它是一种特制的收卷、放卷轴,也就是经过高压充气后表面可以突起的轴，放气后表面部份迅速缩回的轴叫做气胀轴。
这种轴克服了传统气胀轴单一气囊所存在的问题。
This shaft have overcome the problems which a single air sac of a traditional one existence.
支持多种规格气胀轴随意互换，支持计米、计数，缺料停车。
It's suitable for different kinds size of rewinding core. with meter counter , number counter and less material stop machine function.
放卷、收卷均由气胀轴支撑料卷，更换快捷、撑力均匀、定心准确。
The unwinding equipment and rewinding equipment all adopt air-expansion shaft to bear roll materials, assuring fast replacement, even supporting force and accurate centering.
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