Danfoss OMV Series Orbital Hydraulic Motor Replacement | High-Torque OMVW Motor

Genlu Hydraulic proudly introduces our industrial-grade OMV and OMVW Series orbital motors. Fully engineered to match global standards, this series provides a high-torque, heavy-duty replacement for Danfoss original equipment. We specifically highlight our supply capability for precision-tuned units such as the OMVW630 and variants like 151B3158, 151B3141, 151B3123, 151B3118, 151B2197, 151B2173, and 151B2168.

As the “powerhouse” of orbital motors, the OMV series features a disc-valve design that ensures elite volumetric efficiency even under peak flow and high-pressure conditions. Genlu guarantees 100% Drop-in Interchangeability across mounting flanges, shaft splines, port configurations, and torque characteristics compared to original Danfoss OMV/OMVW assemblies. Every motor undergoes 100% full-pressure load and volumetric-efficiency verification on our digital test benches, certifying rugged, consistent performance for your most demanding hydraulic transmissions.

Technical Specifications 

• Product Series: Danfoss OMV / OMVW Series High-Torque Orbital Motor

• Representative Models: OMVW630 (151B3158, 151B3141, 151B3123, 151B3118, 151B2197, 151B2173, 151B2168)

• Displacement Range: 315 cc/rev to 800 cc/rev

• Nominal Operating Pressure: 200 – 250 bar (Continuous)

• Peak Transient Pressure: 300 bar

• Max Output Torque: Up to 2000 Nm+ (Model-dependent)

• Max Speed: 400 – 600 rpm

• Bearing Design: Reinforced tapered roller bearings for extreme load capacity

• Shaft Options: Conical / Splined (SAE Standard)

Key Technical Advantages:

• Disc Valve Technology: Unlike standard spool-valve motors, the OMV disc-valve design offers superior volumetric efficiency at high flows and pressures, minimizing internal energy loss.

• Extreme Radial Load Capacity: Integrated reinforced roller bearings allow for direct mounting of heavy loads, such as sprockets or hubs, eliminating the need for expensive external gearboxes.

• Elite Cold-Start Performance: Optimized friction surfaces and internal leakage compensation ensure smooth start-up even in sub-zero environments, preventing stick-slip and torque stagnation.

• High-Pressure Shaft Seal: Premium high-pressure seals withstand significant case-backpressure, maintaining leak-free operation even in complex hydraulic circuit return configurations.

Application Areas:

• Construction & Heavy Industry: Tunneling equipment, heavy-duty drilling rigs, and industrial mixer drum drives.

• Municipal Maintenance: High-capacity snowplows and waste-compaction vehicle drives.

• Material Handling: Heavy-duty winch drives and large-scale conveyor systems.

Expert Maintenance Tips:

• Independent Case Drains: As a high-displacement unit, OMV motors require unrestricted case-drain lines connected directly to the reservoir. Backpressure will lead to premature shaft-seal failure during high-pressure cycles.

• Pre-fill Before Startup: Always pre-fill the motor housing with clean hydraulic fluid through the highest drain port before initial operation to protect the precision rotating group from dry-start scoring.

• Viscosity Management: Keep fluid viscosity within the 20-75 cSt range. In extreme temperatures, utilize system heating or cooling to protect the precision friction components inside the motor.