Adopt stepper motor ,matched with the simple operation of micro-computer and the number controller with the numerical key,able to change various length of transformation,economical manpower material resources.the hair side waste can be sliced antomatically.The finished product completes only in once,insuring the stable quality,boosting the competitiveness.The white bag can be worked in double line.Itis equipped with the device which can colled and send the final products in piles.line.It is equipped with the device which can collect qand send the final products in piles.The signed photoelectric eye can track bag printing quality.