Thickened machine body for excellent wear resistance and durability. It adopts quenched forged fine steel gears and a pure copper motor with strong power for long-lasting service. The machine can operate continuously without burnout under high temperature, featuring a long service life. The high-temperature quenched short-stroke gears are highly durable. The thickened wheel disc is made of fine steel, sturdy and durable to boost working efficiency. Equipped with thickened baffles, it can bend multiple rebars at one time to improve productivity. The CNC encoder ensures precise bending angles with easy operation and long service life. The foot switch delivers sensitive control with automatic and rapid return stroke.