RF127-DRN250M4 Helical Geared Motor (SEW MOVI-TOOLS Compatible)
The SEW-EURODRIVE RF127-DRN250M4 helical gearmotor combines a high-torque R-series helical reducer with an IE3 premium efficiency DRN250M4 AC motor. Designed for heavy-duty industrial applications, it delivers up to 18,000 Nm output torque with ≥96% transmission efficiency. Its compact RF flange-mounted design, MOVI-TOOLS compatibility, and robust cast iron housing ensure reliable, energy-efficient operation in demanding environments.
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Estimated Delivery Date: Oct 19-Oct 19
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As a flagship product of the global drive technology leader SEW-EURODRIVE, this RF127-DRN250M4 helical gearmotor combines the high-efficiency R-series helical reducer with an IE3 premium efficiency DRN250M4 AC motor, delivering outstanding performance for heavy-duty industrial applications. Built on SEW's proven modular design, it supports decentralized installation and seamless integration with the MOVI-TOOLS engineering software for simplified configuration, programming and diagnostics.
Key Features & Benefits
- High Power Density: The R-series helical reducer delivers up to 18,000 Nm of output torque with transmission efficiency exceeding 96%, ensuring reliable operation even under harsh working conditions.
- Energy Saving: The DRN250M4 motor meets IE3 premium efficiency standards, reducing energy consumption and operating costs for long-term continuous operation.
- Low Noise & Vibration: Precision-ground carburized gears and high-strength cast iron housing ensure smooth, quiet operation with minimal vibration.
- Flexible Installation: RF flange-mounted design saves space and adapts to various mounting configurations.
- MOVI-TOOLS Compatible: Full support for SEW's MOVITOOLS MotionStudio software, enabling one-click parameter setup, bus communication diagnostics and remote maintenance to cut commissioning time by up to 70%.
- Long Service Life: Main components are rated for over 20,000 hours of normal operation, with premium oil seals and lubricants minimizing maintenance needs.
- Technical Specifications
| Parameter | Value |
|---|---|
| Reducer Series | R-series Helical (RF Flange Mounted) |
| Frame Size | RF127 |
| Motor Type | DRN250M4 (IE3 Premium Efficiency, 4-pole) |
| Output Torque Range | Up to 18,000 Nm |
| Transmission Efficiency | ≥96% |
| Gear Ratios | 1.30 – 289.74 (multi-stage up to 27,001) |
| Protection Class | IP55 (standard), up to IP66/IP69K optional |
| Operating Temperature | -20°C to +40°C (standard lubricant) Typical Applications Widely used in material handling, metallurgy, cement production, mining, port machinery, chemical processing, food & beverage production and wastewater treatment – anywhere reliable, high-torque drive solutions are required. Why Choose SEW? Founded in 1931 and headquartered in Bruchsal, Germany, SEW-EURODRIVE operates 17 manufacturing plants and over 200 service centers worldwide. With nearly a century of expertise in modular drive technology, SEW products are trusted by industries across 5 continents for their durability, precision and energy efficiency. Contact us today for technical consultation, customized solutions and competitive pricing. We offer full after-sales support including spare parts supply, on-site commissioning and remote diagnostics. |
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