Plastic recycling normally requires a connected set of machines, not one universal machine. The correct line may include sorting, shredding or crushing, washing, separation, drying, extrusion, filtration and pelletizing.
Machine selection starts with the saleable output. Clean PET flakes, washed PE film, rigid PP regrind and filtered pellets require different process stages, utilities and quality controls.
I’m Jacky, CEO of AMIGE. I ask buyers to define feedstock, contamination, capacity and product specification before discussing a line. Otherwise, equipment gets added without solving the commercial problem.
Main Plastic Recycling Machines and Their Jobs
| Machine | Main job | When it is needed |
|---|---|---|
| Sorting system | Separate polymer, color and prohibited material | Whenever mixed feed would reduce product value |
| Shredder | Coarse reduction of bulky or dense feed | Bales, lumps, large containers or difficult parts |
| Crusher or granulator | Produce screen-controlled flakes | Washing, drying or extrusion needs consistent size |
| Washing and separation line | Remove dirt, labels, glue and incompatible fractions | Post-consumer or contaminated material |
| Dewatering and dryer | Reduce surface and retained moisture | Dry flakes are required for storage or extrusion |
| Extruder and pelletizer | Melt, filter and form pellets | The buyer needs filtered, homogenized pellets |
Machines for PET Bottle Recycling
A PET bottle line may include bale opening, sorting, label removal, crushing, pre-washing, hot or friction washing, float-sink separation, rinsing, dewatering and drying. The final product may be clean flakes rather than pellets.
Caps, rings, labels, adhesives, residual liquid and PVC contamination affect the line. Capacity should be based on incoming bottles and confirmed against the required flake quality.
Machines for PE and PP Film Recycling
Film is light, flexible and often dirty. It may need controlled feeding, dedicated shredding or crushing, pre-washing, friction washing, float separation, squeezing or thermal drying and optional pelletizing.
Agricultural film, stretch film and printed packaging do not have identical contamination or melt behavior. Samples and a buyer specification are essential before line design.
Machines for Rigid HDPE and PP Recycling
Bottles, crates, buckets, pipes and injection-molding scrap may need sorting, metal removal, size reduction, washing, separation and drying. Large containers or thick lumps can require pre-shredding before granulation.
Rigid regrind can sometimes be sold after cleaning and drying. Pelletizing should be added only when filtration, blending, dosing or a pellet specification creates enough value.
How to Decide Whether Pelletizing Is Required
- What form will the buyer accept: flakes, regrind or pellets?
- Does the material need melt filtration or homogenization?
- What moisture, contamination and melt-flow limits apply?
- Will additives, color or blending be introduced?
- Does the additional sale value cover yield loss, power and wear?
Pelletizing is not automatically the final stage of every recycling line. Design backward from the buyer’s written specification.
Capacity, Yield and Cost per Saleable Ton
Input kg/h is not the same as saleable output. Labels, dirt, moisture, fines and rejected polymers reduce yield. Calculate labor, electricity, water, treatment, heating, wear parts, packaging and residue disposal per saleable ton.
Buffer storage and coordinated controls are also important. One oversized machine cannot compensate for an undersized washer, dryer or discharge system.
How to Compare Plastic Recycling Equipment
- Demand representative material tests and defined output criteria.
- Compare each line at the same feed and product specification.
- Review wear parts, service access and maintenance labor.
- Confirm water, power, drainage, heating and compressed-air demand.
- Check layout, guarding, dust, noise and local compliance.
- Define responsibility for conveyors and interfaces between machines.
Explore AMIGE plastic shredders, plastic crushers and plastic washing lines as core process modules.
Information Needed for a Recycling-Line Proposal
Send representative photos or samples, polymer mix, contamination, moisture, incoming form, monthly supply, required capacity, target output, buyer specification, utilities, labor, operating hours, layout and local compliance requirements.
Submit these details through the AMIGE inquiry form. We can map the required machines and identify stages that do not add value to the project.
Frequently Asked Questions
Which machine is used for plastic recycling?
Most projects use several machines selected for sorting, size reduction, washing, drying and optional pelletizing rather than one universal unit.
What is the first machine in a plastic recycling line?
It depends on the feed. Sorting or bale opening may come first, followed by a shredder or crusher when size reduction is required.
Do all recycling lines need a shredder?
No. Loose feed that fits a properly configured crusher may not need pre-shredding. Bulky, baled or thick material often does.
Do all recycled plastics need pelletizing?
No. Clean flakes or regrind may already meet the buyer’s specification. Pelletizing is added when melt filtration or pellet form creates value.
What information is required to quote a recycling line?
Provide the material, contamination, supply volume, capacity, target product, buyer specification, utilities, operating hours and layout.
