An enclosed, rectangular cross – section, made of steel casing is furnished with an endless chain equipped with flights. The lower chain section moves along the bottom of the steel casing and conveys the materials. The return part of the chain is guided along the central rail. The chain runs around a sprocket at the outlet end and around and idler at the inlet end. The material and chain travel along at a uniform speed. The product is dropped through the chain at the outlet and flows out of the conveyor. The design of the chain lets several inlets, which can be arranged along the entire length of the conveyor. It is also possible to install outlet gates, which can be manually and remotely controlled.