SUNPASS efficient small disc ring machine makes mass production of metal inner and outer rings possible. It is driven by a pair of rolling wheels, and the inner and outer diameters of the inner and outer metal rings are determined by adjusting the position of the main wheel and two auxiliary wheels. Regardless of the metal rings of various specifications, as long as the first size is determined, they can work continuously, and mass-produce inner and outer rings of various specifications. It is suitable for a certain number of metal inner and outer rings with a sealing surface less than 30. Since the metal wire rod passes through the roller The rolling pressure of the pressure wheel makes the ring surface of the metal inner and outer rings after forming smooth and of high quality.