Sauer Danfoss OMV Series Orbit Motor

The Sauer Danfoss OMV Series is a heavy-duty low-speed, high-torque (LSHT) orbital motor designed for the most demanding applications. As one of the largest motors in the Danfoss O-Series, the OMV features a rugged design with tapered roller bearings and disc valve technology. This ensures smooth operation at low speeds, high volumetric efficiency, and the ability to withstand extremely high radial and axial loads on the output shaft.

Key Features:

Series: OMV (Heavy Duty)
Displacement: 315 to 800 cm³/rev
Max. Torque: Up to 2110 Nm (Continuous)
Design: Disc Valve, Geroler Gear Set.

Product Overview The Danfoss OMV Orbit Motor is engineered for continuous operation under difficult conditions. Unlike smaller motors that use spool valves, the OMV utilizes a pressure-balanced disc valve distribution system. This design minimizes internal leakage and compensates for wear, maintaining high efficiency over a long service life. The extra-large output shaft and heavy-duty bearing assembly allow the OMV to directly drive heavy loads, such as vehicle wheels or winch drums, without external support.

Why Choose Danfoss OMV?

Massive Torque: Capable of delivering continuous torque over 2000 Nm, making it suitable for moving heavy loads.
High Efficiency: The Geroler gear set and disc valve minimize mechanical and hydraulic losses.
Robust Bearings: Tapered roller bearings permit very high radial and axial shaft loads.
Smooth Operation: Excellent low-speed stability prevents “cogging” or jerky movement at startup.

Common Applications:

Marine: Winches, Capstans, Crane rotation drives.
Construction: Drilling rigs (Auger drives), Wheel drives for heavy transporters.
Forestry: Harvester heads.
Mining: Conveyor drives, Tunneling equipment.

Specification	Value / Description
Product Type	Heavy Duty Orbital Motor (LSHT)
Brand	Sauer Danfoss / Danfoss Power Solutions
Series	OMV
Displacement Range ( $V_g$ )	315: 314.5 cm³/rev 400: 401.9 cm³/rev 500: 513.5 cm³/rev 630: 629.1 cm³/rev 800: 801.8 cm³/rev
Max. Continuous Pressure	210 bar (3050 psi)
Max. Peak Pressure	240 bar (3500 psi)
Max. Speed ( $n$ )	200 – 630 rpm (Size dependent)
Max. Torque (Cont.)	920 – 1880 Nm
Shaft Options	Splined (Standard), Tapered, Cylindrical
Mounting	Standard 4-Bolt Flange (Pilot Ø160mm)
Common Part Numbers	Model Code Structure: 151B-[Number] 151B3100 (OMV 315, Cylindrical Shaft) 151B3101 (OMV 400, Cylindrical Shaft) 151B3102 (OMV 500, Cylindrical Shaft) 151B3103 (OMV 630, Cylindrical Shaft) 151B3104 (OMV 800, Cylindrical Shaft) 151B2150 (OMV 315, Splined Shaft) 151B2151 (OMV 400, Splined Shaft) 151B2152 (OMV 500, Splined Shaft) (Note: Codes vary by shaft/flange combo. “151B” is the standard prefix for OMV)