OMS200 151F0570 Danfoss OMS Series Orbit Motor

Product Overview

The OMS200 (151F0570), OMS80, OMS100, OMS130, OMS250, OMS315 and OMS500 belong to the Danfoss (formerly Sauer-Danfoss) OMS Series low-speed high-torque (LSHT) orbital hydraulic motors. Featuring a precision Geroler gear set with disc-valve architecture, these motors are engineered for medium-to-heavy-duty applications under high pressure, frequent reversals and demanding conditions. They deliver high starting torque, smooth low-speed operation, excellent radial and axial bearing capacity and a high-pressure shaft seal. Fully interchangeable with original Danfoss OMS Series units, they are validated under simulated operating conditions for reliable performance in agriculture, forestry, construction and material-handling systems.

Technical Specifications 

• Models: OMS200 151F0570 / OMS80 / OMS100 / OMS130 / OMS250 / OMS315 / OMS500 (Danfoss OMS Series)
• OMS 80 Geometric Displacement: 80.5 cm³/rev
• OMS 100 Geometric Displacement: 100.0 cm³/rev
• OMS 200 Geometric Displacement: 200.0 cm³/rev
• OMS 250 Geometric Displacement: 250.0 cm³/rev
• OMS 315 Geometric Displacement: 314.9 cm³/rev
• OMS 500 Geometric Displacement: 488.0 cm³/rev
• Continuous Maximum Pressure Drop: 120–210 bar (displacement-dependent)
• Intermittent Maximum Pressure Drop: 140–275 bar
• Continuous Maximum Torque: 240–865 Nm (displacement-dependent)
• Continuous Maximum Speed: 155–810 rpm (displacement-dependent)
• Control Type: Disc-valve-driven Geroler orbital motor
• Bearings: Tapered roller bearings (front and rear)
• Mounting: Standard or wheel-type flange

Key Technical Advantages

1. Independently driven, hydraulically balanced disc valve minimizes hydraulic and mechanical losses, maintaining high volumetric and mechanical efficiency even at elevated pressures.
2. Front and rear tapered roller bearings provide superior radial and axial load capacity, ideal for direct wheel-hub or chain-drive applications under static and dynamic loads.
3. High-pressure shaft seal design allows elevated return pressures without requiring a separate drain line, simplifying system plumbing and enhancing reliability.
4. High starting torque combined with smooth operation across the full speed range makes the motors well-suited for frequent start-stop, low-speed high-load and reversing duty cycles.
5. Precision machining and quality materials enhance overall durability for medium-to-heavy-duty continuous or intermittent service.

Application Areas

Forestry equipment (harvester head drives), agricultural machinery, construction vehicle propulsion and rotation, material handling and lifting systems, winches and hoists, augers, and other mobile or stationary equipment requiring high torque at low to medium speeds.

Expert Maintenance Tips

Ensure proper flange alignment and respect radial/axial load limits during installation. Use anti-wear hydraulic oil with operating viscosity of 20–43 cSt and maintain appropriate oil temperature. Fully bleed the system and run at light load for initial break-in. Maintain fluid cleanliness (10–25 μm filtration recommended) and periodically inspect the shaft seal. Intermittent and peak pressure ratings are for short-duration use only (intermittent max 10% of each minute; peak max 1%). In case of unusual noise, vibration or torque loss, first check system contamination, fluid condition and bearing preload. Use genuine Danfoss seal kits for service.