PET Beverage Bottle Flake Recycling Pelletizing Machine

Product Overview

This PET beverage bottle flake recycling pelletizing machine is a customized low-temperature extrusion pelletizing device developed by the PURUI brand specifically for PET bottle flake waste. It originates from Nantong. Relying on single-screw extrusion technology and a segmented precision temperature control system, the equipment completes material melting and plasticization within a low-temperature range of 240–270°C, minimizing PET thermal degradation and ensuring that the finished pellets maintain an intrinsic viscosity (IV value) retention rate of ≥85%. Meanwhile, through multi-stage high-precision filtration and multi-section vacuum degassing structures, it effectively removes impurities and residual moisture, producing high-purity, stable-quality PET recycled pellets that meet the reuse requirements of spinning, injection molding, and other applications. The equipment supports customization according to customer production capacity needs, with standard capacities ranging from 300 to 2,000 kg/h, and is compatible with both cold-washed and hot-washed PET bottle flake raw materials, helping recycled plastics companies enhance the value of waste recycling.

Technical Principle

The equipment employs single-screw extrusion technology and is suitable for PET bottle flake raw materials that have been cleaned and dried. Its core workflow consists of four main stages: First, the segmented precision temperature control system stabilizes the processing temperature within the low-temperature range of 240–270°C, completing material melting and plasticization. Compared with conventional high-temperature pelletizing processes, this significantly reduces thermal degradation of PET material and prevents excessive loss of intrinsic viscosity. Second, a multi-section vacuum degassing structure continuously removes residual moisture and low-molecular volatile substances from the material, ensuring bubble-free pellets with qualified purity. Next, after passing through a multi-stage high-precision filter die, with filtration accuracy up to 150 mesh, fine impurities in the raw material are effectively removed, enhancing pellet cleanliness. Finally, depending on customer requirements, either water-cooled strand cutting or die-face cutting can be selected, guaranteeing uniform, transparent, and stable-quality finished pellets that meet the usage demands of various downstream applications.

Core Configuration Parameters

1. Brand Trademark: PURUI
2. Place of Origin: Nantong
3. Screw Barrel Material: 38CrMoAlA bimetallic material, nitrided
4. Heating Method: Electric heating or electromagnetic heating options available
5. Heater Material: Cast aluminum, cast copper, mica, or ceramic heaters available
6. Motor Brand: Siemens, ABB, Weg, or leading domestic brands
7. Pelletizing Method: Die-face cutting or strand cutting options available
8. Bearing Brand: NSK, SKF, INA, FAG, or top domestic brands
9. Inverter Brand: ABB, Fuji, Delta, Siemens
10. Delivery Period: 70–80 working days
11. Warranty Period: 13 months from the bill of lading date

Core Performance Data

1. Standard Capacity: 300–2,000 kg/h
2. Processing Temperature Range: 240–270°C
3. Finished Pellets IV Value Retention Rate: ≥85%
4. Finished Pellets Impurity Content: ≤0.5%
5. Maximum Filtration Precision: 150 mesh
6. Main Unit Power: 37–355 kW
7. Compatible Raw Materials: Cold-washed and hot-washed PET bottle flakes

Core Advantages

1. Low-Temperature Plasticization Protection: Utilizing a low-temperature extrusion process at 240–270°C, it reduces PET thermal degradation and intrinsic viscosity loss, achieving an IV value retention rate of ≥85%, enabling recycled materials to rival virgin materials and meet the demands of high-end processing such as spinning and injection molding.
2. Multi-Stage Filtration for High Purity: Featuring a high-precision filter die up to 150 mesh, combined with a vacuum degassing structure, resulting in finished pellets with impurity content ≤0.5%, uniform transparency, and stable quality, making them suitable for entry into high-end downstream markets.
3. Full Raw Material Compatibility: Supports recycling and pelletizing of all types of PET waste, including mineral water bottle flakes, beverage bottle flakes, edible oil bottle flakes, industrial PET scraps, cold- and hot-washed PET bottle flakes, and clear/colored PET bottle flakes, offering broad applicability across various scenarios.
4. Customized Capacity Configuration: Equipment can be tailored to meet specific customer production capacity needs, covering 300–2,000 kg/h, thus satisfying the production requirements of recycling enterprises of different scales.
5. Stable Operation with High-End Components: Core components are sourced from international first-tier brands like Siemens, ABB, or domestic premium parts, ensuring stable operation, a delivery period of 70–80 working days, a 13-month warranty, and reliable after-sales service.

Core Product Value

1. With a high IV value retention rate, recycled materials can be directly used in high-end processing such as spinning and injection molding, increasing the value of waste recycling by over 40% and helping enterprises transition from low-end raw material suppliers to high-end recycled material service providers.
2. With 24-hour continuous production, daily output of PET recycled pellets can reach up to 48 tons, greatly improving production efficiency and reducing per-unit energy costs.
3. By annually reducing virgin PET raw material procurement by more than 10,000 tons, it helps enterprises practice green environmental principles while lowering raw material purchasing costs and enhancing market competitiveness.
4. Customized capacity design precisely matches enterprise production scale, avoiding underutilization or oversupply and optimizing production layout.

Target Customer Groups

PET bottle flake recycling plants, chemical fiber raw material enterprises, food packaging recycling companies, large-scale recycled plastics processing plants, polyester recycling resource enterprises, as well as various recycling resource processing enterprises with demand for PET waste recycling and pelletizing.

Application Scenarios

This equipment is suitable for recycling and pelletizing various PET bottle flake wastes, including mineral water bottle flakes, beverage bottle flakes, edible oil bottle flakes, industrial PET scraps, cold- and hot-washed PET bottle flakes, and clear/colored PET bottle flakes. The resulting high-purity PET recycled pellets can be directly applied in spinning to produce chemical fiber raw materials, injection molding to manufacture food packaging containers, and production of PET sheets, meeting the raw material needs of high-end downstream markets.

Solutions to Industry Pain Points

1. Addressing the pain points of PET high-temperature pelletizing—easy yellowing due to degradation, significant loss of intrinsic viscosity, and substandard performance of recycled materials: The equipment adopts a low-temperature plasticization process at 240–270°C, with precise temperature control to reduce thermal degradation, achieving an IV value retention rate of ≥85% and ensuring that recycled materials meet the performance requirements of high-end processing.
2. Solving the problem of insufficient filtration precision and excessive impurities in ordinary pelletizing equipment, which prevents entry into high-end downstream markets: Featuring a multi-stage high-precision filter die with filtration accuracy up to 150 mesh, coupled with a vacuum degassing structure, resulting in finished pellets with impurity content ≤0.5%, uniform transparency, and stable quality, meeting the raw material standards required for spinning, food packaging, and other high-end applications.
3. Tackling the issue of low added value of recycled materials, which can only supply low-end markets: High-IV-value, high-purity recycled materials can directly replace part of virgin materials, increasing the value of recycling by over 40% and helping enterprises expand their high-end customer base and boost product profit margins.

Frequently Asked Questions (FAQ)

Q1: What types of PET raw materials can this pelletizing machine process?
A: The equipment is compatible with both cold-washed and hot-washed PET bottle flakes, including mineral water bottle flakes, beverage bottle flakes, edible oil bottle flakes, industrial PET scraps, and clear/colored PET bottle flakes—covering all categories of PET waste.
Q2: What is the intrinsic viscosity retention rate of the finished pellets?
A: Through the low-temperature plasticization process, the finished pellets maintain an intrinsic viscosity (IV value) retention rate of ≥85%, meeting the performance requirements of high-end processing such as spinning and injection molding.
Q3: What is the capacity range of the equipment? Can it be customized?
A: Standard capacity ranges from 300 to 2,000 kg/h, and customization is available based on customer production needs, precisely matching enterprise production scale.
Q4: What are the delivery period and warranty period?
A: The delivery period is 70–80 working days, and the warranty lasts 13 months from the bill of lading date. Core components are sourced from international first-tier brands, ensuring stable operation and reliable support.
Q5: In what scenarios can the produced recycled pellets be used?
A: High-purity, high-IV-value recycled pellets can be directly applied in spinning to produce chemical fiber raw materials, injection molding to manufacture food packaging containers, and production of PET sheets, among other applications, meeting the demands of high-end downstream markets.