This machine is suitable for cutting big rolling packaging materials such as paper, paper-plastic, multicolor laminated material, etc. It adopts servo motor (or step motor) for controlling constant-length cutting. It adopts pneumatic, photoelectric sensor for controlling transmission system, with photo, electric, gas together, it has the functions of easy operation , high precision, good stability, low noise. (Pneumatic auto loading device is optional) This machine has the functions of the frequency converter timing device, auto-matic counting, stop working by alarm and tension adjustment by magnetic powder or manual with friction unit.