMSW100 (151F0522).

The OMS/OMSW series leverages advanced Geroler rotor technology, delivering elite power density in a compact footprint. Genlu guarantees 100% Drop-in Interchangeability across mounting flanges, shaft splines, port configurations, and internal torque-distribution logic compared to original Danfoss assemblies. Every motor undergoes 100% full-pressure load and volumetric-efficiency verification on our digital test benches, certifying consistent, rugged performance for your most demanding transmission tasks.

Technical Specifications 

• Product Series: Danfoss OMS/OMSW Series Orbital Motor

• Representative Models: OMSW200 (151F5144), OMSW100 (11066730), OMSW100 (151F0522)

• Displacement Range: 80 cc/rev to 500 cc/rev

• Nominal Operating Pressure: 200 – 240 bar (Continuous)

• Peak Transient Pressure: 280 – 300 bar

• Max Output Torque: 700 – 1200 Nm (Model-dependent)

• Maximum Speed: 400 – 750 rpm

• Bearing Design: OMSW features reinforced hub bearings for high radial loads

• Shaft Options: Cylindrical, Splined, or Tapered

• Approximate Unit Weight: 12 – 18 kg

Key Technical Advantages:

• Reinforced Hub Design (OMSW): Optimized bearing housing and shaft design allow the OMSW series to support massive radial loads, enabling direct drive of wheels or sprockets without external support gearboxes.

• Superior Low-Speed Smoothness: Optimized Geroler timing geometry eliminates meshing pulsations, ensuring smooth, high-torque delivery at speeds as low as 10 rpm, preventing stick-slip operation.

• High-Pressure Shaft Seal: Premium high-pressure shaft seals maintain integrity even under internal casing backpressure, preventing leakage in complex return-line configurations.

• Automatic Axial Compensation: Integrated axial pressure compensation dynamically adjusts rotor-set clearances based on load, maximizing volumetric efficiency and minimizing heat-generating internal leaks.

Application Areas:

• Mobile Drive Systems: Agricultural harvesters, forestry processors, and compact construction vehicle drives.

• Material Handling: Industrial conveyor drives and heavy-duty winch applications.

• Municipal Maintenance: Sweepers, snowplows, and specialized cleaning equipment.

Expert Maintenance Tips:

• Independent Case Drains: In high-pressure fluctuating circuits, route the case drain directly to the reservoir. Never connect the drain line to the common return, as backpressure will compromise shaft-seal longevity.

• Cold-Start Warm-up: In temperatures below 5°C, allow 5-10 minutes of low-load operation to stabilize oil viscosity, protecting the rotor set from lubrication starvation during startup.

• Strict Filtration Standards: Adhere to ISO 4406 18/16/13 standards. Regularly monitor return-line filter differential pressure to prevent particulate-induced scoring of the precision distribution faces.