Conveyor screws are manufactured according to the case of application and customer requests. They can be manufactured in diameters of 100 - 1000 mm and lengths of 1 - 10 m. In general, normal steels, high-grade steels or even wearresistant manganese steels are used to produce the screws. The image shows a pipe conveyor screw in special execution, made of material 1.4301, for filling potato starch. The outputs when conveying sawdust range from 30 - 200 m³/h.