Purui Agricultural Film Granulator

Product Overview

The PURUI brand agricultural film granulator is a specialized equipment for recycling and granulating thin films, equipped with a densifier–pelletizing feeding system. It originates from Nantong, Jiangsu Province. Designed specifically for the recycling and regeneration of various used plastic films, this machine can efficiently convert loose waste films into high-quality recycled pellets after compacting and preheating them. Customization is available based on customer production requirements, with no fixed price. This equipment addresses common industry pain points such as material bridging in traditional granulators, the need for prior shredding, and low plasticization efficiency. It can directly process whole rolls or bundles of film, significantly boosting production efficiency and reducing processing costs. The finished pellets exhibit excellent appearance and low defect rates, making it a core piece of equipment in the field of waste plastic recycling and processing.

Technical Principle

This agricultural film granulator employs an integrated process combining a densifier and a single-screw extruder. The entire granulation process operates in a highly efficient closed loop, eliminating the need for additional shredding steps. Used films first enter the densifier (pelletizing barrel), where high-speed rotating blades cut and crush the material. Frictional heat generated within the barrel raises the temperature, causing loose films to shrink and compact into uniform pellets. Once the bulk density has increased substantially, the pellets are smoothly fed into the extrusion screw. Subsequently, the material undergoes staged heating and shear-based melting and plasticization, followed by multi-stage filtration to remove impurities and vent moisture. Finally, water cooling and pelletizing complete the transformation from used film to high-quality recycled pellets. By relying on self-generated frictional heat for preheating, this process not only enhances plasticization efficiency but also reduces external heating energy consumption while ensuring stable quality of the final pellets.

Performance Parameters

1. Standard model capacity: 100–1500 kg/h
2. Screw diameter: φ75–φ200 mm
3. Main motor power: 37–355 kW
4. Material bulk density increase factor: 3–5 times
5. Finished pellet moisture content: ≤0.3%
6. Filtration precision: 80–120 mesh
7. Screw barrel material: 38CrMoAlA, bimetallic materials, nitrided treatment
8. Heating method: 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 feeding prevents bridging: Utilizing a dedicated densifier–pelletizing feeding system, loose films are compacted into uniform pellets before being fed into the screw, completely resolving issues of material bridging and uneven feeding found in conventional equipment. This ensures stable, continuous feeding and enhances production continuity.
2. Self-friction preheating saves energy: The material achieves self-heating through high-speed friction inside the densifier, eliminating the need for additional preheating equipment. This boosts plasticization efficiency while reducing external heating energy consumption, saving more than 15% electricity per ton processed and significantly lowering production power costs.
3. Eliminates the need for prior shredding: The densifier can directly handle whole rolls or bundles of film without requiring separate shredding, thereby removing the independent shredding step and reducing labor by 1–2 operators, thus cutting both labor and equipment expenses.
4. Excellent venting and dehumidification: Equipped with a comprehensive venting and dehumidification system, the machine effectively removes moisture from the material, achieving a finished pellet moisture content of ≤0.3%. With bubble-free appearance and a defect rate kept below 3%, it ensures high-quality output of recycled pellets.
5. Flexible capacity range: The standard model covers a capacity range of 100–1500 kg/h, enabling up to 36 tons per day under 24-hour operation, meeting the production needs of recycling facilities of varying scales. Customization is also available according to specific customer requirements.
6. Reliable quality of core components: The screw barrel is crafted from high-grade materials like 38CrMoAlA and treated with nitriding; motors, bearings, and inverters all use top international or premium domestic brands. The equipment operates stably and durably, backed by a 13-month warranty that helps reduce long-term maintenance costs.

Core Product Value

1. Simplifies the production process, eliminates shredding steps, reduces labor input, and lowers overall production costs.
2. Self-friction preheating technology improves plasticization efficiency, saving over 15% electricity per ton and significantly reducing long-term energy costs.
3. Stable feeding and efficient venting/dehumidification ensure high-quality finished pellets, with a defect rate of ≤3%, enhancing product market competitiveness.
4. Wide capacity range plus customization services accommodate businesses of different sizes, flexibly aligning with production plans.
5. 100% closed-loop recycling of production scraps maximizes resource utilization, in line with green recycling principles.

Target Customer Groups

Plastic film manufacturers, waste plastic recycling plants, packaging material companies, recycling enterprises, and any industrial enterprise with a need to recycle and regenerate used plastic films. These businesses can leverage this equipment to achieve efficient resource recovery from waste films, solving disposal challenges while producing high-quality recycled pellets that generate additional revenue.

Application Scenarios

This agricultural film granulator is suitable for recycling and regenerating various types of used plastic films, including agricultural greenhouse films, packaging stretch films, BOPP/CPP industrial films, courier plastic bags, heat-shrink films, and other waste films. Whether handling small batches at small-scale recycling plants or large-scale production at major recycling enterprises, the equipment adapts reliably, transforming loose waste films into high-quality recycled pellets reusable in plastic manufacturing, thus realizing resource circularity.

Solutions to Industry Pain Points

1. Addresses issues of loose film bridging and uneven feeding: Through the densifier–pelletizing feeding system, loose films are compacted into uniform pellets, ensuring continuous and stable feeding and preventing production interruptions or capacity fluctuations caused by uneven feeding.
2. Solves the problem of increased processes and labor due to prior shredding: The equipment can directly process whole rolls or bundles of film, eliminating the need for separate shredding operations and associated equipment and workers, thereby simplifying the production process while reducing labor and equipment costs.
3. Tackles insufficient plasticization and low productivity: The material undergoes self-friction preheating within the densifier, completing preliminary plasticization ahead of time. Upon entering the screw, plasticization becomes even more thorough, complemented by an efficient screw-cutting structure, dramatically boosting plasticization efficiency and enabling daily outputs of up to 36 tons, effectively increasing production capacity.
4. Resolves problems of bubbly pellets and high defect rates: Equipped with a multi-stage venting and dehumidification system, the machine thoroughly removes moisture from the material, resulting in finished pellets with moisture content ≤0.3%, bubble-free appearance, and a defect rate kept below 3%, thereby improving product pass rates and quality.

Common Questions FAQ

Q1: Does this agricultural film granulator require prior shredding of used films?
A: No, the densifier equipped on this machine can directly process whole rolls or bundles of film, using high-speed rotating blades to cut and compact them into pellets, thus eliminating the need for prior shredding and saving both equipment and labor costs.
Q2: What is the equipment’s capacity range? Is customization available?
A: The standard model offers a capacity range of 100–1500 kg/h, and customization is also supported according to customer production needs, with no fixed price, allowing alignment with the production requirements of businesses of different scales.
Q3: How is the quality of the finished pellets? What is the defect rate?
A: The equipment features excellent venting and dehumidification, yielding finished pellets with moisture content ≤0.3%, bubble-free appearance, and a defect rate kept below 3%. Moreover, production scraps can be 100% recycled in a closed-loop system, maximizing resource utilization.
Q4: Which brands are used for the equipment’s core components? What is the warranty period?
A: Core components such as motors, bearings, and inverters are sourced from top international brands like Siemens, ABB, or domestic premium brands like NSK, SKF. The screw barrel is made from high-grade materials like 38CrMoAlA and treated with nitriding. The warranty period is 13 months from the date of the bill of lading.
Q5: What is the equipment’s delivery time?
A: The delivery time is 70–80 working days, adjustable according to specific customization requests.