PET Water Bottle Flake Granulator

Product Overview

The PET water bottle flake granulator is a customized low-temperature extrusion granulation machine specially developed for PET bottle flake waste. It has no fixed price and is custom-made according to the customer’s production requirements. The equipment adopts a single-screw extrusion process, paired with a segmented precision temperature control system, enabling material melting and plasticization within a low-temperature range of 240–270°C. This minimizes PET thermal degradation, ensuring that the finished granules retain a characteristic viscosity (IV value) retention rate of ≥85%. Additionally, the equipment is equipped with a multi-stage vacuum degassing structure and a multi-level high-precision filter die, effectively removing residual moisture, low-molecular substances, and fine impurities. Ultimately, it can produce high-purity, uniformly shaped, and transparent PET recycled granules through either water-cooled strand cutting or underwater pelletizing, meeting the reuse requirements of spinning, injection molding, and other applications. It is a core piece of equipment in the field of PET bottle flake recycling and regeneration.

Technical Principle

This granulator operates based on a single-screw extrusion process, suitable for various types of cleaned and dried PET bottle flake materials, including cold-washed and hot-washed mineral water bottle flakes, beverage bottle flakes, edible oil bottle flakes, PET industrial scrap, as well as transparent and colored PET bottle flakes. Its segmented precision temperature control system accurately manages the low-temperature processing range of 240–270°C, preventing excessive degradation of PET materials due to high temperatures and maximizing the preservation of their characteristic viscosity. The multi-stage vacuum degassing structure continuously removes residual moisture and low-molecular volatiles from the material, further enhancing the purity of the recycled granules. The multi-level high-precision filter die achieves a filtration accuracy of up to 150 mesh, thoroughly eliminating fine impurities and ensuring the cleanliness of the finished granules. Finally, granulation is completed via either die-face cutting or strand cutting, guaranteeing uniform particle shape and stable appearance to meet the needs of different downstream applications.

Performance Parameters

1. Standard capacity: 300–2000 kg/h
2. Processing temperature range: 240–270°C
3. Finished granule characteristic viscosity (IV value) retention rate: ≥85%
4. Impurity content: ≤0.5%
5. Maximum filtration accuracy: 150 mesh
6. Main motor power: 37–355 kW
7. Compatible raw materials: cold-washed and hot-washed PET bottle flakes of all types
8. Screw and barrel materials: 38CrMoAlA alloy and bimetallic materials, nitrogen-treated
9. Heating methods: electric heating and electromagnetic heating
10. Heater materials: cast aluminum, cast copper, mica heaters, ceramic heaters
11. Motor brands: Siemens, ABB, Weg, or leading domestic brands
12. Pelletizing methods: die-face cutting, strand cutting
13. Bearing brands: NSK, SKF, INA, FAG, or top domestic brands
14. Inverter brands: ABB, FUJI, Delta, Siemens
15. Delivery period: 70–80 working days
16. Warranty period: 13 months from the bill of lading date
17. Trademark/brand: PURUI
18. Place of origin: NANTONG

Core Advantages

1. Low-temperature plasticization reduces degradation: By employing a low-temperature extrusion process at 240–270°C, it effectively minimizes PET thermal degradation, achieving an IV value retention rate of ≥85%, thus ensuring high performance of the recycled granules and enabling direct use in high-end applications such as spinning and injection molding.
2. Multi-level high-precision filtration: With a maximum filtration accuracy of 150 mesh and a multi-stage vacuum degassing system, the finished granules have an impurity content of ≤0.5%, exhibiting high purity and uniform, bright appearance, making them suitable for entry into high-end downstream markets.
3. Compatibility with all types of raw materials: It accommodates cold-washed and hot-washed mineral water bottle flakes, beverage bottle flakes, edible oil bottle flakes, PET industrial scrap, as well as transparent and colored PET bottle flakes, offering broad applicability.
4. Customizable capacity configuration: It can be tailored to meet specific customer production needs, with standard capacities ranging from 300 to 2000 kg/h, allowing for a maximum daily output of 48 tons of PET recycled granules over 24 hours, satisfying the production demands of enterprises of varying scales.
5. High added-value output: With recycled materials meeting performance standards, the value of waste reuse increases by more than 40%, enabling substitution for virgin PET raw materials, helping companies reduce annual virgin PET procurement by over 10,000 tons, thereby lowering production costs while enhancing market competitiveness.

Core Product Value

1. The low-temperature process ensures a high IV value, allowing the recycled material to be directly used in high-end applications such as spinning and injection molding, breaking the traditional limitation that recycled materials could only serve the low-end market and increasing product added value.
2. High-precision filtration and vacuum degassing technologies produce high-purity, low-impurity PET recycled granules, meeting the quality requirements of high-end sectors such as food packaging and chemical fiber raw materials.
3. Customized capacity design adapts to the production needs of enterprises of different sizes, enabling efficient and stable PET bottle flake recycling and regeneration.
4. Significantly enhances the value of waste reuse, reducing reliance on virgin PET raw materials, helping companies cut costs and embrace green, environmentally friendly production practices.

Target Customer Groups

PET bottle flake recycling plants, chemical fiber raw material enterprises, food packaging recycling companies, large-scale recycled plastic processing facilities, polyester recycling resource enterprises, as well as businesses of all sizes with PET bottle flake recycling and regeneration needs.

Application Scenarios

This equipment is primarily used in scenarios involving the recycling and granulation of mineral water bottle flakes, beverage bottle flakes, edible oil bottle flakes, PET industrial scrap, cold- and hot-washed PET bottle flakes, as well as transparent and colored PET bottle flakes. The resulting high-purity PET recycled granules can be directly utilized in spinning to produce chemical fiber raw materials, in injection molding to manufacture food packaging containers, and in producing various PET plastic products, covering the entire application chain from basic recycling processes to high-end material regeneration.

Solving Industry Pain Points

1. Addressing the issue of PET easily yellowing and losing significant characteristic viscosity due to high-temperature degradation, which prevents recycled materials from meeting high-end market standards: The equipment employs a low-temperature plasticization process at 240–270°C, ensuring an IV value retention rate of ≥85%, enabling recycled materials to meet the demands of high-end spinning and injection molding.
2. Solving the problem of insufficient filtration accuracy and excessive impurities in conventional equipment, resulting in uneven quality of recycled materials: The multi-level high-precision filter die achieves a filtration accuracy of up to 150 mesh, combined with a multi-stage vacuum degassing system, keeping the finished granules’ impurity content at ≤0.5%, ensuring uniformity, brightness, and stable appearance.
3. Overcoming the challenge of low added value in traditional recycled materials, which could only serve the low-end market: High-purity, high-performance recycled materials can now enter high-end sectors such as chemical fibers and food packaging, increasing the value of waste reuse by more than 40% and significantly expanding corporate profit margins.
4. Resolving the issue of fixed equipment capacity that fails to match the diverse production scale needs of different enterprises: The equipment supports customization based on customer production requirements, with capacities ranging from 300 to 2000 kg/h, catering to everything from small recycling plants to large-scale resource regeneration enterprises.

Frequently Asked Questions (FAQ)

Q1: Is the price of this PET water bottle flake granulator fixed?
A: This equipment is a custom product with no fixed price; pricing will be determined based on factors such as the customer’s production volume and configuration preferences.
Q2: What applications can the PET recycled granules produced by this equipment serve?
A: With a characteristic viscosity retention rate of ≥85% and an impurity content of ≤0.5%, the recycled granules can be directly used in spinning to produce chemical fiber raw materials, in injection molding to manufacture food packaging containers, and in producing various PET plastic products, among many other potential applications.
Q3: What types of PET bottle flake raw materials can this equipment process?
A: The equipment is compatible with cold-washed and hot-washed mineral water bottle flakes, beverage bottle flakes, edible oil bottle flakes, PET industrial scrap, as well as transparent and colored PET bottle flakes—covering all categories of PET bottle flake materials.
Q4: What are the delivery period and warranty period for this equipment?
A: The delivery period is 70–80 working days, and the warranty period is 13 months from the date of the bill of lading.
Q5: What is the capacity range of this equipment?
A: The standard capacity ranges from 300 to 2000 kg/h, with a maximum daily output of 48 tons of PET recycled granules over 24 hours. Capacity configurations can be customized according to customer needs.