The new series of Stainless Steel Actuators "Axenia-CPM" Wittenstein Motion Control GmbH is suitable for the pharmaceutical packaging industry and food processing. It is designed to strict "Hygenic Design" guidelines - with no sharp edges or external screw heads. The plants are often cleaned in these industries several times a day with corrosive acids, aggressive cleaning and sharp disinfectants, sometimes also high pressure cleaning devices such as steam jets are used.
These cleaning instructions therefore place extremely high demands on the material used - resistance over a long period of time without corrosion and leakages are a basic prerequisite here.
Painted machine parts are usually undesirable in these industries, the risk of peeling paint and thus contamination of the processed material is too large here. Alternatively, non-durable machine and drive components are either housed in stainless steel enclosures, which can lead to thermal problems, or they are installed below the processing zone in a protected space. This means a high design effort and the use of additional wear-prone mechanical transmission elements, such as toggle, shafts or belts.
The axenia CPM, which is designed in protection class IP 67, consists of a highly dynamic synchronous servo motor and a Wittenstein planetary gearhead. It is recommended for infeed and positioning tasks in the medium accuracy range. Complying with the hygienic design guideline, the surface has no screw heads, corners or edges. It is therefore easy to clean, dirt and germ formation due to food deposits have no chance. When working with higher pressure, the protection class IP 69 can be realized.
The actuators are individually tailored to the needs and requirements of the customers. The range of cleaning and environmental conditions is too diverse to offer a meaningful standard. Application requirements range from dairy processing with higher operating temperatures to meat processing at refrigerator temperatures, from nitric acid to hydrogen peroxide.