Plastic Pelletizing Machines for Recycling

Plastic Pelletizing Systems

Plastic Pelletizing Machines for Recycling

Choose a pelletizing line for prepared film, flakes, rigid regrind or suitable foam scrap. Match the feeding system, extruder, filtration and pellet cutting to your material, required pellet quality and production target.

Plastic Pelletizing Machine
Material Coverage

Choose by Feedstock and Application

Start with the polymer, material form and intended pellet use. Open the relevant line page for its process options and specifications.

PP/PE Film and Woven Bags

Select compaction or other assisted feeding for low-density film and fibrous scrap. Choose extrusion, degassing and pellet cutting as compatible parts of the same line.

Explore film pelletizing

PET Flakes

Start with sorted, clean flakes and a defined moisture target. The featured single-screw PET route requires properly dried feed to limit hydrolysis and intrinsic-viscosity loss.

Explore PET pelletizing

Rigid PP/HDPE Regrind

Match hopper feeding or a force feeder to flake size, bulk density and flow. Specify melt filtration for the actual contamination and required pellet application.

Explore rigid flake pelletizing

EPS Foam and Styrofoam

Reduce bulky EPS into a feed form the extruder can handle. Assess compaction, degassing and pellet cooling around material condition and throughput.

Explore EPS pelletizing

EVA Foam: Material Assessment

Confirm EVA formulation, crosslinking, fillers and contamination using representative samples. A recovery route must be evaluated before assuming the foam can be melt-processed.

Discuss an EVA route

Recycling and Compounding

Use twin-screw processing where the project calls for stronger mixing or devolatilization. Formulated compounds also require appropriate additive dosing and dispersion.

Explore twin-screw recycling
Pelletizer Lineup

Plastic Pelletizing Lines and Extruder Systems

Compare the routes below by their intended use. Cutter-compactor describes feed preparation, single- or twin-screw describes extrusion, and water-ring or strand describes pellet cutting. These choices can be combined in one system.

Selection Guide

Match Feeding, Extrusion and Pellet Cutting

These are starting points for configuration, not fixed equipment packages. Final selection depends on moisture, contamination, melt behaviour, required pellet properties and a defined throughput basis.

Feedstock / applicationFeed preparationExtrusion / melt treatmentPellet cuttingConfirm before selection
PP/PE film, raffia, woven bagsCutter-compactor or other assisted feedingSingle-screw route; venting and filtration as requiredWater-ring or another material-compatible methodFeeding stability, moisture, printing and filtration
Clean PET flakesMetered, properly dried flakesFeatured PET single-screw route with vacuum degassingUnderwater cutting on the featured PET lineFeed moisture, IV retention and melt quality
Rigid PP/HDPE flakesHopper or force feeding to suit flake flowMaterial-specific single-screw with melt filtrationSelect for melt flow and pellet specificationFlake size, bulk density and contamination
EPS foamSize reduction and suitable densifying or forced feedingDegassing extrusion for prepared EPSMaterial-compatible cutting and coolingStable feed, gas removal and pellet handling
EVA foam scrapSample-specific preparationConfirm a suitable recovery process after material trialsConfirm with the validated processCrosslinking, formulation, fillers and intended reuse
Prepared recyclate with demanding melt treatmentControlled feeding matched to the scrapTwin-screw recycling with suitable devolatilization and filtrationChoose for melt properties and pellet qualityMelt homogenization and volatile load
Formulated recycled compoundsMain dosing plus side feeding where neededTwin-screw compounding with controlled mixingStrand or another formulation-compatible methodAdditive dosage, filler dispersion and formulation

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Pelletizing Workflow

How a Plastic Pelletizing Line Works

Prepared thermoplastic material is fed, melted, treated and cut into pellets. The positions of filtration and degassing vary by line design; required feed preparation is confirmed before extrusion.

1

Prepare & Feed

Dry or otherwise condition the feedstock as required. Match the hopper, feeder or compactor to material form and bulk density.

2

Melt & Degas

The extruder melts and conveys the polymer. Venting or vacuum degassing reduces entrained gas and volatile components within the selected process limits.

3

Filter & Control Pressure

Melt filters retain solid particles according to the filter and material conditions. Pressure controls and, where fitted, a melt pump support steady cutting.

4

Cut, Cool & Handle

Cut at the die face or form and cool strands before cutting. Match cooling, dewatering and pellet drying to the selected method.

Configuration Checks

Specify the Conditions Behind Pellet Quality

Pellet consistency and usable output depend on the feedstock and operating conditions. Agree on the material specification, process scope and acceptance criteria before comparing proposals.

Pellet Quality Targets

Define pellet size, moisture, contamination, melt flow and intended application. For PET, include the required intrinsic viscosity and its measurement method.

Stable Material Feeding

Match the feeder or preconditioning unit to bulk density, material shape and flow. Densifying may help loose film or foam feed more consistently.

Screw & Temperature Configuration

Select screw design, temperature zones and residence time for the polymer and required melt treatment. Evaluate mixed or heat-sensitive streams before confirming compatibility.

Degassing & Melt Filtration

Degassing reduces gas and volatile components; melt filtration retains solid particles. Performance depends on process conditions. Do not assume these stages remove all ink, odour, gels or mixed polymers.

Feed Moisture & Pretreatment

Specify acceptable inlet moisture for the chosen extruder. The featured PET single-screw line needs properly dried flakes; a general drying percentage should not be applied to every polymer.

Throughput & Utility Basis

Compare capacity for the same feedstock and operating conditions. Distinguish incoming feed rate from accepted pellet output, and request configuration-specific power, cooling and layout requirements.

FAQ

Plastic Pelletizer Questions

A few practical questions to clarify before choosing a pelletizing line.

Project Support

Need Help Selecting a Plastic Pelletizing Line?

Send your material details, current process, and target pellet application. We will recommend a pelletizer configuration with the right feeding system, extruder type, degassing, filtration, and cutting method. New to the process? Read our guide to how plastic pelletizing works before you specify a line.

Material-specific line designWashing and drying integrationSingle-screw and twin-screw options

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