Abstract: A multi-directional tumbling cylinder for use in concentrating or cleaning of products such as dross, salt cake, slag, carbon blocks, both, or cast or molded metal pieces, wherein the tumbling cylinder is of length, the cylinder mounted upon a base, is rotated through the operations of a motor, with the cylinder capable of turning in a clockwise or counterclockwise direction. The cylinder has an intake end and an outlet, and a series of liner segments disposed therein, that interconnect together to form an inner cylinder, and the segments have a series of rifling provided upon the inner surface, and series of vanes formed upon their outer surfaces, with the riffling and vanes having sloped lateral edges, at select degrees, to provide for controlled movement and volumetric flow of product being processed, either towards the outlet, tumbled within its midsection, moving product back towards the inlet, for regulated processing and cleaning of such product.