Alpha Marathon bubble chambers are designed to provide improved cooling efficiency while providing a protective shroud around the frost line.
Bubble chamber features a radial set of fins to accommodate changes in bubble diameter as changes in the blown film process warrant.
The shroud offers access points to the bubble as well as a visible sight line.
Bubble chambers are designed to fit Alpha Marathon air rings and can be retrofit to most air rings.
The bubble chamber is positioned on top of the air ring.
Manual adjustment of the iris to accommodate changes in bubble diameter.