Bubble Wrap and Air Cushion Film Granulator

Product Overview

This is a specialized film recycling granulation machine equipped with a densifier–pelletizing feeding system, manufactured by the PURUI brand and originating from Nantong. The equipment is specifically designed for the recycling and regeneration of various waste plastic films, such as bubble wrap and air cushion film. After compacting and preheating the fluffy waste film, it efficiently converts it into high-quality recycled pellets. Production can be customized according to customer output requirements, with no fixed pricing. The machine employs an integrated process combining a densifier and single-screw extrusion, enabling direct processing of whole rolls or bundles of waste film, eliminating the need for prior shredding and significantly boosting production efficiency while effectively addressing common industry challenges like uneven feeding, insufficient plasticization, and high rates of defective pellets in traditional granulators.

Technical Principle

The equipment utilizes an integrated core process of densifier plus single-screw extrusion to achieve efficient recycling and regeneration of waste films. Specifically, the process begins with the waste film being fed directly into the densifier (pelletizing hopper), where high-speed rotating blades cut and shred the material. Friction generated during rapid movement generates heat, initiating self-heating; the originally fluffy film contracts and compacts under heat, forming uniform pellets with greatly increased bulk density, which are then smoothly fed into the extrusion screw. Inside the screw, the material undergoes dual action—segmented heating and shear from the screw—which completes melting and plasticization. Subsequently, multi-stage filtration removes impurities, followed by venting and dehumidification to eliminate moisture and contaminants. Finally, water cooling and pelletizing produce high-quality recycled plastic pellets. The entire process is seamlessly linked, enabling integrated operation from raw material handling to finished product output without requiring additional pre-shredding steps.

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: 3–5 times
5. Finished pellet moisture content: ≤0.3%
6. Filtration precision: 80–120 mesh
7. Screw and barrel materials: 38CrMoAlA, bimetallic alloy, nitrided treatment
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. Cutting methods: die-face cutting, 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

Core Advantages

1. Densifier prevents bridging: Equipped with a dedicated densifier–pelletizing feeding system, the material forms uniform pellets after compaction, avoiding bridging and slippage during feeding, ensuring more even and stable material input and continuous production.
2. Self-friction preheating saves energy: The material achieves self-heating through high-speed friction within the densifier, eliminating the need for additional preheating equipment. This not only enhances plasticization efficiency but also significantly reduces energy consumption compared to conventional machines.
3. Eliminates pre-shredding step: Whole rolls or bundles of waste film can be fed directly without prior shredding, reducing production steps and saving on both equipment investment and labor costs.
4. Excellent venting and dehumidification: Multi-stage venting and dehumidification effectively remove moisture and impurities, resulting in defect-free pellets with superior appearance and lower rejection rates.
5. Customizable capacity: Models can be tailored to meet specific customer output needs, offering flexible options ranging from 100 kg/h to 1500 kg/h to suit different scales of recycling operations.

Core Value of the Product

1. Simplified processes reduce costs: By eliminating the separate shredding step, the need for 1–2 operators is reduced, lowering labor expenses while also cutting down on equipment investment and maintenance costs.
2. High efficiency and energy savings boost profitability: Self-friction preheating dramatically improves plasticization efficiency, saving over 15% electricity per ton processed; under continuous 24-hour operation, daily output can reach up to 36 tons, enhancing productivity and economic returns.
3. High-quality pellets add value: With defective pellet rates kept below 3%, free of bubbles and boasting excellent appearance, these pellets can be directly used in plastic product manufacturing. Scrap generated during production can be fully recycled, further improving raw material utilization and reducing production costs.
4. Versatile applicability expands market reach: Capable of processing multiple types of waste films, this equipment adapts to diverse recycling scenarios, helping businesses broaden their operations and strengthen market competitiveness.

Target Customer Groups

Plastic film manufacturers, waste plastic recycling plants, packaging material companies, and resource recovery firms—all have a demand for recycling and regenerating waste films. This equipment helps them achieve circular use of raw materials, reduce production costs, and improve economic performance.

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 bubble wrap, air cushion film, and other discarded films. Whether large-scale resource recovery companies centrally process collected waste films or plastic film producers handle scraps generated during their own production, this machine efficiently completes recycling and granulation tasks, transforming waste films into reusable plastic pellets.

Solutions to Industry Pain Points

1. Solves the problem of feeding fluffy films: Addressing issues of bridging, uneven feeding, and slippage commonly encountered in traditional equipment, this machine uses a densifier to compress fluffy films into uniform pellets, ensuring stable feeding and uninterrupted production.
2. Reduces process steps and labor input: Conventional granulators require prior shredding of waste films, adding extra steps and labor costs. This equipment allows direct feeding of whole rolls or bundles, eliminating the shredding step and reducing 1–2 operators, thus cutting both labor and equipment expenses.
3. Enhances plasticization efficiency and capacity: Traditional machines often suffer from inadequate plasticization, limiting output. This equipment combines self-friction preheating with screw shear melting, boosting plasticization efficiency and saving over 15% electricity per ton processed. Under 24-hour operation, daily output can reach up to 36 tons, significantly increasing capacity.
4. Lowers defective pellet rates: To tackle problems of excessive bubbles and high rejection rates in wet-material granulation, this machine employs multi-stage venting and dehumidification to effectively remove moisture, achieving finished pellets with moisture content ≤0.3%, free of bubbles and boasting excellent appearance, keeping defective rates below 3% and elevating product quality.

Frequently Asked Questions (FAQ)

Q1: Does this bubble wrap and air cushion film granulator require pre-shredding of waste films?
A: No, the equipment is equipped with a densifier–pelletizing feeding system that can directly process whole rolls or bundles of waste films, eliminating the need for pre-shredding and reducing production steps and costs.
Q2: What is the equipment’s capacity range? Can it be customized?
A: Standard models offer capacities from 100 to 1500 kg/h, and we support customizations tailored to specific customer output needs, meeting diverse production scale requirements.
Q3: What is the quality of the finished pellets? What is their moisture content?
A: Finished pellets are bubble-free with excellent appearance, defective rates kept below 3%, and moisture content ≤0.3%, meeting the standards for recycled plastic pellets and ready for use in plastic product manufacturing.
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. During the warranty period, any quality issues will be covered by appropriate after-sales service.
Q5: Which types of waste films can the equipment process?
A: It can handle agricultural greenhouse films, packaging stretch films, BOPP/CPP industrial films, courier plastic bags, heat-shrink films, bubble wrap, air cushion film, and other varieties of waste plastic films, adapting to multiple recycling scenarios.