1、Polygonal double lip high pressure air ring is an important part in the plastic film production line. It corrects the abnormal thickness of the local position of the film bubble in real time by automatically changing the size of the specific position of the die head outlet, so as to improve the quality of the product.

2、During the film blowing process, the thickness of the film bubble may undergo local abnormal changes due to various factors, such as uneven melt fluidity, temperature changes, and unstable air flow in the wind ring. These thickness changes may lead to a decline in product quality, such as uneven film thickness, defects, etc.

3、Changes in membrane thickness can be detected and corrected in real time by using an air ring that automatically locally changes the size of a specific position at the die outlet.

4、Film blowing machine polygonal double air outlet air ring is usually equipped with sensors and control systems that automatically adjust the size of the die head outlet based on the detected thickness change signal, so that the membrane bubble remains uniform across the width.