Purui Nylon Film Pelletizing Machine

Product Overview

The PA nylon film pelletizing machine is a specialized device designed for the recycling and regeneration of waste films. It features an advanced densifier–pelletizing feed system that can directly process loose, bulk waste films in whole rolls or bundles, eliminating the need for prior shredding. Utilizing a unique integrated process combining a densifier with a single-screw extruder, the machine compacts and preheats the fluffy waste film before efficiently converting it into high-quality recycled pellets with a moisture content of ≤0.3% and excellent appearance. Standard models offer capacities ranging from 100 to 1,500 kg/h, meeting the production needs of recycling facilities of various sizes. This product is manufactured under the Nantong Purui brand, with core components sourced from internationally renowned brands, ensuring stable and reliable performance, thus providing an efficient, energy-saving solution for the waste plastic recycling industry.

Technical Principle

The PA nylon film pelletizing machine employs an integrated core process of densifier plus single-screw extrusion, enabling a complete processing flow from waste film to recycled pellets: First, the waste film enters the densifier (pelletizing hopper), where high-speed rotating blades cut and shred the material. As the material moves at high speed, friction generates heat, achieving self-heating. The fluffy film contracts and compacts into uniform pellets, increasing its bulk density by 3–5 times, ensuring smooth feeding into the extrusion screw. Subsequently, the compacted pellets enter the extrusion stage, undergoing segmented heating and screw shearing to achieve melt plasticization. A multi-stage filter with 80–120 mesh screens removes impurities while simultaneously venting moisture and gases, effectively eliminating water and contaminants from the material. Finally, the processed molten material is quenched and shaped by water cooling, then formed into uniform recycled pellets via die-face cutting or strand-cutting methods—entirely without additional shredding steps, resulting in a compact and highly efficient process.

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: 3–5 times
5. Finished pellet moisture content: ≤0.3%
6. Filtration precision: 80–120 mesh
7. Screw and barrel materials: 38CrMoAlA alloy or 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 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
16. Trademark/brand: PURUI
17. Country of origin: NANTONG

Core Advantages

1. Densifier feed system: The unique pelletizing feed design completely resolves issues of loose film slipping during feeding, ensuring more uniform and stable feeding, preventing fluctuations in output and equipment malfunctions caused by uneven feeding, thereby guaranteeing continuous production.
2. Self-friction preheating and plasticization: Within the densifier, high-speed friction generates heat, preheating the material. Once fed into the extrusion screw, plasticization efficiency is significantly enhanced, saving substantial heating energy compared to traditional pelletizing equipment—reducing electricity consumption by over 15% per ton processed, lowering operating costs.
3. Elimination of shredding step: Whole rolls or bundles of waste film can be directly fed into the machine, removing the need for separate shredding equipment and labor, greatly simplifying the processing workflow, reducing manpower costs by 1–2 operators, and minimizing space requirements and capital investment.
4. Efficient venting and dehumidification: A comprehensive venting and dehumidification system effectively removes moisture and volatile substances, resulting in finished pellets with moisture content ≤0.3%, free of bubbles and boasting excellent appearance, with a defect rate kept below 3%, satisfying market demand for high-quality recycled pellets.
5. Reliable core components: The screw and barrel are made of nitrogen-treated 38CrMoAlA alloy or bimetallic materials, offering superior wear resistance; motors, bearings, inverters, and other key parts are sourced from internationally recognized brands like Siemens, ABB, NSK, or leading domestic manufacturers, ensuring stable operation, fewer breakdowns, and extended service life.

Core Product Value

1. Simplified processing workflow: By eliminating the separate shredding step, reducing labor and equipment costs, this machine lowers the barriers to entry and operational expenses for recycling operations, boosting enterprise productivity.
2. Energy conservation and cost reduction: The self-friction preheating design dramatically improves plasticization efficiency, saving over 15% electricity per ton processed; long-term operation yields significant energy savings, aligning with green manufacturing principles.
3. High-quality output: Finished pellets feature low moisture, no bubbles, and excellent appearance, with a defect rate maintained below 3%; production scraps can be fully recycled back into the process, enhancing raw material utilization and product competitiveness.
4. Flexible capacity coverage: Standard models range from 100 kg/h to 1,500 kg/h, with a maximum daily output of up to 36 tons when running 24 hours a day, meeting diverse capacity needs—from small-scale recycling workshops to large-scale resource regeneration enterprises.
5. Stable and reliable performance: With core components from reputable brands and a warranty period of up to 13 months, the machine boasts low failure rates, minimizing downtime for maintenance and ensuring uninterrupted production.

Target Customer Groups

Plastic film manufacturers, waste plastic recycling plants, packaging material companies, resource regeneration firms, as well as any businesses involved in recycling and regenerating used PA nylon films, agricultural greenhouse films, packaging stretch films, etc. Whether you operate a small, artisanal recycling workshop or a large-scale resource regeneration enterprise, you can find a suitable model.

Application Scenarios

This equipment is applicable to the recycling and regeneration of various types of waste plastic films, including agricultural greenhouse films, packaging stretch films, BOPP/CPP industrial films, courier plastic bags, heat-shrink films, and more. It demonstrates particularly strong adaptability for processing PA nylon films. Whether dealing with scattered scraps or bulk rolls and bundles, the machine can directly handle them, transforming waste film into high-quality recycled pellets. These pellets can be reused to manufacture plastic containers, packaging materials, industrial components, and other plastic products, closing the loop on resource circulation.

Solutions to Industry Pain Points

1. Solving the issue of loose film feeding: Traditional pelletizing equipment often encounters problems such as slippage and uneven feeding when handling fluffy films, leading to unstable output. Purui’s densifier–pelletizing feed system compacts loose material, increasing bulk density by 3–5 times and ensuring uniform, stable feeding, thoroughly resolving feeding challenges.
2. Reducing costs by eliminating the shredding step: Conventional waste film pelletizing requires prior shredding, adding equipment expenses, labor costs, and extra processing time. This machine can directly process whole rolls and bundles, bypassing the shredding step, reducing the need for 1–2 operators, and cutting overall operating costs.
3. Enhancing plasticization efficiency and capacity: Traditional equipment relies on external heating for plasticization, often resulting in incomplete plasticization and low output. This machine uses self-friction preheating, significantly improving plasticization efficiency once the material enters the screw, saving over 15% electricity per ton processed, with a maximum daily output of up to 36 tons when running 24 hours, effectively boosting enterprise capacity.
4. Addressing excessive bubble formation in pellets: Traditional equipment has poor venting and dehumidification, causing pellets to contain many bubbles and resulting in high defect rates. This machine is equipped with a sophisticated venting and dehumidification system, producing pellets with moisture content ≤0.3%, free of bubbles and boasting excellent appearance, keeping the defect rate below 3%, thereby elevating product quality.

Frequently Asked Questions (FAQ)

Q1: Can this PA nylon film pelletizing machine directly process whole rolls of waste film?
A: Yes, the machine’s built-in densifier can handle entire rolls and bundles of waste film without requiring prior shredding, greatly streamlining the processing workflow.
Q2: What is the moisture content of the finished pellets?
A: Equipped with an efficient venting and dehumidification system, the finished pellets maintain a moisture content of ≤0.3%, free of bubbles and exhibiting excellent appearance, fully meeting the requirements for high-quality recycled pellets.
Q3: What is the machine’s capacity range?
A: Standard models cover 100–1,500 kg/h, with a maximum daily output of up to 36 tons when running 24 hours, allowing enterprises to select a model suited to their specific production needs.
Q4: Which brands are used for the machine’s core components?
A: Motors can be selected from Siemens, ABB, Weg, or leading domestic brands; bearings from NSK, SKF, INA, FAG, or top domestic brands; inverters from ABB, FUJI, Delta, or Siemens, ensuring stable and reliable operation.
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, providing ample time for production preparation and after-sales support.