Huayu 220L 2-Layer Blow Molding Machine for Double-Ring Plastic Barrel

Huayu 220L two-layer double-ring drum blow molding machine is a high-efficiency and stable hollow molding equipment specially developed for mass production of 220-liter plastic double-ring barrels. This machine adopts a two-layer co-extrusion structure, which can separately control the formula of the inner and outer layers of the plastic product. The outer layer can achieve good wear resistance, anti-aging and surface gloss, while the inner layer has excellent chemical resistance to adapt to the packaging of various chemical raw materials, liquid solvents and industrial oils. It is widely used in chemical industry, pesticide, food raw material storage, logistics transportation and other industries, helping manufacturers produce high-quality 220L double-ring plastic barrels with stable wall thickness.

The extrusion system of this blow molding machine is optimized for two-layer co-extrusion. The screw and barrel are made of wear-resistant alloy material, with uniform plasticizing effect and low energy consumption during continuous long-time operation. The material melting is stable, which effectively avoids material decomposition and color difference of finished barrels. The double-layer co-extrusion die head is precisely processed, ensuring the uniform merging of two layers of plastic melt, no delamination and no bubble inside the barrel body. The die head can be fine-tuned according to product requirements to adjust the material distribution of inner and outer layers, so customers can freely adjust the proportion of two layers to meet different product cost and performance targets.

For wall thickness control, the machine is equipped with an advanced wall thickness controller. It can realize multi-point real-time monitoring and automatic adjustment of the parison during extrusion. The parison follows the preset curve to change the thickness, which ensures that every part of the 220L double-ring barrel, including the barrel body, ring position and bottom, maintains consistent wall thickness. It effectively reduces product waste and improves the compression resistance and drop resistance of finished barrels. Even during continuous mass production, the consistency of each product can be well guaranteed, greatly lowering the reject rate.

The clamping unit adopts a robust hydraulic clamping structure with large clamping force and high clamping rigidity. It can firmly lock the mold during blow molding, preventing flash and deformation of the barrel edge under blowing pressure. The mold opening and closing movement is smooth and fast, shortening the single forming cycle and improving the hourly output. The machine can be matched with customized molds for 220L double-ring barrels according to customers’ demands. The mold cavity is precision processed, and the surface polishing treatment ensures the smooth surface of the plastic barrel, with clear and complete double-ring structure.

The whole machine control system has a user-friendly operation interface. Operators can set and save production parameters such as extrusion speed, blowing pressure, mold clamping time and parison thickness curve on the screen. The system has complete fault alarm and record functions. Once abnormal pressure, temperature or action occurs, the system will give timely prompts, which is convenient for maintenance personnel to quickly locate and solve problems. The electrical and hydraulic components are selected from reliable brands, with stable performance and long service life, suitable for long-term uninterrupted factory production.

This Huayu 220L two-layer double-ring drum blow molding machine focuses on production stability and product quality. Compared with single-layer barrel equipment, two-layer co-extrusion technology brings more flexible material matching. Manufacturers can use cost-effective raw materials for the inner layer and high-performance materials for the outer layer, balancing product quality and production cost. Finished 220L double-ring barrels produced by this machine have strong anti-drop performance, good pressure bearing capacity and excellent barrier property, meeting international standard requirements for industrial plastic packaging barrels.

Huayu provides full set of after-sales support for this blow molding machine. We supply machine installation guidance, on-site commissioning, operator training and long-term technical consultation. Our technical team can help customers optimize production processes and solve problems in barrel molding. Spare parts support is available globally to minimize downtime for customers. Whether you are expanding production lines or investing in new plastic barrel projects, this 220L two-layer double-ring drum blow molding machine is a reliable choice for industrial plastic packaging manufacturing.