3-die Thread rolling machine UM-3DL 3-die thread rolling machine is specially designed for tubular processing. Equilateral triangle supports running to assure the roundness. 3-die thread rolling machine is with equilateral triangle supports the thread rolling for improving roundness, concentricity and vertical degree. UM-3DL thread rolling machine is driving by hydraulic unit: Featuring in easy operation and powerful pressure. UM-3DL is set with 4 speed transmission gear with grinding shape teeth: Featuring in noise-free, durable and precise transmission. Particularly applied to the tubular thread rolling processing, such as oil connectors, bicycle, automobile and motor vehicle parts, radiating pipe etc.