PET bottle recycling line

PET Bottle Recycling Solution (Bottle-to-Flake / Bottle-to-Bottle)

Complete turnkey solution for turning post-consumer PET bottles into high-purity rPET flakes. De-labeling, hot washing, and flake purification deliver food-grade output for packaging, fiber, and bottle-to-bottle applications.

  • Food-grade rPET flakes for bottle-to-bottle or fiber
  • High-label and bale-fed bottle handling
  • Caustic hot wash for contamination removal
  • Sink-float separation for purity
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Typical response: within 12 hours · Engineering-driven proposal

Best For

Post-consumer bottles
Baled bottles
High-label bottles
Food-grade rPET
Bottle-to-bottle upgrade

Typical Process Flow

Bale Breaking De-labeling Pre-Wash Hot Wash Sink-Float Rinsing Drying Flake Sorting (optional) Pelletizing/SSP (optional)

Bale breaking & de-labeling — Unbales and separates bottles from labels; hot-wash chemistry aids label removal.

Hot wash & sink-float — Caustic removes organics and glue; sink-float separates PET from PE/PP caps and labels.

Drying & optional pelletizing — Clean flakes dried to low moisture; optional extrusion + SSP for bottle-to-bottle IV and AA control.

Key Outputs & Quality Targets

Output form

Clean PET flakes (or rPET pellets with optional extrusion + SSP).

Contamination / moisture

Target <50 ppm contamination; moisture <500 ppm before extrusion.

Optional add-ons

Optical sorting, laser filter, SSP for IV/AA control, bottle-to-bottle readiness.

Standard Line Configuration

Bale BreakerFeeds baled bottles into the line
De-labelerRemoves labels and caps
Pre-WashInitial coarse cleaning
Hot WashCaustic cleaning for organics
Sink-FloatDensity separation (PET vs PE/PP)
RinsingFinal rinse and neutralization
DryingThermal drying to low moisture
Pelletizing (optional)Extrusion + SSP for bottle-to-bottle

Engineering Notes

What label types can the line handle?

OPS, PVC, PE sleeves, and paper labels. Hot wash chemistry can be tuned for your label mix.

What hot wash chemistry is used?

Caustic soda (NaOH) with optional surfactants. Temperature and dwell time are set for your contamination level.

What contamination levels can be achieved?

Typically <50 ppm foreign material. Optical sorting and laser filter can improve further for bottle-to-bottle.

What capacity range is available?

500–5000 kg/h for flakes; pelletizing capacity depends on extrusion configuration.

Is the line bottle-to-bottle ready?

With optional SSP (solid-state polycondensation) and IV/AA control, output can meet food-contact standards.

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