The Evotec U-Flow Conveyor return conveyor belts improve workflow and create an efficient solution for handling sheet metal parts without the need for an additional operator. The use of a return conveyor on a Evotec deburring and finishing machine means that products already finished on one side are returned to the operator on the infeed side of the machine. If desired, the operator can put the products through the machine again to finish the second side of the product as well. Or he can stack the products so that they can proceed to the next production step.