Abstract: A high-performance chain scraper conveyor is equipped with symmetrical channel belts and with a chain conveyor which can turn around corresponding axles so that in combination with the corresponding shape of the channel belts a considerably longer life and higher capacity can be achieved. The ends of the individual channel belts are equipped with overlap tongues and abutting areas across the entire width of the channel diagonally to the transport direction so that the result is an extremely quiet, highly efficient operation. The unit, therefore, is clearly more economical. Channel and herringbone chain conveyors are fully symmetrical over three axles. This means they can be turned separately or together and have at least twice the life of customary chain scraper conveyors. FIG. 3 is to be used for publication.