The machine is in an overall welding and overall processing structure, and the main parts of machine are all analyzed by ANSyS finite element analysis software, which has ensured the reliability of machine and the precision of entire machine. The CNC control system adopts Netherand DELEM, ltalian ESA, or Swiss CYBELEC products, which can achieve the functions of graphic programming for bending angle, compensation for angle amendment, automatic calculation also adjustment of bending pressure, automatic calculation of compensation for workbench distortion, extending length of workpieces bending pressure for bottom bending,open distance, and automatic withdrawal of rear stopper, etc.