Product Description:Continous cold rolled screw blades ,without welding, and we can produce any size of helical blade with different inner diameter, outer diameter, pitch, and different lengths for harvester on the request of customers.

Processing range:Outer diameter 800-35mm;inner diameter 12-750mm;pitch 30-800mm;thickness 1.5-8mm; any length according to the customer's need .

Application :the products are mainly for the wheat or rice combine havester , corn threshing machine, feed processing machinery , screw conveyer , cement machineries , mining machinery , planting machine(earth auger, drilling machine), snow plough(snow blower) and any other machine's transmission  devices .