A Film Blowing Machine is used to make polyethylene into plastic film. This may be laminating film, packing film, agricultural covering film, bags or film for textiles and clothing, and other packing material.
Technical information
Parts include: screw and barrel, motor, inverter, heaters, die head, winder, and tower. The main motor may have frequency control of motor speed to improve speed regulation and save electricity. The screw and material barrel may be made from a nitrogen-treated chromium-molybdenum-aluminum alloy.
References
Film blowing machine Wikipedia(Text) CC BY-SA