The machine is central controlled by PLC program controller, and equipped with touch screen man-machine interface. The unwinding, traction,rewinding devices are driven by variable frequency motors and inverters. The PLC controls the tension during the running process. It is easy to using auto stroboscope to observe the printing patterns. It can be press the button to remember the position of any visual defects, and the machine will stop when reverses to the defect position. It is equipped an advanced photoelectrical automatic correction controller. It is suitable for rewinding and inspecting BOPP, CPP, OPP and other kinds of plastic materials.