Plastic Pelletizing Machine for PE PP Plastic Recycling

A plastic pelletizing machine (also called plastic granulator or pelletizer) is industrial equipment that converts waste plastic materials into uniform plastic pellets or granules. The process involves crushing, melting, extrusion, cutting, and cooling to produce high-quality recycled plastic pellets that can be reused in manufacturing.

The pelletizing process works in six stages: 1) Crushing — waste plastic is crushed into smaller pieces; 2) Feeding — crushed material is fed into the extruder via a screw feeder; 3) Extrusion — material is melted and homogenized in the heated barrel; 4) Degassing — vacuum system removes impurities and gases; 5) Pelletizing — molten plastic is cut into pellets by water ring or strand cutting; 6) Cooling & Packing — pellets are dried and packaged.

Our pelletizing machine can process a wide range of thermoplastics including: PE (polyethylene) — film, bottles, pipes; PP (polypropylene) — woven bags, containers, non-woven fabric; HDPE — rigid containers, drums, pipes; LDPE — film, bags, shrink wrap; PS, ABS, and other engineering plastics. The machine handles both rigid and flexible materials.

Our standard pelletizing lines range from 100 kg/h to 1000 kg/h. The SJ-85 model starts at 100-150 kg/h, while our largest SJ-180 can produce 800-1000 kg/h. Custom capacities are available based on your specific requirements and material type.

Water ring cutting produces spherical pellets with uniform size and is ideal for most materials including PE, PP, and soft plastics. It offers higher efficiency and less dust. Strand pelletizing is better for engineering plastics, filled compounds, and materials requiring specific pellet shapes. We recommend water ring cutting for most recycling applications.

The cost of a plastic pelletizing machine varies based on capacity, configuration, and customization. A standard small-scale line starts at an affordable investment, while large industrial lines with full automation cost more. Contact our sales team for a detailed quotation tailored to your needs.

Consider these factors: 1) Material type — PE, PP, or mixed plastics; 2) Input form — film, rigid, or scrap; 3) Required output capacity in kg/h; 4) Desired pellet quality and size; 5) Available floor space and power supply; 6) Budget. Our technical team offers free consultation to help you select the optimal pelletizing solution.

For PE film recycling, we recommend our water ring pelletizing system with forced feeding and dual degassing. PE film has low bulk density and requires a specialized screw design and filtration system. Our SJ-100 to SJ-150 models are ideal for PE film recycling, offering 200-700 kg/h capacity with stable output and consistent pellet quality.

Single stage pelletizing uses one extruder to melt and pelletize material, suitable for clean, pre-processed scrap. Double stage pelletizing uses two extruders in series, providing better mixing, degassing, and filtration. Double stage is recommended for contaminated materials, printed film, and applications requiring higher pellet purity.

Yes, professional installation is recommended for optimal performance. We provide on-site installation and commissioning support for all our pelletizing machines. Our engineers travel to your facility to supervise installation, conduct testing, and train your operators. Remote video guidance is also available for basic setup.

We offer comprehensive after-sales support including: 12-month warranty on the main machine, lifetime technical consultation, remote troubleshooting via video call, spare parts supply, and optional on-site maintenance visits. Our support team responds within 24 hours for any technical issues.

Yes, our pelletizing machines can handle mixed plastic waste, but the output quality depends on the material compatibility. For mixed PE/PP waste, our double stage system with filtration works effectively. For heavily mixed or contaminated materials, we recommend a plastic recycling washing line before pelletizing for best results.

We provide a 12-month warranty on all pelletizing machines covering manufacturing defects and component failures under normal operation. The warranty includes screw and barrel, motor, gearbox, electrical components, and control system. Wear parts such as blades and screens are covered separately. Extended warranty options are available on request.

Standard delivery time is 30-45 days after deposit confirmation, depending on the model and customization requirements. We offer fast-track production for urgent orders. Shipping is available worldwide via sea freight, with professional installation and commissioning support at your site.