This machine is used to straighten the metal rod bar. The rollers are interlaced, catty-cornered and symmetrical distributed, when the rod bar is notched in, it will be rotated forward and bended repeatedly to realize straightening. The machine has compact construction, straightens the metal rod rapidly and precision. rod straightening and polishing machineproduct diameter(mm)4∼88∼2020∼50product max. shear strength(N/m3)800∼1200700450straighten speed(m/min)252015main motor power4611