The horizontal centrifuge has been designed to wash high contaminated medium or big flakes of film or other materials which come from a primary shredder or from a grinder. The centrifugal effect is based on mechanical friction combined with the use of a big quantity of water in order to guarantee a very good cleaning effect of the product. For less contaminated materials this machine can be used as 'dry separator”. The heavy duty inner rotor turns at high speed, and its dedicated geometry makes it possible to avoid blockings with medium-size pieces too. Contaminants and dirty water are then ejected through a holed screen and collected in the discharging stainless steel hopper.