Polyethylene (PE) films—including agricultural greenhouse covers, stretch films, carrier bags, and industrial packaging—represent one of the largest volumes of plastic waste globally. Recycling waste PE film into high-purity, uniform plastic pellets presents a massive commercial opportunity for plastic recyclers and compounders.
However, soft PE films pose unique processing challenges, such as low bulk density, high moisture levels, and frequent contamination. Transforming film waste into high-value recycled resin requires a streamlined recycling process paired with high-performance extrusion technology.
Step-by-Step Process for High-Quality PE Film Recycling
To achieve premium pellet quality that meets strict injection molding and film blowing standards, the recycling line must follow a rigorous process:
- Sorting and De-contamination: Separate clean industrial waste (LDPE/LLDPE) from post-consumer agricultural films to minimize dirt, metal, and foreign plastics.
- Shredding and Washing: Reduce large film rolls or agricultural sheets into flakes, followed by heavy-duty friction washing to remove dirt and organics.
- Drying and Moisture Removal: Reduce film moisture content below 2% to prevent bubble formation, voiding, and poor mechanical properties during extrusion.
- Compacting and Force Feeding: Densify light, fluffy film flakes using a compactor or forced side-feeder to ensure continuous feed into the extruder screw.
- Double Degassing and Filtration: Utilize dual-vacuum degassing to draw off residual moisture and volatile gases, combined with fine hydraulic screen filtration.
- Pelletizing and Cooling: Strand-cut or water-ring pelletize the melt, followed by centrifugal drying to yield uniform, dust-free granules.
Technical Challenges in PE Film Pelletizing & Solutions
| Processing Challenge | Impact on Pellet Quality | Engineering Solution |
| Fluffy Low-Density Feed | Screw starvation, output drop, and surging | Integrated compactor / forced crammer feeder |
| Trapped Volatiles & Moisture | Porous pellets, dark streaks, weak strength | High-vacuum multi-vent degassing zones |
| Residual Fine Contaminants | Melt impurities and nozzle clogging | Automatic non-stop hydraulic screen changer |
How Foshan Jiuxin Machinery Maximizes PE Film Recycling Yield
At Foshan Jiuxin Machinery, we specialize in manufacturing heavy-duty PE film plastic recycling granulators designed to convert low-density film waste into high-grade, market-ready plastic pellets.
- Integrated Cutter-Compactor System: Our specialized PE film pelletizing line combines film cutting, pre-heating, and densifying into a single continuous process, ensuring maximum screw filling efficiency.
- Custom L/D Ratio & Modular Screw Design: Optimized screw geometries deliver superior mixing and gentle melt shearing, preserving the molecular weight and tensile strength of recycled PE.
- Dual-Zone High Vacuum Degassing: Effectively strips away moisture, ink residues, and organic volatiles before pelletization, ensuring crystal-clear, bubble-free pellets.
- High-Purity Hydraulic Screen Changers: Continuous filtration systems capture ultra-fine particles, ensuring your recycled PE resin meets strict blow-film manufacturing grade standards.
By investing in Foshan Jiuxin PE film granulating technology, recycling plants can achieve higher hourly throughput, lower energy consumption per kilogram, and premium resin pricing.
Ready to turn waste PE films into profitable recycled pellets?Contact Foshan Jiuxin Machinery Today to consult with our extrusion experts and get a customized line proposal.