Waste Sewing Thread Pelletizing Machine

Product Overview

The PURUI brand waste sewing thread pelletizing machine is a specialized resource recovery equipment designed for chemical fiber waste filaments and textile yarn scraps, originating from Nantong. This machine efficiently addresses industry challenges such as the tendency of fluffy fibers to entangle and bridge during feeding, and it accommodates various forms of textile waste, including short and long filaments and yarns. Through advanced processing techniques, it achieves 100% resource recovery and reuse of textile waste. The equipment can be customized according to customer production requirements, with standard capacities ranging from 200 to 1500 kg/h, meeting the processing needs of textile mills, chemical fiber plants, waste recycling enterprises, and other facilities of different scales. It also effectively reduces waste disposal costs, replaces virgin chemical fiber raw materials, and delivers significant economic and environmental benefits to businesses.

Technical Principle

The waste sewing thread pelletizing machine employs a complete process chain featuring a “front-end shredding unit + pre-compression feeding + single-screw extrusion.” A dedicated treatment procedure has been designed specifically for fluffy fiber waste: first, long filament waste is cut into short segments by the shredding unit, resolving the issue of long fibers winding during feeding; then, a pre-compression feeding mechanism compacts the fluffy short filaments, preventing bridging and ensuring stable material delivery; once inside the barrel, a high-shear screw structure breaks up fiber bundles, while segmented heating ensures thorough melting and plasticization, guaranteeing uniform fiber plasticization. The equipment is equipped with a vacuum degassing system that effectively removes oils, moisture, and volatiles adhering to the fiber surface, thus avoiding bubbles or broken strands during pelletizing. Finally, after multi-stage filtration to remove impurities, pellets are formed either by die-face cutting or strand-cutting extrusion followed by water cooling. The finished pellets have an impurity content of ≤1% and a moisture content of ≤0.3%, with stable quality meeting standards.

Performance Parameters

1. Standard capacity: 200–1500 kg/h
2. Compatible feedstocks: polyester, polypropylene, nylon, and other chemical fiber waste filaments and yarns, as well as fibrous and yarny scraps of varying lengths
3. Main motor power: 22–315 kW
4. Finished product specifications: impurity content ≤1%, moisture content ≤0.3%
5. Screw and barrel material: 38CrMoAlA alloy or bimetallic material, nitrogen-treated
6. Heating method: electric heating or electromagnetic heating
7. Heater materials: cast aluminum, cast copper, mica heaters, ceramic heaters
8. Motor brands: Siemens, ABB, Weg, or leading domestic brands
9. Pelletizing methods: die-face cutting or strand-cutting
10. Bearing brands: NSK, SKF, INA, FAG, or top domestic brands
11. Inverter brands: ABB, FUJI, Delta, Siemens
12. Delivery time: 70–80 working days
13. Warranty period: 13 months from the bill of lading date

Core Advantages

1. Exclusive feeding solution: front-end shredding plus pre-compression feeding thoroughly resolves industry pain points associated with fluffy, slender chemical fiber waste—namely, easy entanglement and bridging during feeding—ensuring stable, continuous material input.
2. High-quality finished products: the vacuum degassing system effectively removes oils and moisture, preventing bubbling or broken strands during pelletizing; the high-shear screw combined with segmented heating ensures thorough melting and uniform plasticization, resulting in pellets with impurity rates ≤1% and moisture levels ≤0.3%, maintaining consistent quality.
3. Wide compatibility with diverse feedstocks: capable of handling polyester waste filaments, polypropylene yarns, nylon waste filaments, textile yarn scraps, sewing thread waste, and other types of textile waste, offering broad applicability.
4. Efficient resource utilization: enables 100% resource recovery and reuse of textile waste, producing up to 36 tons of recycled pellets per day on a 24-hour basis, reducing annual purchases of virgin chemical fiber raw materials by over 1,200 tons and significantly lowering raw material costs.
5. Convenient operation and maintenance: compact design, core components sourced from international top-tier brands or high-quality domestic parts, ensuring stable and reliable operation, easy maintenance, and a 90% reduction in waste disposal costs, thereby easing burdens and boosting efficiency for enterprises.
6. Customized services: equipment can be tailored to meet specific customer production demands, aligning with the processing capabilities of businesses of varying sizes.

Core Value of the Product

1. Solves the challenge of textile waste disposal, achieving 100% resource recovery and reuse, complying with environmental policies and supporting green manufacturing.
2. Significantly reduces enterprise raw material costs, cutting annual purchases of virgin chemical fiber raw materials by over 1,200 tons while slashing waste disposal expenses by 90%, thereby expanding profit margins.
3. Consistently produces high-quality recycled pellets that can directly replace virgin chemical fiber raw materials, ensuring stable supply for downstream production.
4. Offers customizable capacity designs to suit the processing needs of enterprises of different scales, seamlessly integrating with textile mill scrap lines for smooth operations.

Target Customer Groups

Textile mills, chemical fiber plants, yarn processing facilities, textile waste recycling companies, chemical fiber regeneration enterprises, and any manufacturing company with a need for textile waste resource recovery.

Application Scenarios

This equipment is primarily used for recycling and pelletizing various types of textile waste, including polyester waste filaments, polypropylene yarns, nylon waste filaments, textile yarn scraps, sewing thread waste, chemical fiber long filaments, industrial fiber offcuts, and other forms of waste. It can be directly connected to scrap lines at textile mills and chemical fiber plants for immediate waste processing, and is also suitable for centralized processing by professional waste recycling companies, transforming dispersed textile waste into high-quality recycled pellets that serve as raw materials for downstream industries such as chemical fiber production and plastic product manufacturing, thus forming a complete resource circulation loop.

Solutions to Industry Pain Points

1. Addresses the issue of fluffy, slender chemical fiber waste easily entangling and bridging during feeding: a front-end shredding unit cuts long fibers, coupled with a pre-compression feeding mechanism that compacts incoming material, ensuring continuous, stable operation and preventing production interruptions caused by feeding malfunctions.
2. Tackles problems of oily, moist fibers prone to bubbling and breaking during pelletizing: the vacuum degassing system effectively removes oils, moisture, and volatile substances, while thorough melting and plasticization ensure bubble-free, uniformly shaped pellets.
3. Resolves high waste disposal costs and low resource utilization rates: achieves 100% resource recovery and reuse of waste, turning previously costly-to-dispose-of waste into recyclable raw materials that substitute virgin chemical fibers, while reducing waste disposal expenses by 90% and greatly improving resource efficiency.
4. Overcomes poor compatibility with diverse waste forms: handles short and long filaments, yarns, and other textile waste types without requiring additional adjustments to the equipment’s structure, adapting seamlessly to the waste types of various textile enterprises.

Common Questions FAQ

Q1: What kinds of feedstocks can this waste sewing thread pelletizing machine process?
A: The equipment is compatible with polyester, polypropylene, nylon, and other chemical fiber waste filaments and yarns, as well as fibrous and yarny scraps of varying lengths, including sewing thread waste, textile yarn scraps, chemical fiber long filaments, and industrial fiber offcuts.
Q2: What is the equipment’s capacity range? Does it support customization?
A: Standard capacity ranges from 200 to 1500 kg/h, and the machine can be custom-made according to customer production needs, matching the processing requirements of enterprises of different scales.
Q3: What is the quality of the finished pellets?
A: Finished pellets have an impurity content of ≤1% and a moisture content of ≤0.3%, are bubble-free and uniformly plasticized, and can directly replace virgin chemical fiber raw materials in downstream production.
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.
Q5: Which brands are used for the equipment’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.