Treotham hygienic design gearboxes

Designed and certified according to EHEDG (European Hygienic Engineering & Design Group) rules to ensure optimal material resistance and cleanability, these hygienic design gearboxes meet the most stringent requirements of the food and pharmaceutical packaging industries.

With their coaxial, dynamic planetary gearheads available in several different performance classes, the hygienic design gearboxes have been designed to provide robustness, resistance and cleanability - the three key elements when determining the housing design, choice of materials and processing techniques for any hygienic gearboxes.

The gearbox housing is also completely free of edges, dead spaces and gaps that could provide a breeding ground for bacteria or microorganisms or act as dirt traps.

The gearbox housing and adapter plate are manufactured from stainless steel 1.4404 / AISI 316L - a low-carbon steel that is approved by the US FDA for food contact - that offers high resistance to cleaning and washdown fluids such as disinfectants containing hypochlorite or chlorinated alkaline foam cleaners.

All stainless steel surfaces of the gearboxes are electro-polished with a roughness of either 0.8 µm Ra, as stipulated for food processing applications or 0.4 µm Ra, which is the accepted standard for the pharmaceutical industry.

The seals on both the motor and the output side of the gearboxes are made from PTFE - a chemically inert material that is resistant to heat as well as to a wide range of media.