straightening machineIt is equipment for straightening metal profiles, bars, pipes, wires, etc. The straightening machine squeezes the bars and other materials through straightening rollers to change their straightness. There are usually two rows of straightening rollers, with varying quantities. There are also two roll straightening machines that rely on the angle changes of two rolls (concave in the middle, hyperbolic roll) to straighten materials of different diameters. The main types include pressure straightening machines, balance roll straightening machines, shoe roll straightening machines, rotary bending straightening machines, and so on.