In parallel endlessly revolving conveyor chain flights are fixed. These push the material to be conveyed within a shaft on the floor in front of them. Scrape conveyors have several advantages compared to belt conveyors, such as no adhesion of the material to be conveyed on the ground, because the flights constantly scrape off the floor. The conveying direction can be selected up to 50 ° horizontal and ascending. Scrap conveyors can be used in several areas such as wood, ash, hot granules or slags.