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Easy to clean, hygienic linear guide

14 December 2023

Igus, a member of the European Hygienic and Design Group (EHEDG), has developed the first linear guide system that is based on EHEDG hygienic design guidelines.

Built using FDA-compliant polymer and a high-alloy stainless steel, and featuring a carriage design with a washable interior, means the guide adheres to hygienic standards.

The main challenge when designing the new drylin W linear guide was how to construct a trap-free design. The focus was on designing a self-draining carriage and rail that would allow liquids to drain freely without trapping water. The self-draining carriage is made entirely of iglidur A160, one of the FDA- and EU10/2011-compliant igus materials.

The lubrication-free solution has already proved itself as a plain-bearing material in numerous applications in the food industry. Hygienic lead screws and large grooves are also used to prevent water from accumulating and beveled edges allow cleaning solutions to run off easily. The bottom seal protects the space under the rail from dirt accumulation, ensuring that no particles of food can be caught. The shafts are also sealed to prevent any gaps from collecting debris. A corrosion-free 316 stainless steel is used for the linear rail to avoid microscopic surface structures developing, preventing dirt from adhering.

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