Purui Packaging Film Recycling Granulator

Product Overview

The Purui Packaging Film Recycling Granulator is a specialized film regeneration and granulation machine equipped with a densifier-based pelletizing feeding system. It is a custom-made product without a fixed price, tailored to meet the specific production capacity requirements of each customer. This equipment can directly process whole rolls or bales of loose waste film without prior shredding. Through the densifier’s self-friction preheating function, the material is compacted and contracted into uniform pellets, which then undergo single-screw extrusion to achieve melting, plasticization, impurity removal, and venting of moisture. Finally, water cooling and shaping followed by pelletizing yield high-quality recycled pellets with a moisture content of ≤0.3%. Standard models offer capacities ranging from 100 to 1500 kg/h, satisfying the production needs of recycling facilities of various scales.

Technical Principle

This equipment employs an integrated process combining a densifier and single-screw extrusion. The entire granulation process consists of several key stages: First, used films are fed directly into the densifier (pelletizing hopper), where high-speed rotating blades cut and shred the material. Friction generated during rapid movement produces heat, naturally raising the temperature. The originally fluffy film contracts and compacts upon heating, forming uniform pelletized material with a bulk density increased by 3–5 times, ensuring smooth feeding without bridging. Subsequently, the compacted pellets are steadily fed into the extrusion screw; through staged heating and shear action of the screw, the material is thoroughly melted and plasticized. Next, the molten material passes through multi-stage filters of 80–120 mesh to remove impurities, while a venting system expels moisture. Finally, after water-cooling and shaping, the processed material is cut into uniform recycled pellets either by die-face pelletizing or strand-cutting.

Performance Parameters

1. Standard model capacity: 100–1500 kg/h
2. Screw diameter: φ75–φ200 mm
3. Main motor power: 37–355 kW
4. Bulk density increase factor: 3–5 times
5. Finished pellet moisture content: ≤0.3%
6. Filtration precision: 80–120 mesh
7. Screw and barrel materials: 38CrMoAlA alloy, bimetallic materials, nitrogen-treated
8. Heating methods: electric heating, electromagnetic heating
9. Heater materials: cast aluminum, cast copper, mica, ceramic heaters
10. Motor brands: Siemens, ABB, Weg, or leading domestic brands
11. Pelletizing methods: die-face pelletizing, strand-cutting
12. Bearing brands: NSK, SKF, INA, FAG, or top domestic brands
13. Inverter brands: ABB, FUJI, Delta, Siemens
14. Delivery time: 70–80 working days
15. Warranty period: 13 months from the bill of lading date
16. Trademark/brand: PURUI
17. Place of origin: NANTONG

Core Advantages

1. Densifier ensures smooth feeding without bridging: After densification, the material’s bulk density increases by 3–5 times, providing uniform and stable feeding, completely resolving the issues of loose film feeding causing air gaps and uneven distribution in traditional granulators, thus ensuring continuous and stable production.
2. Self-friction preheating saves energy: The material achieves self-heating through high-speed friction within the densifier, significantly boosting plasticization efficiency when entering the extrusion screw. No additional preheating equipment is required, saving over 15% on electricity per ton processed and effectively reducing production energy costs.
3. Eliminates the need for preliminary shredding: The equipment can directly handle whole rolls or bales of waste film without requiring separate shredding machinery, reducing labor by 1–2 operators and cutting down on time and labor costs associated with shredding, thereby streamlining the production process.
4. Excellent venting and dehumidification: Multi-stage venting systems efficiently remove moisture from the material, resulting in finished pellets with moisture content ≤0.3%, free of bubbles and with excellent appearance—effectively addressing industry challenges such as bubbly granules and high defect rates caused by wet materials.
5. Stable and controllable capacity: Standard models cover capacities from 100 to 1500 kg/h, enabling up to 36 tons per day under 24-hour operation, meeting the production needs of businesses of varying sizes. Defect rates remain below 3%, and production scraps can be fully recycled back into the process, enhancing raw material utilization.

Core Value of the Product

1. Simplifies the production process, eliminates shredding steps, reduces manpower, and lowers operational costs.
2. Self-friction preheating boosts energy efficiency, saving over 15% on electricity per ton processed and delivering significant long-term energy savings.
3. Stable feeding and plasticization ensure consistent output, with daily production reaching up to 36 tons, while strictly controlling defect rates to enhance product quality and market competitiveness.
4. Enables 100% closed-loop recycling of scrap, improving raw material utilization, reducing resource waste, and aligning with eco-friendly regeneration principles.

Target Customer Groups

Plastic film manufacturers, waste plastic recycling plants, packaging material companies, and resource regeneration firms—all these enterprises generate large quantities of used packaging film that require processing. This equipment helps them efficiently regenerate waste film into reusable plastic pellets, boosting resource utilization while creating economic value.

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 from agricultural production, packaging film scraps from industrial processes, or the massive amounts of plastic bags generated by the daily delivery industry, all can be transformed into high-quality recycled pellets using this machine. These pellets can then be reused to manufacture various plastic packaging products, realizing circular resource utilization.

Solutions to Industry Pain Points

1. Addresses the issue of loose film feeding causing air gaps and uneven distribution: With the densifier’s pelletizing feeding system, fluffy material is compacted into high-density pellets, ensuring uniform and stable feeding and preventing production interruptions.
2. Solves the problem of increased procedures and labor due to pre-shredding: The equipment can directly process whole rolls or bales of film, eliminating the need for separate shredding and reducing labor by 1–2 operators, thus lowering both labor and equipment costs.
3. Tackles insufficient plasticization and low capacity: Material self-heats through friction inside the densifier, and once fed into the screw, plasticization efficiency soars thanks to staged heating and screw shear, ensuring thorough plasticization and boosting overall capacity—up to 36 tons per day under 24-hour operation.
4. Resolves the issue of bubbly granules and high defect rates caused by wet materials: Equipped with multi-stage venting and dehumidification systems, the equipment effectively removes moisture, yielding finished pellets with moisture content ≤0.3%, bubble-free appearance, and defect rates kept below 3%.

Frequently Asked Questions (FAQ)

Q1: Does this packaging film recycling granulator require pre-shredding of waste film?
A: No, the equipment features a densifier-based pelletizing feeding system that can directly process whole rolls or bales of waste film, eliminating the need for preliminary shredding and simplifying the production process.
Q2: What is the capacity range of this equipment?
A: Standard models range from 100 to 1500 kg/h, with a maximum daily output of 36 tons under 24-hour operation. We can also customize models according to specific production needs.
Q3: What is the quality of the finished pellets?
A: Finished pellets have a moisture content of ≤0.3%, exhibit bubble-free appearance, feature filtration precision of 80–120 mesh, and maintain defect rates below 3%, meeting the raw material requirements for manufacturing various plastic products.
Q4: What are the delivery and warranty periods?
A: Delivery takes 70–80 working days, and the warranty lasts 13 months from the bill of lading date. During the warranty period, we provide corresponding after-sales support.
Q5: What types of waste film can this equipment 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.