Multilayer Co-extrusion 2000L 14 Layer Blow Molding Machine for Chemical IBC Container

Overview

Huayu, a professional manufacturer of large extrusion blow molding equipment, has focused on the research and production of multi-layer co-extrusion blow molding machines for decades. Our equipment covers a wide product range from small drums to ultra-large industrial tanks, including the flagship 2000L 14-layer model, which is built for high-barrier industrial container production. We combine mature co-extrusion principles with independent structural optimization, targeting clients who need reliable anti-permeation, corrosion-resistant plastic tanks for chemical, agrochemical and special liquid storage. All machines adopt accumulator die head structure, supporting stable compound extrusion of up to 14 functional layers, and can produce seamless hollow containers with strict wall thickness requirements. The whole line integrates extrusion, parison control, clamping, blowing, cooling and automatic trimming, realizing continuous automatic production with low manual intervention.

Core Multi-layer Co-extrusion Technology

The 14-layer co-extrusion system is our most competitive technical highlight. Different functional resins are extruded separately and merged evenly inside the precision die head, forming a layered parison with clear interface and stable adhesion. Each layer undertakes an independent task: the inner contact layer meets food-grade or chemical-resistant requirements; the middle barrier layer blocks oxygen, solvent vapor and volatile substance penetration; adhesive layers connect different materials to avoid delamination; recycled material layers control raw material cost reasonably; outer structural layers provide impact resistance, UV resistance and outdoor weather resistance. Compared with single-layer and conventional three/five-layer machines, 14-layer configuration allows more flexible material matching, greatly reduces the permeation rate of sensitive chemicals, and extends the service life of finished IBC tanks and storage vessels. Our self-developed screw and barrel assembly ensures uniform plasticization, stable melt temperature and less material degradation during long-cycle production.

Control and Mechanical Performance

Our blow molding machines are equipped with a touch-screen PLC control system, supporting recipe storage, one-click parameter switching and real-time operating status monitoring. The wall thickness controller tracks the parison curve dynamically, adjusting material output at every section to achieve uniform wall distribution, reducing material waste and improving product consistency. The servo hydraulic clamping system delivers large clamping force with low noise and lower energy consumption, and heavy-duty linear guide rails guarantee smooth and stable mold movement under long-time heavy load. The integrated hydraulic station adopts optimized oil circuit layout, with good heat dissipation and stable pressure output. Key moving parts are processed by high-precision CNC equipment, heat-treated and wear-resistant, which effectively lowers failure frequency and extends the service cycle of the whole machine. Safety interlock protection is set for clamping, blowing and feeding links to avoid misoperation risks.

Application Scenarios and Customization

Huayu multi-layer blow molding equipment is widely used to produce IBC intermediate bulk containers, chemical storage tanks, solvent holding vessels, fertilizer containers and special liquid packaging tanks. The 2000L 14-layer model is especially suitable for customers with strict anti-leakage and high-barrier demands, for scenarios where ordinary single-layer tanks cannot meet long-term storage requirements. We provide full customization service: adjusting accumulator capacity, matching different mold sizes, modifying extruder combinations, and adding auxiliary units such as automatic deflashing, leak testing and material feeding systems according to customers’ raw material types, product standards and factory layout. Our engineering team communicates with clients at the early stage of project design, proposes matched production solutions and tests raw material formula on site before delivery.

Quality, Certification and After-sales Support

All Huayu blow molding machines are manufactured under standardized quality management, with complete testing procedures before shipment. We have obtained CE and ISO certifications, and our products have been exported to dozens of countries across Asia, Europe, Africa and Latin America. We provide complete after-sales packages including installation guidance, on-site commissioning, operator training and long-term technical consultation. Spare parts supply channel is kept efficient to minimize production downtime. We keep upgrading our machine structure and control logic based on feedback from global users, and keep optimizing energy efficiency and operation convenience. We aim to build stable long-term partnerships with container manufacturers, helping them produce high-value multi-layer tanks and gain advantages in the high-barrier packaging market.