Industrial Grade Attrition System allows the primary screening and high attrition washing of clay-bound material through a combination of log-washer and high frequency screening technology. The Attrition System allows the option of removal of the sand fraction prior to entering the log-washer. The Attrition System not only removes the sand fractions by means of spray-bars but also de-waters the aggregate ready for further screening. Industrial Grade Attrition System is provided with optional integrated trash screen at the rear end for applications where the removal of lightweight contaminants is required.