In the multi-layer blown film line, fitted with a patented blow head and a double-deck cooling ring, molten plastic granulate is blown into a film tube.

A cooling flow of air at and inside the film tube cools the product while retaining the required shape until passing along ten meters vertically, it is rerouted and folded. The mono and composite films are winded into large coils by rollers and then transferred to the packaging industry for further processing. In this process, KKT chillers cools the rollers, the extruders and the air stream.