PP Hard Material Recycling Pelletizer

Product Overview

The PP hard material recycling pelletizer is a single-screw specialized regenerative pelletizing machine designed specifically for rigid plastic sheet materials that have already undergone preliminary crushing. It can directly process crushed materials to perform integrated pelletizing operations, producing uniform and stable recycled pellets. The equipment is compatible with various rigid plastic wastes such as HDPE, PP, and ABS, offering a wide capacity range of 100–2000 kg/h, with main motor power ranging from 30 to 355 kW. It supports 24-hour continuous production, delivering finished pellets with impurity content ≤1% and particle size uniformity ≥95%, providing efficient and reliable regeneration solutions for diverse rigid plastic recycling applications.

Technical Principle

This equipment employs a single-screw extrusion process, optimized for pre-crushed rigid plastic sheets. During operation, the material is fed directly into the hopper and enters the barrel, where segmented ceramic heating zones precisely control temperature. Combined with shear friction generated by screw rotation, the rigid plastic is thoroughly melted and plasticized. Subsequently, multi-stage filter dies remove sand and impurities, while venting systems eliminate moisture and volatile components, preventing bubbles or excessive impurities in the final pellets. Finally, the molten material is water-cooled and shaped before being cut into pellets, completing the full transformation process from crushed hard material to qualified recycled pellets.

Core Configuration Parameters

1. Trademark/Brand: PURUI
2. Country of Origin: NANTONG
3. Screw Barrel Material: 38CrMoAlA alloy 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. Particle 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 Design: The equipment adopts a market-proven single-screw configuration, featuring low failure rates and strong production stability. Annual downtime due to malfunctions is less than 72 hours, improving overall production stability by 60% compared to conventional machines, ensuring long-term continuous operation.
2. Direct Processing of Pre-Crushed Materials: No need for an additional crushing unit; it can directly handle pre-crushed plastic fragments, eliminating the secondary transportation step after crushing. This addresses the industry’s pain point of inefficient process integration and boosts overall production efficiency.
3. Wear-Resistant and Durable Screw Assembly: The screw is made of 38CrMoAlA alloy or bimetallic material, nitrogen-treated to withstand high-intensity friction from hard materials. Alloy screws typically last over two years, reducing replacement costs by 40% compared to standard screws, resulting in lower long-term operating expenses.
4. Excellent Plasticization and Pellet Quality: Precise temperature control combined with screw shear friction ensures thorough melting and plasticization of rigid plastics, yielding dense finished pellets with impurity content ≤1% and particle size uniformity ≥95%, meeting the raw material quality requirements of downstream plastic product manufacturers.
5. Low Maintenance Threshold and High Cost-Effectiveness: With its simple structural design, routine maintenance is straightforward, requiring no specialized technical team for basic upkeep. Coupled with high productivity and stable performance, this equipment offers outstanding cost-effectiveness, making it ideal for small and medium-sized recycled pellet producers.

Core Product Value

1. Streamlined Production Process: By directly processing crushed materials and eliminating the need for secondary transport, it enhances overall efficiency in rigid plastic recycling, reducing labor and logistics costs.
2. Reduced Long-Term Operating Costs: With wear-resistant screws lasting over two years, reduced replacement costs by 40%, and shorter annual downtime, the equipment significantly lowers comprehensive operating expenses.
3. Consistent Production of High-Quality Pellets: Finished pellets feature low impurity levels and high uniformity, making them suitable as raw materials for plastic product manufacturers and boosting the market competitiveness of recycled pellets.
4. High Capacity to Meet Scalable Demands: Each unit can produce up to 40 tons per day, supporting 24-hour continuous operation, fully satisfying large-scale rigid plastic recycling needs.

Target Customer Groups

The primary target customer groups include rigid plastic recycling plants, plastic crushing enterprises, daily-use plastic product manufacturers, industrial solid waste treatment companies, and recycled pellet producers—businesses that all face substantial demand for processing rigid plastic waste. The equipment’s high efficiency and adaptability perfectly align with their operational scenarios.

Application Scenarios

The PP hard material recycling pelletizer is suitable for regenerating pellets from various types of pre-crushed rigid plastic waste, including HDPE plastic bucket fragments, PE pipe scraps, PP turnover box pieces, ABS/PS industrial edge scraps, PC engineering plastic fragments, and more. Whether handling batch processing at small recycling facilities or large-scale operations at major solid waste management companies, the equipment can flexibly adapt to different capacity requirements, consistently producing qualified recycled pellets.

Solutions to Industry Pain Points

1. Addressing Inefficient Secondary Transportation After Crushing: The equipment can directly process pre-crushed materials without intermediate transfer steps, shortening the production workflow, increasing operational efficiency, and reducing labor and material losses during transit.
2. Solving the Problem of Ordinary Screws Not Withstanding Hard Material Wear: Utilizing nitrogen-treated 38CrMoAlA alloy or bimetallic screws, which offer superior wear resistance and a service life exceeding two years, significantly lowering screw replacement costs and minimizing equipment downtime for maintenance.
3. Tackling Complex Equipment Structures and High Maintenance Difficulty: Featuring a simple yet mature single-screw design, routine maintenance is straightforward, allowing non-specialist personnel to perform basic upkeep and troubleshooting, thereby reducing operational barriers and labor costs for businesses.
4. Resolving Unstable Quality of Recycled Pellets: Through precise temperature control, multi-stage filtration, and venting systems, the equipment effectively removes impurities and moisture, ensuring finished pellets meet downstream production quality standards with impurity content ≤1% and particle size uniformity ≥95%.

Frequently Asked Questions (FAQ)

Q1: What types of plastic raw materials can this pelletizer process?
A: The equipment is compatible with HDPE, PP, ABS, and other rigid plastic wastes. As long as the plastic has undergone preliminary crushing, it can be directly fed into the machine for pelletizing.
Q2: What is the equipment’s capacity range, and can it meet large-scale production demands?
A: The equipment covers a capacity range of 100–2000 kg/h, with each unit capable of producing up to 40 tons per day and supporting 24-hour continuous operation, fully satisfying large-scale rigid plastic recycling needs.
Q3: How long is the warranty period, and what is the service life of core components?
A: The warranty lasts 13 months from the date of the bill of lading. The core screw is made of wear-resistant material and typically lasts over two years, while replacement costs for consumables are 40% lower than those of standard equipment.
Q4: What pellet cutting methods are available?
A: The equipment offers die-face cutting and strand-cutting options, allowing flexible selection based on production needs and intended pellet applications.
Q5: What is the delivery time for the equipment?
A: Delivery takes 70–80 working days, with production and commissioning completed according to customized client requirements before shipment.