Tension roller is to make the drive act on the torsional distance between the roller surface and the strip into strip tension, the number of tension rollers and layout form depends on the maximum tensile force required for the strip and site conditions. Tension roller group is generally divided into inlet tension roller group and outlet tension roller group, in addition can be driven by the motor or hydraulic motor alone or can be interconnected by gear differential device, but no matter how different the drive device, its fundamental purpose is to create the speed difference between the inlet belt and the outlet belt, resulting in the desired tension to drive.

       In the finishing unit, the quantitative control of tension plays an important role in the finishing effect. Through practice, it is proved that friction, elastic plasticity force and centrifugal force work together to form a tension, the rigid roller body long-term work easy to produce deformation, but carbon fiber roller body to avoid these defects. Wuxi Zhi on the new materials technology Co. , Ltd. is the production and design of carbon fiber rollers for many years, mature technology, experienced, long-term and domestic well-known enterprises leading company cooperation.