OPP Film Granulator

Product Overview

The OPP film granulator is a customized, specialized machine designed specifically for the recycling and regeneration of waste plastic films. It features a densifier–pelletizing feeding system and is not offered at a fixed price; instead, it is fully tailored to meet each customer’s production capacity requirements. The equipment can directly compress and preheat fluffy waste films, then efficiently convert them into high-quality recycled pellets, addressing many industry pain points associated with traditional granulation machines—such as uneven feeding, cumbersome processes, high energy consumption, and a high rate of defective pellets. It is a core piece of equipment in the field of plastic film recycling and regeneration. The product brand is PURUI, originating from NANTONG, boasting stable and reliable configurations along with excellent regeneration performance, capable of meeting the production needs of recycling enterprises of various scales.

Technical Principle

This OPP film granulator employs an integrated process combining a densifier and a single-screw extruder, enabling efficient end-to-end processing from waste film to recycled pellets. First, the waste film enters the densifier (pelletizing hopper), where high-speed rotating and stationary blades cut and crush the material. Frictional heat generated during this process raises the temperature, causing the originally fluffy film to shrink and compact into uniform pellets, significantly increasing its bulk density before being fed steadily into the extrusion screw. Subsequently, the material undergoes staged heating and screw shearing to achieve melting and plasticization, followed by multi-stage filtration to remove impurities while simultaneously venting air and moisture. Finally, after water cooling and shaping, the material is cut into pellets, yielding high-quality recycled plastic pellets. This entire process eliminates the need for prior shredding, relying instead on self-frictional preheating to save energy while ensuring superior pellet quality.

Performance Data and Core Configuration

1. Production Capacity: Standard models cover a capacity range of 100–1500 kg/h, with corresponding models customizable based on specific customer production needs.
2. Screw Configuration: Screw diameters range from φ75 to φ200 mm, crafted from 38CrMoAlA alloy or bimetallic materials, and subjected to nitriding treatment for enhanced wear resistance and long-term stable operation.
3. Main Motor Power: Motor power ranges from 37 to 355 kW, paired with Siemens, ABB, Weg, or top-tier domestic motor brands, delivering robust power and stable performance.
4. Densifier Performance: Capable of handling whole rolls or bundles of film without prior shredding, increasing bulk density by 3–5 times and ensuring uniform feeding without bridging.
5. Finished Product Specifications: Pellets have a moisture content ≤0.3%, filtration accuracy of 80–120 mesh, bubble-free appearance, and a defect rate kept below 3%.
6. Heating Options: Supports both electric and electromagnetic heating methods, with heater materials available in cast aluminum, cast copper, mica, or ceramic types to suit diverse production requirements.
7. Pellet Cutting Methods: Offers either die-face cutting or strand-cutting options to meet different pellet-forming needs.
8. Key Components: Bearings are sourced from NSK, SKF, INA, FAG, or leading domestic brands, while inverters come from ABB, FUJI, Delta, or Siemens, ensuring stable equipment operation.
9. Delivery and After-Sales Service: Delivery takes 70–80 working days, with a warranty period of 13 months from the bill of lading date.

Core Advantages

1. Stable Feeding with Densifier: Equipped with a dedicated densifier–pelletizing feeding system, preventing bridging and ensuring more uniform feeding, thus avoiding the common issue of fluffy film slipping or getting stuck in traditional equipment and guaranteeing continuous production.
2. Energy-Saving Self-Frictional Preheating: Material achieves self-heating through high-speed friction, eliminating the need for additional preheating equipment, resulting in higher plasticization efficiency and significant energy savings—saving over 15% per ton processed and substantially reducing overall production costs.
3. Elimination of Shredding Process: Allows direct feeding of whole rolls or bundles of film without prior shredding, reducing the need for 1–2 operators, saving labor costs and processing time, and boosting overall production efficiency.
4. Excellent Venting and Dehumidification: Multi-stage venting and dehumidification effectively removes moisture and impurities, achieving a finished pellet moisture content of ≤0.3%, bubble-free appearance, and keeping the defect rate under 3%.
5. High Capacity and Closed-Loop Recycling: The equipment supports 24-hour continuous operation, with a maximum daily output of up to 36 tons, and all edge trimmings generated during production can be fully recycled, maximizing resource utilization.

Core Value of the Product

1. Simplifies the production process by eliminating the shredding step, reducing labor input, and lowering operational costs.
2. Self-frictional preheating technology enhances plasticization efficiency, significantly saving energy and providing substantial long-term cost reductions.
3. Stable feeding and molding processes ensure high-quality recycled pellets with low defect rates, enhancing product market competitiveness.
4. Supports 24-hour continuous high-capacity production, meeting the demands of large-scale recycling enterprises while enabling 100% recycling of edge trimmings to improve resource utilization.
5. Customizable models adapt to varying production capacities, flexibly accommodating diverse customer scenarios.

Target Customer Groups

The primary target customer groups for this product include plastic film manufacturers, waste plastic recycling plants, packaging material companies, and renewable resource firms—businesses that handle large quantities of waste plastic films requiring recycling and regeneration, with high demands for pellet quality, production efficiency, and cost control. This granulator perfectly aligns with their production needs and operational contexts.

Application Scenarios

The OPP film granulator is suitable for various applications involving the recycling and regeneration of waste plastic films, capable of processing agricultural greenhouse films, packaging stretch films, BOPP/CPP industrial films, courier plastic bags, heat-shrink films, and other types of waste films. Whether operating small-scale recycling facilities or large-scale renewable resource enterprises, customers can customize models according to their specific production needs, achieving efficient waste film recycling and high-quality regenerated products.

Addressing Industry Pain Points

1. Resolves the issue of fluffy film slipping or getting stuck during feeding in traditional granulators: With the densifier–pelletizing feeding system, fluffy films are compacted into high-density pellets before being fed smoothly, completely eliminating feeding problems and ensuring continuous production.
2. Addresses the pain point of increased processing steps and labor due to pre-shredding: The equipment can directly process whole rolls or bundles of film without prior shredding, eliminating the separate shredding step, reducing 1–2 operators, and cutting labor and processing time costs.
3. Solves the problem of insufficient plasticization and low productivity: Self-frictional preheating raises the material’s temperature, improving plasticization efficiency when entering the extrusion screw; coupled with a high-power main motor and optimized screw design, daily output can reach up to 36 tons, dramatically boosting capacity.
4. Tackles the issue of excessive bubbles and high defect rates in wet-material granules: Multi-stage venting and dehumidification effectively remove moisture, resulting in finished pellets with a moisture content of ≤0.3%, bubble-free appearance, and a defect rate kept below 3%, thereby enhancing product quality.

Frequently Asked Questions (FAQ)

Q1: Does this OPP film granulator require pre-shredding of waste films?
A: No, the equipped densifier can directly process whole rolls or bundles of film, using internal high-speed rotating and stationary blades to shred and compact the material, eliminating the need for separate shredding and saving labor and time costs.
Q2: What is the product’s capacity range? Can it be customized?
A: Standard models offer a capacity range of 100–1500 kg/h. As a custom-made product, we can tailor the model’s capacity precisely to meet each customer’s production needs, accommodating enterprises of varying sizes.
Q3: How is the quality of the recycled pellets? What is the defect rate?
A: Finished pellets have a moisture content of ≤0.3%, filtration accuracy of 80–120 mesh, bubble-free appearance, and a defect rate kept below 3%. Additionally, edge trimmings can be fully recycled in a closed-loop system, ensuring optimal resource utilization.
Q4: What are the delivery and warranty periods?
A: Delivery takes 70–80 working days, with a warranty period of 13 months from the bill of lading date. During this period, free repair services are provided for non-human-caused malfunctions.
Q5: How does the equipment perform in terms of energy consumption?
A: Utilizing self-frictional preheating technology, the equipment eliminates the need for additional preheating devices, achieving higher plasticization efficiency and saving over 15% per ton processed compared to traditional granulators, significantly reducing overall energy costs.