The Advanced Multilayer Solution: Huayu 2000L 7-Layer Blowing Machine

Pushing the boundaries of industrial container performance, the Weifang Huayu 2000L 7-Layer Co-extrusion Blow Molding Machine is engineered for applications demanding a sophisticated blend of high-volume production and advanced functional properties. This robust system provides the perfect platform to integrate multiple material functionalities—including superior barriers, enhanced strength, and high recycled content—for large-scale chemical, agricultural, and specialty liquid packaging.

The 7-layer configuration offers remarkable design flexibility. Engineers can create optimized structures such as: Virgin Outer / Regrind / Adhesive / Barrier (EVOH) / Adhesive / Regrind / Virgin Inner. This symmetrical structure allows for the strategic placement of high percentages of post-industrial regrind in the core layers, sandwiched between high-performance functional skins and barriers. The result is a container that meets stringent performance specifications for chemical resistance, moisture barrier, or UV protection, while dramatically reducing raw material costs and environmental footprint. The additional layer (compared to 5 or 6) provides greater precision in balancing cost, performance, and sustainability.

Building a perfectly balanced 7-layer parison for a 2000L container requires exceptional engineering. Huayu's machine features a high-precision, modular 7-layer co-extrusion die head designed for optimal flow distribution and minimal interfacial turbulence. Each of the seven extruders is independently controlled by servo drives, with specialized screws designed for their specific material (virgin, regrind, adhesive, or barrier resin). The robust, high-tonnage clamping unit ensures flawless part formation at this large scale, while the advanced industrial PC control system provides comprehensive monitoring of every layer's parameters, guaranteeing consistency across long production runs.

Sustainable Packaging with High Regrind Content