Electronic Protective Film and Release Film Granulator

Product Overview

The electronic protective film and release film granulator is a specialized granulation machine designed specifically for recycling and regenerating thin films. It is equipped with a compacting and agglomeration feeding system, enabling it to directly process whole rolls or bundles of loose, used films without the need for prior shredding. Through processes such as compaction and preheating by the compactor, single-screw extrusion plasticization, multi-stage filtration for impurity removal, venting and moisture elimination, and water-cooling shaping and pelletizing, the equipment efficiently converts waste films into high-quality recycled pellets with a moisture content of ≤0.3% and excellent appearance. Standard models offer capacities ranging from 100 to 1500 kg/h, and customization is available based on customer production requirements, making this machine a core piece of equipment for plastic recycling and processing enterprises.

Technical Principle

This equipment employs an integrated process combining a compactor and single-screw extrusion to achieve efficient regeneration of waste films. First, whole rolls or bundles of used films are fed directly into the compactor (agglomeration hopper), where high-speed rotating blades cut and shred the material. During rapid friction, the material self-heats, causing loose films to contract and compact into uniform agglomerates, increasing their bulk density by 3–5 times. This resolves the issue of bridging and slippage common in traditional feed systems, ensuring smooth feeding into the extrusion screw. Once entering the extrusion stage, the material undergoes segmented heating and screw shearing to complete melting and plasticization. It then passes through multi-stage filters with mesh sizes of 80–120 to remove impurities, followed by venting and moisture removal steps to eliminate residual moisture and contaminants. Finally, water cooling shapes and forms the pellets, resulting in high-quality recycled pellets with a moisture content of ≤0.3% and no air bubbles.

Performance Parameters

1. Capacity range: 100–1500 kg/h
2. Screw diameter: φ75–φ200 mm
3. Main motor power: 37–355 kW
4. Material handling capability: can directly process whole rolls/bundles of film, increasing bulk density by 3–5 times
5. Finished product specifications: moisture content ≤0.3%, filtration accuracy 80–120 mesh
6. Screw barrel material: 38CrMoAlA alloy or bimetallic materials, nitrogen-treated
7. Heating method: 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. Pelletizing methods: die-face pelletizing, strand-cutting pelletizing
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. Compactor feeding eliminates bridging: With its agglomeration feeding system, loose films become compacted, increasing bulk density by 3–5 times, completely resolving issues of bridging and uneven feeding found in conventional equipment, thus ensuring continuous and stable production.
2. Self-friction preheating saves energy: The material achieves self-heating within the compactor through high-speed friction, eliminating the need for additional preheating equipment. This not only enhances plasticization efficiency but also significantly reduces energy consumption, saving more than 15% per ton processed.
3. Eliminates the need for shredding: Whole rolls or bundles of waste film can be fed directly without prior shredding, reducing the need for 1–2 operators and lowering labor costs and processing time.
4. Excellent venting and moisture removal: Multi-stage venting and moisture extraction effectively removes moisture and impurities, resulting in finished pellets with a moisture content of ≤0.3%, excellent appearance free of air bubbles, and a defect rate kept below 3%.
5. Broad capacity coverage: Standard models offer 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 various scales. Moreover, production scraps can be fully recycled, improving raw material utilization.
6. High-end core component configuration: Motors, bearings, and inverters all use world-class or premium domestic brands; the screw barrel is nitrogen-treated, ensuring strong equipment stability, long service life, and a warranty period of up to 13 months.

Core Product Value

1. Simplifies production processes: By eliminating the separate shredding step, reducing labor input, and decreasing overall process complexity, it boosts overall production efficiency.
2. Lowers production costs: The self-friction preheating design saves more than 15% per ton processed, keeps the defect rate below 3%, and enables 100% recycling of production scraps, thereby compressing costs across energy consumption, scrap losses, and raw material utilization.
3. Enhances product quality: Venting and moisture removal ensure pellets with a moisture content of ≤0.3% and excellent appearance free of air bubbles. These high-quality recycled pellets can be directly used in downstream plastic product manufacturing, enhancing market competitiveness.
4. Flexible adaptation to demand: Equipment can be customized according to customer production requirements, with capacities ranging from 100 to 1500 kg/h, suitable for recycling and processing enterprises of different scales.

Target Customer Groups

Plastic film manufacturers, waste plastic recycling plants, packaging material companies, and resource recovery firms—especially those with large-scale demands for recycling and regenerating waste films and seeking efficient, low-cost production—can all customize equipment tailored to their specific 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, as well as electronic protective films and release films. It can efficiently convert these diverse, loose waste films into high-quality recycled pellets, realizing the resourceful utilization of waste plastics and providing premium raw materials for downstream plastic production.

Solutions to Industry Pain Points

1. Addresses bridging and uneven feeding issues with loose films: The compactor’s agglomeration feeding system compacts loose films into dense agglomerates, increasing bulk density by 3–5 times, ensuring uniform and stable feeding and maintaining continuous production.
2. Solves the problem of increased processes and labor due to pre-shredding: The equipment can directly process whole rolls or bundles of film, eliminating the need for separate shredding, reducing the need for 1–2 operators, and cutting down on labor costs and processing time.
3. Tackles insufficient plasticization and low productivity: The material self-heats within the compactor through friction, greatly boosting plasticization efficiency when fed into the extrusion screw. Combined with a large-diameter screw and high-power main unit, it achieves high capacities of 100–1500 kg/h, enabling up to 36 tons per day under 24-hour operation.
4. Resolves issues of bubbly pellets and high defect rates caused by wet materials: Multi-stage venting and moisture removal, along with filtration using 80–120 mesh screens, effectively eliminate moisture and impurities, producing pellets with a moisture content of ≤0.3%, excellent appearance free of air bubbles, and keeping the defect rate below 3%.

Common Questions FAQ

Q1: What types of waste films can this granulator process?
A: This equipment can handle agricultural greenhouse films, packaging stretch films, BOPP/CPP industrial films, courier plastic bags, heat-shrink films, as well as electronic protective films and release films—various types of waste plastic films. No prior shredding is required; whole rolls or bundles can be fed directly.
Q2: What is the equipment’s capacity range? Can it be customized?
A: Standard models offer capacities from 100 to 1500 kg/h, and customization is available to meet specific customer production needs, accommodating enterprises of different scales.
Q3: What costs can be saved by using this granulator?
A: The equipment eliminates the need for shredding, reducing the number of operators by 1–2; its self-friction preheating design saves more than 15% per ton processed; and with a defect rate kept below 3%, production scraps can be fully recycled, reducing labor, energy, and raw material losses, thereby lowering overall production costs.
Q4: What is the quality of the finished pellets?
A: Finished pellets have a moisture content of ≤0.3%, filtration accuracy of 80–120 mesh, excellent appearance free of air bubbles, and a defect rate kept below 3%. They can be directly used as high-quality raw materials in downstream plastic product manufacturing.
Q5: What are the delivery time and warranty period?
A: Delivery takes 70–80 working days, with a warranty of 13 months from the bill of lading date. Core components use world-class or premium domestic brands, ensuring reliable performance.