Fully Automatic 3-Layer Extrusion Blow Moulding Machine for 2000L HDPE Water Storage Tank Production

The Huayu 2000L 3-Layer Extrusion Blow Moulding Machine is a heavy-duty industrial plastic molding equipment tailored for large-capacity hollow plastic product manufacturing. Developed for stable and high-efficiency production of 2000L HDPE water storage tanks, chemical liquid barrels, and large industrial plastic containers, this three-layer co-extrusion blow molding machine upgrades traditional single-layer molding technology to deliver higher product strength, better barrier performance, and longer service life. It serves as ideal core production equipment for plastic product factories focusing on household water storage, industrial chemical packaging, agricultural water conservation, and environmental protection storage facilities, fully meeting diversified and high-standard production demands in the global plastic processing industry.

The core advantage of this equipment lies in its professional three-layer co-extrusion molding system, which realizes synchronous, stable and uniform extrusion of inner, middle and outer material layers. The inner layer adopts high-purity, non-toxic HDPE raw materials, ensuring hygienic and safe storage of drinking water and daily liquids with no peculiar smell or precipitation. The middle layer supports the addition of modified reinforced materials or qualified recycled materials, effectively improving the product’s impact resistance and structural toughness while reasonably controlling production costs. The outer layer uses high-density anti-aging and UV-resistant raw materials, which can resist outdoor oxidation, weather erosion and external mechanical collision, enabling finished products to adapt to long-term indoor and outdoor use environments. This layered composite structure perfectly solves the common shortcomings of single-layer plastic products, such as weak pressure resistance, poor aging resistance and low structural stability.

In terms of intelligent control and driving performance, the machine is equipped with a mature industrial PLC intelligent control system and high-precision wall thickness automatic controller. The system features a user-friendly visual operation interface, one-key parameter setting and real-time data monitoring functions. It can automatically adjust extrusion volume and molding parameters according to product specifications, effectively ensuring uniform wall thickness of each finished product and greatly reducing defective rates. The whole machine is matched with an energy-saving servo hydraulic drive system, which outputs power accurately according to actual production loads. Compared with conventional constant-power hydraulic equipment, it significantly reduces idle energy consumption, achieving outstanding energy-saving effects while maintaining stable and powerful clamping and extrusion power.

Mechanically, the equipment adopts an integral thickened steel frame structure with strict stress relief treatment, which avoids vibration and structural deformation during long-term continuous high-load operation. The high-rigidity precision clamping mechanism provides stable and uniform clamping force, ensuring tight mold closing, no flash on product edges and smooth molding appearance. With excellent continuous production capacity, the machine can operate stably for 24 hours, with stable output of standard 2000L large plastic tanks. It supports flexible replacement of molds to produce multiple specifications of large hollow products, bringing high production flexibility for manufacturers.

In terms of safety and maintenance, the machine is equipped with complete protective devices including emergency stop protection, mold clamping anti-pinch protection and overpressure overload protection, fully complying with international industrial safety specifications. The standardized modular structure simplifies daily inspection, maintenance and component replacement, lowering later operation and maintenance costs. With reliable performance, stable operation and excellent finished product quality, the Huayu 2000L three-layer blow moulding machine has become a highly cost-effective and trustworthy choice for global medium and large plastic product processing enterprises

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