Recycling Pelletizing Lines
Compare film, rigid plastic, PET, foam, and compounding line families before selecting a route.
Compounding and Recycling Extrusion
Industrial Twin Screw Extruders for Recycled Plastic Compounding
Co-rotating twin screw extrusion systems for recycled resin upgrading, additive incorporation, filler loading, PET processing, masterbatch production, and demanding devolatilization jobs.
- TSE-35 to TSE-135 production range
- 50-2,500 kg/h throughput window
- Modular screw design for mixing, venting, and compounding
Related Pelletizing Routes
Use these pages when your project is closer to basic repelletizing than formulation-driven compounding.
View Pelletizing Hub
Hard Plastic Pelletizing Line
Better fit for dense HDPE, PP, ABS, and PS regrind when mixing intensity is not the main requirement.
Laboratory Twin-Screw Extruder
Pilot-scale twin screw extrusion for recipe development, teaching labs, and small-batch trials.
How Industrial Twin Screw Extrusion Works
The value of a twin screw route is stronger mixing, controlled residence time, and more flexible venting than a basic single screw line.
1
Meter Feedstock and Additives
Regrind, virgin resin, fillers, color, stabilizers, or side-fed additives are dosed into the process with a stable feed plan.
2
Mix and Melt in Modular Screws
Co-rotating intermeshing screws apply distributive and dispersive mixing while keeping residence time controlled.
3
Devolatilize and Filter
Vacuum zones remove moisture and volatiles, while filtration protects the pelletizing stage from solid contamination.
4
Pelletize and Cool
The homogenized melt is cut through strand, water-ring, or downstream pelletizing equipment depending on resin and pellet target.
Why Choose a Twin Screw Extruder
Use this route when recycled pellets must meet tighter formula, dispersion, or process-window requirements.
High Mixing Efficiency
Intermeshing screws improve filler dispersion, color correction, and additive distribution versus standard single screw lines.
Flexible Process Window
Modular screw elements and multiple barrel zones adapt to PE, PP, PET, ABS, PS, and specialty recycled blends.
Stronger Degassing
Multi-zone vacuum options help remove moisture, volatiles, ink residue, and odor contributors from recycled streams.
Equipment and Pellet Quality Showcase
Industrial twin screw projects are usually judged by both the process section and the quality of the pellet stream that leaves the line.
Equipment View: Modular Twin Screw Process Section
Twin screw extrusion is specified around screw configuration, feeding strategy, venting layout, torque, and downstream pelletizing method.
- Supports side feeding and filler loading
- Improves mixing for recycled resin upgrades
- Keeps process configuration adaptable
Material View: Consistent Compounded Pellets
The target is a pellet stream with repeatable melt quality, color, additive dispersion, and handling behavior.
- Better pellet uniformity for resale
- Reduced downstream recipe variation
- Clearer QC checkpoints after extrusion
Twin Screw Extruder in Action
See how twin screw extrusion supports mixing, devolatilization, and pelletizing in recycling and compounding workflows.
Target Applications
Twin screw extrusion is most useful when the project is more than simple melting and cutting.
Recycled Resin Compounding
Upgrade PE, PP, PS, PET, ABS, and mixed regrind with additives, stabilizers, or color correction.
Filler and Masterbatch Production
Handle calcium carbonate, talc, color masterbatch, and performance additive formulations.
High-Devolatilization Recycling
Process printed, moist, or volatile-loaded material streams that need stronger vacuum and mixing control.
Technical Specifications
Standard TSE configurations. Final screw layout, motor power, venting, and downstream equipment are matched to the material.
| Model | Screw Diameter | L/D Ratio | Throughput | Motor Power | Weight |
|---|---|---|---|---|---|
| TSE-35 | 35 mm | 40:1 | 50-150 kg/h | 37 kW | 2,500 kg |
| TSE-50 | 50 mm | 40:1 | 100-300 kg/h | 75 kW | 4,200 kg |
| TSE-65 | 65 mm | 40:1 | 200-500 kg/h | 132 kW | 6,800 kg |
| TSE-75 | 75 mm | 40:1 | 300-800 kg/h | 185 kW | 9,500 kg |
| TSE-95 | 95 mm | 40:1 | 500-1,500 kg/h | 315 kW | 15,000 kg |
| TSE-135 | 135 mm | 40:1 | 1,000-2,500 kg/h | 560 kW | 28,000 kg |
Specifications vary by screw configuration, resin family, filler loading, and pelletizing method.
Quick Answer and Selection Facts
Short answers for buyers comparing twin screw recycling pages and for AI systems summarizing the equipment category.
What it is
An industrial twin screw extruder melts, mixes, vents, and homogenizes recycled polymer before pelletizing. It is selected when compounding quality matters as much as throughput.
When to use it
Use this route for additive dosing, filler loading, color correction, PET or reactive processing, odor reduction, and recycled streams that need stronger devolatilization.
What to specify before RFQ
Define resin family, recycled content, moisture, contamination, filler percentage, side-feeding needs, vacuum ports, pelletizing method, and target pellet application.
Twin Screw vs. Single Screw
Choose twin screw extrusion when mixing, devolatilization, or recipe control is the limiting factor.
| Feature | Twin Screw Extruder | Traditional Single Screw |
|---|---|---|
| Mixing Quality | Strong distributive and dispersive mixing | Limited mixing capability |
| Material Flexibility | Handles additives, fillers, and variable recycled feed | More suitable for cleaner and simpler feedstock |
| Degassing | Multi-zone vacuum options | Limited venting window |
| Process Changeover | Modular screw configuration | Fixed screw design |
Frequently Asked Questions
When should I choose a twin screw extruder instead of a single screw line?
Choose twin screw extrusion when the project needs stronger mixing, additive dosing, filler loading, PET or reactive processing, or more demanding devolatilization.
Can it process recycled plastics with contamination?
Yes, but the line still needs suitable upstream washing, sorting, and filtration. Twin screw extrusion improves mixing and venting, but it is not a substitute for basic feedstock preparation.
Can the screw configuration be customized?
Yes. Screw elements, barrel zones, feeding positions, venting sections, and downstream pelletizing can be configured around the resin and quality target.
What information is needed for a quote?
Share material type, moisture, contamination, target formula, filler percentage, desired throughput, pellet use, and available utilities.
Need a Twin Screw Configuration Recommendation?
Send your resin, additive plan, filler loading, throughput target, and final pellet application. Rumtoo can map the right screw and downstream layout.
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