Paper-Plastic/Tetra Pak Separation and Recycling Machine

The core function of the paper-plastic/Tetra Pak separation and recycling machine is to effectively separate paper fibres, plastic, and aluminium layers from waste Tetra Pak cartons, paper-plastic composite packaging, and similar materials, thereby enabling resource reuse. Compared to traditional landfill or incineration methods, this type of equipment is more in line with current environmental recycling trends; it not only reduces the cost of processing waste packaging but also increases the recycling value of pulp and plastic. It is particularly suitable for recycling plants, paper mills, and environmental treatment companies.

Working Principle and Core Structure of Paper-Plastic Separation Equipment

The paper-plastic separation and recycling production line is primarily designed to process multi-layer composite packaging materials such as milk cartons, beverage cartons, and Tetra Pak cartons. These materials are typically composed of paper fibres, PE plastic, and a small amount of aluminium foil; whilst traditional shredding makes direct sorting difficult, the paper-plastic separator achieves separation through a combination of wet pulping and mechanical screening.

Paper-Plastic/Tetra Pak Separation and Recycling Machine

The complete system generally comprises a hydraulic feeder, a hydraulic pulper, a vibrating screen, a screw conveyor, dewatering equipment, and a plastic collection system. During production, waste packaging first enters the hydraulic pulping system. Under high-speed rotation and the impact of water flow, the paper fibres are rapidly dispersed to form pulp, whilst the plastic and aluminium layers are retained due to their structural differences. They are then subjected to secondary separation via the screening system.

The hydro-pulper is the core component of the entire production line. The rotor speed, pulping concentration, and processing time of the equipment directly affect the pulp recovery rate. In actual production, high-quality equipment typically achieves a paper fibre recovery rate of over 90%, whilst effectively reducing residual plastic fibres.

WOperational Characteristics and Practical Value

Compared to traditional manual disassembly methods, automated paper-plastic separation production lines offer more consistent processing efficiency. Small to medium-sized production lines can process several hundred kilograms to several tonnes of composite packaging waste per hour, making them suitable for continuous operation.

The greatest value of such equipment lies not only in ‘separation’ but also in enhancing the efficiency of resource utilisation downstream. The processed pulp can be reused in the production of recycled paper products, whilst the separated plastic-aluminium mixture can be further processed into plastic pellets or recycled into aluminium-plastic composite panels. For recycling enterprises, the stability of the equipment is often more important than mere output, as excessive impurity levels in the pulp directly affect the quality of the subsequent recycled paper.

Furthermore, the equipment’s water consumption and wastewater recycling capacity are also critical. Most mature paper-plastic separation systems are now equipped with water recycling systems, which not only reduce wastewater discharge during production but also lower long-term operating costs.

As global demands for the recycling of composite packaging increase, low-value waste such as Tetra Pak cartons is gradually being transformed into reusable resources. Particularly in regions such as Southeast Asia, the Middle East, and South America, the recycled paper industry’s demand for waste pulp continues to grow, driving the expansion of the paper-plastic separation equipment market. What truly determines profitability is no longer the volume of waste processed, but rather the consistent recovery of high-quality pulp and reusable plastics.