This installation is particularly suitable for cleaning a knife holder. The EDMR knife holder washers are made of solid stainless steel sheets and sections and is placed on adjustable feet. The washing tunnel is provided with hinged doors. If a door is opened during cleaning, the installation stops immediately. The knife holders are transported through the system by a plastic transport chain. The rinse arches are provided with a large number of plastic click-nozzles. The EDMR knife holder washers are suitable for knife holders with maximum dimensions of 380 x 100 x 500 mm (lxwxh).