Co-Rotating Twin Screw Plastic Pelletiser: Technical Analysis and Global Trends
Release time:
2025-04-10 15:17
Co-rotating twin screw plastic pelletisers have become the core equipment in the field of plastics recycling and modification due to their high mixing efficiency and stable output. The global market size is expected to exceed USD 4.8 billion in 2028 (Grand View Research data). This article combines domestic and international technological developments, analyses their working principles, application scenarios and selection strategies, and compares the performance differences between Chinese plastic granulator manufacturers and international brands.
Core Advantages of Co-Rotating Twin Screw Technology
Why choose twin-screw design?
The unique advantages of the co-rotating twin screw plastic pelletizer over traditional single-screw equipment include:
- Efficient mixing: 3 times higher shear force in the twin-screw engagement zone ensures uniform material plasticisation.
- Self-cleaning function: Reverse thread design between the screws reduces carbonisation residue and downtime maintenance frequency by 40%.
- Wide applicability: can process PE, PP, ABS and biodegradable plastics (e.g. PLA/PBAT).
For example, a modified plastics factory uses a twin-screw machine to produce flame-retardant ABS pellets with a capacity of 500kg/h and a yield rate of 98.5%.
Application Scenarios and Supporting Equipment Synergy
Mainstream Industry Solutions
- Recycled plastic recycling: combined with stretch film machine, waste film crushing-melting-pelletising is integrated.
- Engineering plastics modification: add glass fibre or flame retardant to produce high-strength composite materials.
- Bio-based materials: adapt PLA/PHA and other biodegradable resins to meet EU environmental regulations.
Supporting Equipment Integration
- Pre-processor: with Wintech stretch film rewinder to recycle waste film and reduce raw material waste.
- auxiliary system: automatic feeder and pelletiser are combined to achieve unmanned operation in the whole process.
Domestic and foreign brands technology comparison and purchase guide
Analysis of key performance indicators
Selection of co-rotating twin screw plastic pelletizer need to pay attention to:
- L/D ratio (L/D): 40:1-52:1 for mainstream models, the higher the ratio the better the mixing effect.
- Screw speed: 500-1200rpm, affecting capacity and material heat history.
- Temperature control precision: within ±1℃ to avoid material degradation.
Global Brand Competitiveness Comparison in 2025
Brand/Model |
Maximum capacity(kg/h) |
Power (kW) |
Applicable Materials |
Price range (USD million) |
Germany Coperion ZSK Series |
2000 |
250 |
Engineering plastics/speciality resins |
50-80 |
China Jinfa Technology JFE-75 |
800 |
90 |
General Plastics/Recycled Materials |
12-18 |
JSW TX Series, Japan |
1500 |
180 |
Highly filled composites |
35-60 |
Small Plastic Pelletiser Representative |
300 |
30 |
Film/bottle flakes |
2.5-5 |
Source: Plastics Today Industry Report
The Rise of Chinese Manufacturers and Technological Breakthroughs
Localised Innovation Paths
China's plastic granulator manufacturers are capturing the market through three main strategies:
- Cost Advantage: Equipment price is only 1/3-1/2 of European brands.
- Customised service: quick response to customer needs, such as modular design for small plastic pelletizer machine.
- Intelligent upgrade: integrated Internet of Things (IoT) platform, real-time monitoring of energy consumption and faults.
Take a manufacturer in Shandong as an example, its twin-screw model has a 25% market share in Southeast Asia and focuses on stability in high-temperature and high-humidity environments.
Future trends and sustainable develoment
Direction of Technology Upgrade
- Energy saving and consumpption reduction: permanent magnet motor and heat recovery system reduce energy consumption by more than 20%.
- Intelligent: AI algorithm optimises screw speed and temperature curve to reduce trial loss.
- Material Innovation: Adapt to chemical recycling plastics (e.g. depolymerised PET) to promote circular economy.
Policy-driven market demand
According to China's ‘14th Five-Year Plan of Action on Plastic Pollution Control’, the utilisation rate of recycled plastics needs to reach 30% by 2025, which will drive the installed capacity of coaxial rotary twin-screw plastics granulators in the recycling field to increase by 15% annually.
Conclusion
co-rotating twin screw plastic pelletizer is the core equipment for high-value recycling and modification of plastics. Enterprises need to choose the right model according to material characteristics, capacity requirements and budget, and pay attention to cost-effective solutions from China plastic pelletizer manufacturers. By integrating the front-end equipment such as film stretching machines, a high-efficiency and low-carbon industrial chain can be built.
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