Oversize particles spiraling through that screen cylinder are ejected by means of its open end to gravity discharge by way of a secondary outlet for disposal or maybe reprocessing. On-size particles passing throughout the screen gravity discharge through a new flanged outlet to any downstream procedure. Mounted on a heavy-duty cell frame, the machine can always be rolled between processing lines along with wash down stations as essential. A fail-safe interlock method with multiple, non-interchangeable keys prevents inadvertent operation on the electrical system when the hinged conclusion cover, screen access door or even feed screw access plate is definitely open. The unit is capable of sifting dry or moist element, mineral, food, dairy or pharmaceutical products including those containing smooth agglomerates, at rates to 35 tn/hr. It is available constructed with material contact surfaces of 304 Hand Tools or 316 stainless, or in all-stainless steel finished to sanitary or industrial requirements, with explosion proof electrical methods, including ATEX compliant