2000L Capacity 2-Layer Co-Extrusion IBC Blow Moulding Machine with 500kg/h Plasticizing Capacity for HDPE Hollow Containers

Our Huayu 2000L two-layer accumulator extrusion blow moulding machine is specially engineered for the mass production of large hollow plastic products, including HDPE water storage tanks, chemical liquid containers, waste liquid barrels, and bulk packaging vessels with a maximum capacity of 2000 litres. This model belongs to our mature HYBM series, which has been optimized and upgraded for years to meet strict demands from domestic and overseas customers focusing on medium and large-volume hollow blow moulding. It adopts a two-layer co-extrusion structure, allowing producers to configure different raw material formulas for the inner and outer layers separately, bringing greater flexibility for functional product design.

The two-layer co-extrusion system is one of the core advantages of this unit. Two independent extruders feed molten plastic into the accumulator head at a precisely controlled speed. Operators can choose different materials for inner and outer layers as required. For example, the inner layer can use food-grade raw materials for drinking water tanks, while the outer layer uses anti-UV, anti-ageing HDPE to resist outdoor sunlight, rain and temperature changes. For chemical container production, the inner layer can adopt corrosion-resistant resin to hold acid, alkali and other chemical reagents safely, and the outer layer provides high mechanical strength to avoid cracking during transport and stacking. Compared with single-layer blow moulding equipment, the two-layer structure greatly improves product performance without excessive material cost growth, helping buyers expand their product portfolio and win more orders in the plastic packaging market.

This machine uses an advanced servo hydraulic drive system, which is far more energy-efficient than traditional constant pump hydraulic circuits. The servo system adjusts oil output dynamically according to actual working actions of clamping, mould shifting, head lifting and parison extrusion. It reduces idle power consumption obviously, lowers heat generation of hydraulic oil and extends the service life of hydraulic components. The clamping unit adopts heavy-duty linear guide rails and high-rigidity frame structure. The clamping force is evenly distributed on the mould surface, so the mould can be closed tightly and stably even for large 2000L tank moulds. This design effectively eliminates flash, guarantees uniform wall thickness of finished tanks, and reduces later trimming workload. The mould opening and closing speed can be adjusted in multiple segments, which protects moulds from impact and cuts down maintenance frequency.

Our independent accumulator die head is precision processed and heat treated. The flow channel inside is smoothly polished to avoid material stagnation and carbon accumulation. The wall thickness control system supports continuous online adjustment during parison extrusion. Operators can set different thickness values at different positions of the parison through the touch screen interface, so the final tank has reasonable thickness distribution: thicker at the bottom and shoulder where stress concentrates, and moderately thin at the cylinder part. This balanced design makes the tank able to bear full liquid weight and stacking pressure while saving raw materials. The die head supports fast colour change and resin switching, which is very suitable for factories that produce multiple tank colours and specifications in one workshop.

The whole production line features full automatic workflow: raw material feeding, plastic melting and plasticization, accumulator material storage, parison discharging, mould clamping, blowing, cooling, mould opening and finished product ejection. After parameter setting, the machine runs continuously with little manual intervention. We equip the unit with a stable electrical control system with clear, user-friendly touch screen operation. All running parameters, production counts, alarm records and recipe storage functions are integrated on the interface. Multiple sets of product recipes can be saved and recalled with one click, which shortens trial run time when switching between different moulds. Real-time fault alarm prompts help technicians locate abnormal points quickly, reducing unexpected downtime.

We pay high attention to safety and stability in overall structure design. Protective safety doors, emergency stop buttons and pressure limit protection are installed on key positions. When abnormal pressure, position deviation or door opening occurs during operation, the machine will stop immediately to protect operators and equipment. All pipelines, wiring and connection parts are arranged neatly for easy inspection and maintenance. Main wearing parts are standard and easy to source locally for most overseas customers.

This 2000L two-layer blow moulding machine is widely welcomed by manufacturers for water tanks, chemical containers and agricultural plastic vessels. It can work steadily for long shifts under harsh workshop environments. We provide complete after-sales support including installation guidance, on-site commissioning, operator training, operation manuals and long-term spare parts supply. Our technical team can also customize auxiliary devices according to customer requirements, such as automatic trimming robots, material drying systems, waste crushing and recycling units.

If you plan to produce large hollow plastic containers with high performance requirements, this Huayu 2000L 2-layer blow moulding machine is a reliable investment. It balances stable output, energy saving, flexible formula matching and low running cost, helping your factory produce qualified large plastic tanks and improve market competitiveness.