Washdown gearmotors for hygienic industrial drive systems

Gearmotors designed for hygienic production environments must withstand aggressive cleaning regimes while maintaining reliable torque delivery in continuous-duty applications such as food processing and packaging automation. In this context, Bison introduced the 261 Series SanimotorⓇ inline parallel shaft washdown gearmotors for sanitary industrial drive applications.

Design features for washdown-intensive production environments
The 261 Series SanimotorⓇ gearmotors were developed for environments where equipment is regularly exposed to high-pressure and high-temperature cleaning procedures, particularly in food processing, beverage production and other hygienic automation settings.

The units feature an IP69K protection rating, a standard typically associated with equipment exposed to high-pressure spray cleaning. The enclosure uses sealed 304 stainless steel to support corrosion resistance and facilitate cleaning procedures required in sanitary production lines.

To prevent fluid ingress, the design incorporates a two-part spring-loaded shaft seal combined with EPDM O-rings. This configuration is intended to maintain sealing integrity under repeated washdown cycles. Additional durability measures include a laser-etched permanent nameplate designed to remain legible after repeated exposure to harsh cleaning conditions.

Mechanical configuration and operating characteristics
The gearmotors integrate AC inverter-duty motors rated at 1/7 HP or 1/8 HP. Operating characteristics include speed ranges from 8 to 350 rpm and torque output from 16 to 500 in-lbs, covering typical requirements for conveyors, mixers and other motion systems in hygienic production lines.

Sealed ball bearings combined with food-grade H1 grease provide lifetime lubrication, eliminating the need for routine relubrication in applications where maintenance access may be limited or where contamination risks must be minimized.

This configuration supports continuous operation scenarios where predictable torque delivery and reduced maintenance intervention are required in automated production systems.

Edited by industrial journalist Aishwarya Mambet, with AI-assistance.

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