5.It adopts air shaft to fix film roll and it is quick and solid.
The electromagnetic tension system can control the tension quickly
and conveniently. It is equipped with film roll moving system which
can move the film roll in place and avoid film wrinkling without
stopping the machine, so it can improve the working efficiency and
quality of products. It is convenient, quick, economic and labor-saving to use the electric hoist to lift the film roll group.