Logwashers assist in breaking down heavy plastic clay, conglomerates, and certain types of soft stone that may be present in ore, crushed rock, or gravel. Scrubbing is accomplished by the severe abrading action of hard-wearing shoes mounted on the twin log shafts. The log shafts rotate in opposite directions. The two log shafts are timed to obtain an overlap of the paddle shoes for maximum scrubbing action. Log Washer feed material should be prescreened to insure the top size does not exceed a nominal 75mm (3”) and to eliminate all material minus 6mm (1/4”).