Turnover Conveyors are available in a variety of models. All of the units have the basic function of flipping the product over, top to bottom. The typical use is to convert a stream from "cover on top" to "cover on the bottom". All models must accept the products in a single copy stream to operate. The products are then delivered in a single copy fashion, which is better suited to demographic/custodial control applications. The flip over model is the only model that inverts the product from head to foot. When converting from turnover to straight through, the belt must be removed and untwisted.