The left-wound and right-wound spirals are fitted tightly together alternately and jointed with straight rods. A4 uses 4 rods for one spiral to joint. A3 uses 3 rods for one spiral to joint.
● Since the surface is flat and smooth, the belts can carry small items and unstable products.
● The allowable tension is high, so that heavy load can be transported.
● The belt strength against pressure is high, so that the belts can be used for processing under pressure.
● The belts can be used for textile products refining and cleaning process.
● The belts can be used at high temperature.