Welcome to ASG’s PP and HDPE pelletizing line, a system engineered for performance, efficiency, and sustainability. Featuring our Laser Filter Automatic Screen Changing and Slag Discharge System, this line delivers uniform, high-quality pellets even from highly contaminated input materials.
High-Torque Extrusion for Stable Output
At the core of the system are high-torque single screw extruders with specially designed barrels and screws. These ensure:
- Excellent plasticizing
- Consistent throughput
- Smooth, stable operation
Intelligent Feeding System
The process begins with a stainless steel screw conveyor, which moves material smoothly and efficiently. A precision feeder equipped with VFD speed control regulates the feeding rate, guaranteeing consistent flow and preventing overload.
Smart Control & Automation
For safe and intelligent operation, the line includes an independent electric control cabinet built with Siemens PLC and Schneider components. This setup provides:
- Stable pressure
- High slag discharge efficiency
- Minimal material loss, even with dirty input streams
The Laser Filter Advantage
The Laser Filter System is the highlight of this line. Specially engineered to remove tough contaminants such as wood, paper, and stones, it offers:
- Automatic screen changing for uninterrupted production
- Screw-driven slag discharge for continuous impurity removal
- Real-time monitoring and precise control for easy operation
No more manual mesh replacement or downtime—just smooth, continuous processing.
Flexible Filtration Options
For standard recycling needs, the line can also be configured with a double-station hydraulic screen changer, enabling mesh replacement in less than two seconds.
Consistent, High-Quality Pellets
From feeding, extrusion, and filtration to cutting, drying, and storage, every stage of the process is optimized for reliability and efficiency. The result:
- Clean, uniform PP and HDPE pellets
- Excellent consistency
- Ready for reuse in injection molding, extrusion, and other demanding applications
Confidence in Recycling Performance
ASG’s pelletizing line with the Laser Filter Automatic Slag Discharge System gives recyclers the flexibility to handle the dirtiest materials with confidence—delivering the perfect balance of performance, efficiency, and sustainability.
INQUIRIES
To learn more about this product, please send us a message using the form below:
Frequently Asked Questions
Which materials is this pelletizing line designed for?
The line is engineered for PP and HDPE, and it handles even highly contaminated input materials with confidence. The Laser Filter system removes tough contaminants such as wood, paper, and stones before pelletizing, so dirty post-consumer or industrial waste streams can be processed into clean, uniform pellets without pre-cleaning to food-grade standards.
How does the Laser Filter system work?
The Laser Filter Automatic Screen Changing and Slag Discharge System continuously filters the melt and ejects impurities through a screw-driven slag discharge. Screen changing is fully automatic, so production never stops for manual mesh replacement. Real-time monitoring and precise control keep filtration stable, delivering minimal material loss even with dirty input streams.
What filtration options are available?
For the most demanding materials, the line uses the Laser Filter system with automatic screen changing and continuous slag discharge. For standard recycling needs, it can instead be configured with a double-station hydraulic screen changer, which enables mesh replacement in less than two seconds. Your ASG engineer will recommend the option that matches your contamination level and throughput target.
How is feeding controlled on this line?
The process begins with a stainless steel screw conveyor that moves material smoothly into the extruder. A precision feeder equipped with VFD speed control regulates the feeding rate, guaranteeing consistent flow and preventing overload of the extruder. Stable feeding is essential for consistent plasticizing and uniform pellet quality across the whole production run.
What automation and controls does the line include?
The line is run from an independent electric control cabinet built with Siemens PLC and Schneider components, providing safe, intelligent operation. The control system maintains stable pressure, drives high slag discharge efficiency, and enables real-time monitoring of the filtration and extrusion stages — all with minimal operator intervention for continuous, reliable production.
What pellet quality and end uses can I expect?
Every stage — feeding, extrusion, filtration, cutting, drying, and storage — is optimized to produce clean, uniform PP and HDPE pellets with excellent consistency. The resulting pellets are ready for reuse in demanding applications such as injection molding and extrusion, giving recyclers a high-value output even when starting from heavily contaminated waste plastic.