The ABA co-extrusion blown film machine uses a double-screw design, where the main screw supplies material for the inner and outer layers, and the auxiliary screw supplies material for the middle layer. In the field of daily-use plastic film processing, this type of co-extrusion machine has proven its technical maturity and reliability. However, in the area of multi-layer co-extrusion, particularly for industrial-grade films, traditional three-layer or higher-layer processing machinery has posed certain technical and financial barriers. Many processing companies face these challenges when expanding from household film products to large-scale industrial films.

Co-extrusion A+B+A combination blown film machine, whether it is the production of HDPE materials or LDPE materials and LLDPE materials, has unique characteristics. The physical strength of the films was improved by multi-layer co-extrusion.