A core application of the AUMUND BPB Arched Plate Conveyor is to discharge from hoppers materials such as clay, marl, natural or FGD gypsum, anhydrite and pozzolan, when they have a high moisture content and are sticky. Another key function of the heavy-duty versions of the Arched Plate Conveyor, BPB-S or BPB-SF, is to receive as-mined raw material and feed to a primary crusher at the quarry.