Plastic waste management is no longer just an environmental concern—it is a profitable business model. With advanced machinery, post-industrial and post-consumer plastics like PE, PP, ABS, and PET can be converted into uniform, high-grade plastic pellets ready for remanufacturing.
As a leading machinery manufacturer based in Foshan, Foshan Jiuxin Machinery designs heavy-duty plastic recycling pelletizers engineered for high output, low energy consumption, and maximum melt purity. Here is a step-by-step breakdown of how waste plastic is converted into reusable granules.
The Complete Step-by-Step Recycling Process
Step 1: Crushing & Shredding (Crushing)
Raw waste plastic arrives in various forms—bulky film rolls, rigid pipes, or discarded containers. The material passes through heavy-duty crushers or double-shaft shredders, breaking down large items into uniform 10–20 mm flakes.
Step 2: High-Efficiency Washing (Washing)
Plastics are often contaminated with dirt, oil, labels, or chemicals. Friction washers and sink-float separation tanks eliminate surface impurities, ensuring the end-product pellets meet strict purity standards.
Step 3: Mechanical Dewatering & Drying (Dewatering)
Moisture causes severe bubbles and porosity during extrusion. High-speed centrifugal dewatering machines and hot-air dryers reduce water content to under 1%, preparing the flakes for optimal melting.
Step 4: Melting & Extrusion (Melt Extrusion)
Clean, dry plastic flakes feed into the single-screw or twin-screw extruder. High-precision barrel heaters melt the plastic into a homogeneous polymer mass, while specialized vacuum degassing zones strip away volatile gases and residual moisture.
Step 5: High-Precision Filtration (Filtering)
Before shaping, the liquid polymer passes through a hydraulic double-plate or non-stop screen changer. This phase traps fine micro-impurities (paper fibers, metal micro-particles), protecting downstream molds and machinery.
Step 6: Cutting & Granulation (Pelletizing)
Depending on the material viscosity and target application, the molten plastic is formed into granules via:
Water-Ring Pelletizing: Best for thermal-sensitive polymers like PE and PP.
Strand / Underwater Cutting: Ideal for high-flow engineering resins.
Step 7: Cooling, Drying & Automated Packaging (Packaging)
The freshly cut hot pellets pass through a cooling water bath, enter a centrifugal pellet dryer, and are pneumatically blown into storage silos for automated weighing and bagging.
Why Choose Foshan Jiuxin Recycling Pelletizing Lines?
Boost Your Factory's ROI with Jiuxin Machinery
Whether processing agricultural films, woven bags, or rigid post-consumer waste, Foshan Jiuxin's modular pelletizing systems deliver low energy consumption and long-term durability. Contact our engineering team today for a custom line configuration and factory quote!