It has four
parts, and each part contain two parts of let-off and wind-up.
The shaft center can be demounted with frame to support. Each
let-off and wind-up frames is supported by foot wheel on its
guide rail separately. The frame can be moved to rectify the
unit. The wind-up shaft is mounted with converter motor which
speed can be controlled automatically by output rubber sheet
tension and electric system. The tension is adjusted by cylinder
,and the tension can control the inlet air pressure in the range
of 0.**0.4MPA according to the product features.
