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The extruder barrel is made of advanced aluminum alloy, offering high thermal efficiency and a long service life; however, the extruder’s barrel employs air cooling to automatically regulate temperature.

The air ring serves to cool the film bubble extruded from the die and blown into shape, with air as the cooling medium. At the same time, the airflow provides some support to the film bubble. The air ring can significantly increase the production capacity of the extrusion‑blowing unit.

A method for winding continuous products such as films, tapes, monofilaments, hoses, and insulated wires onto reels.