Industrial Hard Plastic Scrap Granulator

Product Overview

The industrial hard plastic scrap granulator is a single-screw, dedicated recycling granulation machine for rigid plastic sheet materials. It is specifically designed for rigid plastic fragments that have already undergone preliminary crushing, allowing direct integration with crushed material to perform unified granulation operations and produce uniform, stable recycled pellets. The equipment is compatible with various rigid plastic wastes such as HDPE, PP, and ABS, offering a broad capacity range of 100–2000 kg/h, with motor power ranging from 30 to 355 kW. It supports continuous 24-hour production, meeting the recycled pellet production needs of enterprises of different scales. Manufactured under the PURUI brand and originating from NANTONG, the core components are sourced from top-tier international brands, ensuring stable and reliable operation. This makes it an efficient, specialized device in the field of rigid plastic recycling and regeneration.

Technical Principle

This granulator employs a mature single-screw extrusion process, suitable for pre-crushed rigid plastic sheets. Materials require no additional preprocessing and can be directly fed into the hopper and then into the barrel. Equipped with segmented ceramic heating zones, it achieves precise temperature control; combined with shear friction generated by screw rotation, this ensures thorough melting and plasticization of the rigid plastics, resulting in uniformly plasticized material with high density. The molten material then passes through multi-stage filter dies, effectively removing sand, impurities, and other foreign matter, achieving a finished pellet impurity content of ≤1%. Additionally, an exhaust system removes moisture and volatile substances, further enhancing pellet quality. Finally, the molten material is water-cooled and shaped before being cut into pellets by the cutting system, yielding pellets with size uniformity ≥95%, fully meeting the quality requirements for recycled plastic pellets.

Core Configuration Parameters

1. Trademark/Brand: PURUI
2. Origin: NANTONG
3. Screw Barrel Material: 38CrMoAlA or bimetallic material, nitrogen-treated
4. Heating Method: Electric heating, electromagnetic heating
5. Heater Material: Cast aluminum, cast copper, mica, ceramic heaters
6. Motor Brand: Siemens, ABB, Weg, or leading domestic brands
7. Pellet Cutting Method: Die-face cutting, strand-cutting
8. Bearing Brand: NSK, SKF, INA, FAG, or top domestic brands
9. Inverter Brand: ABB, FUJI, Delta, Siemens
10. Capacity Range: 100–2000 kg/h
11. Main Motor Power: 30–355 kW
12. Finished Pellet Impurity Content: ≤1%
13. Pellet Size Uniformity: ≥95%
14. Delivery Time: 70–80 working days
15. Warranty Period: 13 months from the bill of lading date

Core Advantages

1. Mature and Stable Single-Screw Structure: Featuring a market-proven single-screw design, this equipment boasts low failure rates and strong operational stability, with annual downtime averaging less than 72 hours—60% better than comparable models—ensuring uninterrupted production.
2. Direct Integration with Crushed Material, Streamlined Processes: No need for a separate crushing unit; it can directly process pre-crushed plastic fragments, eliminating the inefficient secondary handling step after crushing, simplifying the workflow, and boosting overall efficiency.
3. Wear-Resistant Screw Design, Extended Service Life: The screw barrel is made of 38CrMoAlA or bimetallic material and undergoes nitrogen treatment, capable of withstanding the high-friction conditions of rigid materials. Alloy screws typically last over two years, reducing consumable replacement costs by 40%, making long-term use highly cost-effective.
4. Thorough Plasticization, Superior Pellet Quality: Through precise temperature control and the dual action of screw shear friction, rigid plastics are thoroughly melted and plasticized. Combined with multi-stage filtration and an exhaust system, the finished pellets achieve impurity levels ≤1% and size uniformity ≥95%, with high density and consistent quality.
5. Low Maintenance Threshold, Outstanding Cost-Effectiveness: With a simple, well-designed structure, routine operation and maintenance are straightforward, requiring no specialized technicians for basic upkeep. Core components are sourced from top-tier brands, balancing reliability with cost control, delivering clear overall value.
6. Broad Capacity Range, Support for Continuous Production: Offering a wide capacity range of 100–2000 kg/h, configurations can be customized according to customer output needs. A single unit can produce up to 40 tons per day and supports 24-hour continuous operation, meeting the production demands of businesses of all sizes.

Core Product Value

1. Simplifies production processes, eliminates the inefficiency of secondary handling for crushed materials, boosts overall productivity, and reduces labor and logistics costs.
2. The wear-resistant screw design significantly extends the service life of key components, lowering consumable replacement expenses and saving substantial long-term maintenance costs.
3. Stable performance and superior pellet quality ensure consistent production of high-quality recycled pellets, enhancing product competitiveness in the market.
4. A broad capacity range accommodates diverse enterprise production needs, supporting 24-hour continuous operation and helping companies scale up production.
5. Top-tier branded core components paired with a 13-month warranty provide reliable assurance for long-term stable operation, alleviating enterprises’ concerns about future maintenance.

Target Customer Base

This equipment targets hard plastic recycling plants, plastic crushing enterprises, manufacturers of daily-use plastic products, industrial solid waste treatment facilities, and recycled pellet production plants. It is especially suited for businesses with preliminary crushing stages that require efficient hard plastic recycling granulation, helping them turn rigid plastic waste into valuable resources while improving both economic and environmental benefits of waste recycling.

Application Scenarios

The industrial hard plastic scrap granulator is applicable to various scenarios involving the recycling granulation of pre-crushed rigid materials, including HDPE plastic bucket fragments, PE pipe scraps, PP turnover box pieces, ABS/PS industrial edge scraps, PC engineering plastic fragments, and other types of rigid plastic waste. Whether for small-scale production at medium-sized recycling plants or large-scale continuous manufacturing at major recycled pellet producers, this equipment adapts to corresponding operating conditions, consistently producing high-quality recycled pellets and enabling the circular utilization of rigid plastic waste.

Solutions to Industry Pain Points

1. Addressing the inefficiency of secondary handling after crushing: By directly integrating with pre-crushed materials, this equipment eliminates the need for transferring crushed waste, streamlining workflows, improving process coordination, and reducing labor and logistics costs.
2. Solving the problem of ordinary screws failing under the abrasion of rigid materials and high replacement costs: Utilizing nitrogen-treated 38CrMoAlA or bimetallic screw barrels with excellent wear resistance, these components typically last over two years, reducing consumable replacement costs by 40% and significantly cutting long-term maintenance expenses.
3. Tackling the complexity of equipment structures and the difficulty of routine maintenance: Featuring a mature, stable single-screw design with a simple, well-thought-out layout, this equipment lowers the threshold for daily operation and maintenance, allowing basic upkeep without specialized technicians, thereby reducing enterprise maintenance costs and technical barriers.
4. Resolving unstable quality of recycled pellets: Through coordinated efforts of precise temperature control, thorough plasticization, multi-stage filtration, and an exhaust system, the finished pellets achieve impurity levels ≤1% and size uniformity ≥95%, ensuring consistently excellent pellet quality and enhancing market recognition.

Frequently Asked Questions (FAQ)

Q1: Can this granulator process uncrushed rigid plastic scraps directly?
A: No, this equipment is specifically designed for rigid plastic sheet materials that have already undergone preliminary crushing. It must be used in conjunction with pre-crushing equipment and cannot directly process intact rigid plastic scraps.
Q2: What is the equipment’s capacity range? Can it be customized according to demand?
A: The standard capacity range is 100–2000 kg/h, with individual units capable of producing up to 40 tons per day. Custom configurations can be tailored based on specific customer production needs.
Q3: How long do the core components last?
A: Alloy screws typically last over two years, while core components like motors and bearings are sourced from top-tier brands such as Siemens, ABB, and NSK. With proper routine maintenance, long-term stable operation can be ensured, with annual downtime averaging less than 72 hours.
Q4: What is the product’s warranty period?
A: The warranty lasts 13 months from the bill of lading date, covering repairs and replacement parts for non-human-caused quality issues during the warranty period.
Q5: Which pellet cutting methods does the equipment support?
A: The equipment supports both die-face cutting and strand-cutting methods, allowing users to select the most appropriate mode based on production requirements and pellet type.