Purui CPP Film Granulator

Product Overview

The Purui CPP Film Granulator is a specialized film recycling granulation machine equipped with a densifier-based pelletizing feeding system. It is designed specifically for the recycling and regeneration of waste plastic films and is a customized product without a fixed price, tailored according to the customer’s production requirements. This equipment can directly process whole rolls or bales of loose waste film without prior shredding. Through the densifier’s compaction and preheating process, the fluffy material is transformed into pellets with higher bulk density. Subsequently, via extrusion, plasticization, impurity removal, degassing, and pelletizing stages, it ultimately produces high-quality recycled plastic pellets, widely suitable for recycling and regenerating various types of waste films such as agricultural greenhouse films, packaging stretch films, BOPP/CPP industrial films, courier plastic bags, heat-shrink films, and more.

Technical Principle

The Purui CPP Film Granulator employs an integrated process combining a densifier and a single-screw extruder to achieve efficient recycling of waste films. Specifically, the process begins with waste film entering the densifier (pelletizing hopper), where high-speed rotating blades cut and crush the material. Friction generated during rapid movement generates heat, naturally raising the temperature. The originally fluffy film contracts and compacts into uniform pellets, significantly increasing its bulk density before being fed steadily into the extrusion screw. In the extrusion stage, the material undergoes segmented heating and screw shearing to complete melting and plasticization. Impurities are removed through multi-stage filtration, while moisture and gases are vented out. Finally, after water cooling and shaping, the material is cut into pellets, yielding low-moisture, high-quality recycled pellets.

Performance Parameters

1. Standard model capacity: 100–1500 kg/h
2. Screw diameter: φ75–φ200 mm
3. Main motor power: 37–355 kW
4. Material processing capability: Can directly handle whole rolls/bales of film, increasing bulk density by 3–5 times
5. Finished pellet specifications: Moisture content ≤0.3%, filtration accuracy 80–120 mesh
6. Screw and barrel materials: 38CrMoAlA, bimetallic, nitrided treatment
7. Heating methods: Electric heating, electromagnetic heating
8. Heater materials: Cast aluminum, cast copper, mica, ceramic heaters
9. Motor brands: Siemens, ABB, Weg, or leading domestic brands
10. Cutting methods: Die-face cutting, strand cutting
11. Bearing brands: NSK, SKF, INA, FAG, or top domestic brands
12. Inverter brands: ABB, FUJI, Delta, Siemens
13. Delivery time: 70–80 working days
14. Warranty period: 13 months from the bill of lading date
15. Brand trademark: PURUI
16. Country of origin: NANTONG

Core Advantages

1. Stable feeding without bridging: Equipped with a dedicated densifier-based pelletizing feeding system, ensuring that fluffy film feed does not experience bridging or slippage, resulting in more uniform feeding and continuous production.
2. Energy-efficient plasticization: The material achieves preheating through self-friction, eliminating the need for additional preheating equipment, thus improving plasticization efficiency while significantly reducing electricity consumption—saving over 15% per ton processed.
3. Eliminates the shredding step: Whole rolls or bales of waste film can be fed directly without prior shredding, reducing production steps and labor costs, and saving 1–2 operators.
4. High-quality pellet output: Excellent degassing and dehumidification performance ensures finished pellets have moisture content ≤0.3%, bubble-free appearance, and filtration accuracy up to 80–120 mesh, with a defect rate kept below 3%.
5. High-capacity stable operation: The standard model boasts a maximum capacity of 1500 kg/h, enabling up to 36 tons per day when operating 24 hours, with production scraps fully recyclable in a closed-loop system, enhancing raw material utilization.

Core Product Value

1. Simplifies the production process by eliminating the shredding step, reducing labor input, and lowering operational costs.
2. Self-friction preheating design boosts plasticization efficiency, dramatically cuts energy consumption, and enables energy-saving production.
3. Provides stable high-capacity output, meeting large-scale recycling demands while producing high-quality recycled pellets, thereby increasing product value.
4. Enables 100% closed-loop recycling of production scraps, maximizing raw material utilization and minimizing resource waste.

Target Customer Groups

Plastic film manufacturers, waste plastic recycling plants, packaging material companies, and renewable resource firms—all these enterprises possess substantial quantities of waste plastic film requiring treatment and place high demands on the quality and efficiency of recycled pellets. The Purui CPP Film Granulator’s customizable capacity design and efficient processing capabilities precisely meet their production needs.

Application Scenarios

This equipment is suitable for recycling and regenerating various types of waste plastic films, including agricultural greenhouse films, packaging stretch films, BOPP/CPP industrial films, courier plastic bags, heat-shrink films, and more. Whether it’s discarded greenhouse films left over from agricultural production, stretch films generated during industrial packaging, or the vast quantities of plastic packaging bags used in the courier industry, all can be converted into high-quality recycled pellets through this granulator, achieving resource circularity.

Solutions to Industry Pain Points

1. Addresses issues of bridging and uneven feeding caused by fluffy film: The densifier-based pelletizing feeding system compacts fluffy film into uniform pellets, ensuring smooth, continuous feeding and preventing production interruptions.
2. Solves the problem of increased processes and labor due to pre-shredding: The equipment can directly process whole rolls or bales of film, eliminating the separate shredding step, reducing 1–2 operators, and lowering both labor costs and complexity of production procedures.
3. Resolves inadequate plasticization and low productivity: Self-friction preheating raises material temperature, combined with screw shearing for melting and plasticization, greatly boosting plasticization efficiency—saving over 15% per ton processed—while delivering a maximum capacity of 1500 kg/h and up to 36 tons per day, satisfying large-scale production needs.
4. Tackles problems of excessive bubbles and high defect rates in wet-material granules: Multi-stage degassing and dehumidification effectively removes moisture from the material, resulting in finished pellets with moisture content ≤0.3%, bubble-free appearance, and a defect rate controlled within 3%, thereby elevating the quality of recycled pellets.

Frequently Asked Questions (FAQ)

Q1: Does the Purui CPP Film Granulator require pre-shredding of waste film?
A: No, this granulator is equipped with a densifier-based pelletizing feeding system that can directly process whole rolls or bales of fluffy film, eliminating the need for pre-shredding and reducing labor and time costs.
Q2: What is the capacity range of this equipment? Can it be customized?
A: The standard model has a capacity of 100–1500 kg/h. As a custom-made product, it can be tailored to meet specific customer production needs, accommodating different scales of operations.
Q3: What is the quality of the finished recycled pellets?
A: The finished pellets have moisture content ≤0.3%, filtration accuracy of 80–120 mesh, bubble-free appearance, and a defect rate kept below 3%, fully meeting the raw material usage requirements of most plastic processing enterprises.
Q4: How long is the warranty period?
A: The warranty lasts 13 months from the date of the bill of lading. During the warranty period, free repair services are provided for non-human-caused malfunctions.
Q5: Which types of waste film can this granulator process?
A: It can handle agricultural greenhouse films, packaging stretch films, BOPP/CPP industrial films, courier plastic bags, heat-shrink films, and other varieties of waste plastic films, offering broad applicability.