Steel bar bender is mainly used for processing steel bars used in large construction projects such as bridges, tunnels, culverts, hydropower stations, and subway projects. Angle iron, flat iron, round pipe, channel steel, square steel, etc. can be processed after changing the rollers. This machine is easy to operate, easy to maintain, efficient, accurate in arc, and shaped in one time. The use of prestress-relief bending solves the break caused by the inherent tension after welding, which greatly improves the production efficiency.