The patent-pending mounting plate on the new Duo-Spring secondary tensioner developed by ASGCO Manufacturing’s Complete Conveyor Solutions division allows the cleaning blade to be spring tensioned in either a pull-up or push-up position. The two mounting configuration options leave extra clearance above or below the bracket where necessary; yet provide equal tensioning force in either configuration. An integrated dust shield keeps dust and fugitive material within the conveyor chute. The tensioner is available on both the Razor-Back and New Wave III cleaning systems.