POF Heat-Shrink Film Granulator

Product Overview

The POF heat-shrink film granulator is a specialized machine designed for recycling and regenerating waste films. Equipped with an advanced densifier–pelletizing feed system, it efficiently converts loose, bulky used films into high-quality recycled plastic pellets after compaction and preheating. As a customized product, the equipment has no fixed price; it is tailor-made according to the customer’s actual production capacity requirements, precisely matching the operational conditions of businesses of various sizes. The machine employs an integrated process combining a densifier and single-screw extrusion, enabling direct processing of whole rolls or bundles of used films, eliminating the need for prior shredding. This significantly boosts production efficiency while effectively addressing common industry pain points such as uneven feeding and insufficient plasticization found in traditional granulators, providing plastic recycling and processing enterprises with an efficient, energy-saving solution for waste film regeneration.

Technical Principle

The POF heat-shrink film granulator utilizes an integrated core process of densification and single-screw extrusion. The entire production flow is divided into multiple precisely controlled stages: First, used films are fed directly into the densifier (pelletizing hopper), where high-speed rotating blades cut and crush the material. Frictional heating during this process causes the originally fluffy films to shrink and compact into uniform pellets, increasing their bulk density by 3–5 times. The pellets are then smoothly fed into the extrusion screw. Inside the screw, the material undergoes staged heating and shear action, achieving complete melting and plasticization. It then passes through multi-stage filters to remove impurities and completes venting and moisture removal. Finally, after water cooling and pelletizing, high-quality recycled plastic pellets are produced. This integrated process not only simplifies the production workflow but also enhances plasticization efficiency through self-frictional preheating, reducing energy consumption.

Performance Parameters

1. Standard model capacity: 100–1,500 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-cut pelletizing
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 feed system: Featuring a professional densifier–pelletizing feed system, it resolves issues of loose film feeding—such as air gaps, slippage, and uneven feeding—ensuring more uniform and stable feeding, thus guaranteeing continuous production.
2. Self-frictional preheating and plasticization: Through high-speed friction within the densifier, the material naturally heats up before entering the extrusion screw, resulting in higher plasticization efficiency compared to conventional equipment and saving over 15% on electricity per ton processed.
3. Elimination of shredding step: Whole rolls or bundles of used films can be fed directly without prior shredding, drastically cutting down on processing steps and reducing labor costs by 1–2 operators.
4. Efficient venting and dehumidification: The machine boasts comprehensive venting and dehumidification functions, effectively removing moisture from the material. The resulting pellets are bubble-free, aesthetically pleasing, and maintain a defect rate below 3%.
5. High-capacity, stable output: With standard models ranging from 100 to 1,500 kg/h, the machine can produce up to 36 tons per day under 24-hour operation, meeting the production needs of businesses of all sizes. Moreover, edge trimmings generated during production can be fully recycled, maximizing resource utilization.

Core Value of the Product

1. Simplified production process: By eliminating the separate shredding step, reducing manpower requirements, lowering labor costs, and improving workflow smoothness.
2. Energy savings: The self-frictional preheating design enhances plasticization efficiency, saving over 15% on electricity per ton processed, which significantly cuts long-term energy expenses.
3. High-quality recycled pellets: Excellent venting and dehumidification results yield finished pellets with moisture content ≤0.3%, free of bubbles and visually appealing, keeping the defect rate below 3% and ensuring strong market competitiveness.
4. High-capacity adaptability: Covering a broad capacity range of 100–1,500 kg/h, the machine can be customized to meet specific production demands, accommodating businesses of varying scales with daily outputs up to 36 tons, satisfying large-scale production needs.
5. Resource circularity: All production scraps are fully recycled, maximizing the utilization of waste plastics and aligning with environmental protection and sustainable development trends.

Target Customer Groups

The target customer base for the POF heat-shrink film granulator includes plastic film manufacturers, waste plastic recycling plants, packaging material companies, and resource regeneration firms. These enterprises all face the challenge of managing and recycling waste plastic films. The machine’s efficient granulation capability, energy-saving features, and high-quality finished products precisely address their production needs, helping them improve both the efficiency and profitability of waste film regeneration.

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, and POF heat-shrink films. Whether it’s discarded greenhouse films from agricultural production or diverse plastic film wastes generated in industrial packaging and e-commerce logistics, this granulator can transform them into high-quality recycled plastic pellets, enabling resource circulation and reducing the environmental impact of plastic waste.

Solutions to Industry Pain Points

1. Addressing loose film feeding issues: Traditional granulators often suffer from air gaps, slippage, and uneven feeding when handling fluffy films. The densifier–pelletizing feed system of this machine compacts loose films into uniform pellets, increasing bulk density by 3–5 times, ensuring stable, even feeding and maintaining continuous production.
2. Eliminating the pre-shredding step: Conventional equipment requires preliminary shredding of waste films, adding extra processing steps and labor costs. This machine allows direct feeding of whole rolls or bundles, skipping the shredding stage, saving 1–2 operators and reducing labor input.
3. Enhancing plasticization efficiency and capacity: To tackle insufficient plasticization and low productivity typical of ordinary machines, this equipment leverages self-frictional preheating combined with screw shear melting, dramatically boosting plasticization efficiency. It saves over 15% on electricity per ton processed, while standard models cover capacities from 100 to 1,500 kg/h, enabling up to 36 tons per day under 24-hour operation, effectively scaling up enterprise production.
4. Solving the problem of excessive bubbles in pellets: Traditional equipment tends to produce pellets with numerous bubbles and high defect rates when processing wet materials. The machine’s multi-stage venting and dehumidification system keeps finished pellet moisture content at ≤0.3%, producing bubble-free, aesthetically pleasing pellets with defect rates kept below 3%, thereby elevating product quality.

Frequently Asked Questions (FAQ)

Q1: Does this POF heat-shrink film granulator require pre-shredding of waste films?
A: No, the machine is equipped with a densifier–pelletizing feed system that can directly process whole rolls or bundles of used films, eliminating the need for prior shredding and greatly simplifying the production workflow.
Q2: What is the equipment’s capacity range? Can it be customized?
A: Standard models offer capacities between 100 and 1,500 kg/h. As a custom product, we tailor designs based on each customer’s specific production needs, meeting the requirements of businesses of different sizes.
Q3: What is the quality of the finished pellets? What is their moisture content?
A: The machine features highly effective venting and dehumidification systems, yielding finished pellets with moisture content ≤0.3%, free of bubbles and visually appealing, with defect rates kept below 3%. These characteristics satisfy the market demand for high-quality recycled plastic pellets.
Q4: What are the delivery time and warranty period?
A: Delivery takes 70–80 working days, and the warranty lasts 13 months from the bill of lading date, providing customers with ample after-sales support.
Q5: Which brands supply the core components of the equipment?
A: Motor brands include Siemens, ABB, Weg, or leading domestic brands; bearing brands comprise NSK, SKF, INA, FAG, or top domestic brands; inverter brands encompass ABB, FUJI, Delta, Siemens, ensuring stable operation of the machine.