W Series Reducers
SEW W series worm gear reducers, with mechanical self-locking, offer 50-220Nm torque, 0.12-1.5kW motor support, 5:1-100:1 ratio. IP54 (opt IP66), ISO compliant, suit logistics/medical industries for stable, low-noise precision transmission.
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Estimated Delivery Date: Mar 06-Mar 06
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W Series Reducers
SEW W series reducers, high-performance worm gear units, are specialized transmission devices engineered for industrial scenarios demanding precision, self-locking capability, and compact installation. As a classic product of SEW-EURODRIVE, this series integrates advanced worm gear technology, featuring smooth operation, low noise, and reliable mechanical self-locking, making it a preferred choice for light to medium-load precision transmission applications.
The W series boasts a versatile modular design, covering multiple sub-models to adapt to diverse installation needs, including foot-mounted, flange-mounted, and universal mounting configurations. It delivers an output torque range of 50Nm to 220Nm, supports motor power of 0.12kW to 1.5kW via standardized adapters, and offers a single-stage transmission ratio of 5:1 to 100:1. High-precision variants ensure transmission error within 1.0arcmin, meeting the requirements of precision positioning equipment.
Compliant with international standards such as ISO 9001 and GB/T 16474, the W series features robust construction for long service life. Its housing is made of high-strength die-cast aluminum (for small models) or cast iron (for heavy-duty models), paired with high-quality bronze worm wheels and hardened alloy steel worms. Advanced sealing technology and high-temperature resistant lubricants ensure excellent dustproof and waterproof performance, with a standard protection grade of IP54 (optional IP66).
Widely applied in logistics, food processing, medical equipment, and automation industries, it reliably drives conveyors, packaging machinery, lifting platforms, and precision positioning devices. It operates stably in ambient temperatures of -20℃ to 50℃, with customized low-temperature versions available for -45℃ environments. Backed by SEW’s global service network, the W series provides efficient and reliable transmission solutions for global light to medium-load industrial needs.
SEW Reducer W Series Models, Weights and Motor Combinations
Note: The weights are for the reducer body only (aluminum housing) and vary slightly by installation type. Motor combinations are based on SEW standard SPIROPLAN® matching, covering IE1-IE4 efficiency classes and common power ranges.
1. W Series (Foot-mounted Solid Shaft, Spiroplan Right-angle Reducer)
| Model | Weight | Motor Combination (Power Range) |
|---|---|---|
| W10 | 2.1kg | DT56M4, DT56L4 (0.09-0.12kW); No matching DRS series motor |
| W20 | 2.8kg | DR63S4, DR63L4 (0.12-0.25kW); DRS71S4 (0.18-0.37kW) |
| W30 | 3.5kg | DR63S4, DR63L4 (0.12-0.25kW); DRS71S4, DRS80M4 (0.18-1.1kW) |
| W37 | 5.2kg | DR63S4, DR63L4 (0.12-0.25kW); DRS71S4-DRS90L4 (0.18-2.2kW); DRE80S4-DRE90L4 (0.37-1.5kW) |
| W47 | 7.8kg | DR63S4, DR63L4 (0.12-0.25kW); DRS71S4-DRS132S4 (0.18-5.5kW); DRE80S4-DRE132S4 (0.37-4.0kW); DRN80M4-DRN112M4 (0.75-4.0kW) |
2. WF Series (Flange-mounted, Spiroplan Right-angle Reducer)
| Model | Weight | Motor Combination (Power Range) |
|---|---|---|
| WF10 | 2.3kg | Same as W10 (0.09-0.12kW) |
| WF20 | 3.0kg | Same as W20 (0.12-0.37kW) |
| WF30 | 3.8kg | Same as W30 (0.12-1.1kW) |
| WF37 | 5.5kg | Same as W37 (0.12-2.2kW) |
| WF47 | 8.2kg | Same as W47 (0.12-5.5kW) |
3. WA Series (Hollow Shaft Mounted, Spiroplan Right-angle Reducer)
| Model | Weight | Motor Combination (Power Range) |
|---|---|---|
| WA37 | 5.4kg | Same as W37 (0.12-2.2kW) |
| WA47 | 8.0kg | Same as W47 (0.12-5.5kW) |
| WAF37 | 5.7kg | Same as W37 (0.12-2.2kW, flange hollow shaft) |
| WAF47 | 8.4kg | Same as W47 (0.12-5.5kW, flange hollow shaft) |
4. WH Series (Hollow Shaft with Clamping Hub, Spiroplan Right-angle Reducer)
| Model | Weight | Motor Combination (Power Range) |
|---|---|---|
| WH37 | 5.6kg | Same as W37 (0.12-2.2kW, clamping hub) |
| WH47 | 8.5kg | Same as W47 (0.12-5.5kW, clamping hub) |
| WHF37 | 5.9kg | Same as W37 (0.12-2.2kW, flange + clamping hub) |
| WHF47 | 8.8kg | Same as W47 (0.12-5.5kW, flange + clamping hub) |
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