Continuous batch washer especially for processing Medical Devices (pat. pending) first continuous batch washer with hygienic certificate for complying to the European Medical Device Directive closed water recovery system without tanks ("SL-principle"), reg. pat., for best hygiene conditions and lowest consumption figures excellent wash quality for all sorts of linen and degrees of soiling, especially designed for processing e.g. OR-items for highest hygienic requirements with special programs to meet hygienic regulations washing in standing baths and rinsing in counterflow high flexibitlity even for frequent changes of linen categories high mechanical action and reliable transport behaviour due to the eccentric, wash board shaped Archimedian helix (reg. pat.) adjustable drum rotation speed in order to vary the mechanical action very low energy consumption hourly capacity up to 2000 kg/h