OMS80 151F0500 Danfoss OMS Cycloidal Motor 80.5cc

Product Overview

The OMS 80 151F0500, OMT 160 151B-3205, OMTW 400 151B3028 and related OMS/OMR/OMT/OMV/OMTW series are precision drop-in interchangeable cycloidal (Geroler) low-speed high-torque hydraulic motors for Danfoss (formerly Sauer-Danfoss). Featuring a high-efficiency cycloidal gear set and optimized distribution, they deliver high volumetric efficiency, low noise and reliable bi-directional operation. Every unit undergoes 100% simulated operating-condition testing to guarantee identical mounting dimensions, performance curves and control characteristics to genuine Danfoss OMS/OMT/OMTW motors—ready for direct replacement in medium-to-heavy duty mobile and industrial hydraulic drive systems.

Technical Specifications 

• Models: OMS 80 151F0500 / OMT 160 151B-3205 / OMTW 400 151B3028 (Danfoss OMS/OMT/OMTW series interchange)
• Geometric displacement: OMS 80 80.5 cm³/rev; OMT 160 161.1 cm³/rev; OMTW 400 approx. 410.9 cm³/rev
• Continuous pressure drop: OMS 80 210 bar; OMT 160 200 bar; OMTW 400 180 bar
• Intermittent pressure drop: OMS 80 275 bar; OMT 160 240 bar; OMTW 400 210 bar
• Peak pressure: OMS 80 295 bar
• Maximum continuous speed: OMS 80 810 rpm; OMT 160 625 rpm; OMTW 400 305 rpm
• Maximum intermittent speed: OMS 80 1000 rpm; OMT 160 780 rpm
• Continuous torque: OMS 80 240 Nm; OMT 160 470 Nm; OMTW 400 approx. 1080 Nm
• Intermittent torque: OMS 80 310 Nm; OMT 160 560 Nm; OMTW 400 approx. 1260 Nm
• Maximum output power: OMS 80 approx. 15.5 kW; OMT 160 approx. 26.5 kW
• Control: Standard bidirectional rotation
• Typical mounting and shaft options: various flanges and cylindrical/splined shafts
• Weight: approx. 10–25 kg depending on model

Key Technical Advantages

1. High-precision cycloidal gear set: Delivers high volumetric efficiency, smooth low-speed operation and automatic wear compensation with starting torque close to theoretical values.
2. High pressure and high torque capability: Continuous pressure drop up to 210 bar and torque range from 240 Nm to over 1000 Nm for demanding medium-to-heavy duty applications.
3. Low-noise and long-life design: Optimized internal oil paths and bearing structure reduce operating noise while extending seal and bearing service life.
4. True drop-in interchangeability: Exact match to Danfoss OMS/OMT/OMTW series mounting dimensions and performance curves for direct replacement without modification.

Application Areas

Agricultural machinery (harvesters, sprayers), construction equipment (trenchers, sweepers), forestry machines, conveyors and material-handling systems, winches and boom-rotate mechanisms, and fixed industrial hydraulic installations requiring reliable low-speed high-torque output.

Expert Maintenance Tips

Verify exact flange and shaft configuration match the original machine before installation. Use clean hydraulic fluid with adequate filtration (ISO 18/13 or better recommended). Fully bleed the system prior to first operation to avoid dry running. Periodically inspect shaft and port seals. Maintain oil temperature within recommended range and limit intermittent high-pressure operation to no more than 10% of total running time. For long-term storage, protect against corrosion and seal all ports.

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