Extra heavy-duty CLO and CLOS Trough Screw Conveyors are manufactured from carbon steel with suitable surface finishing (in general hot galvanised fabricated parts). Depending on the application, CLO / CLOS consist of troughs having different shapes and configuration. They are equipped with an inlet and an outlet spout, an end plate at the drive end for fitting of an end bearing assembly, an end plate for trough closure at the opposite trough end, shaftless extra heavy-duty helicoid screw flighting flanged on the shaft of the only end bearing assembly. The screw slides on replaceable bars fixed on the trough bottom. The shearing effect between screw and bottom bars generated during conveying helps shredding fibrous materials. Furthermore, CLO / CLOS Screw Conveyors are equipped with a gear motor appropriate for the application.