PET washing line bottle cap removal process, PET flake purification and PP PE cap separation system for plastic recycling

PET bottles hot washing line is the core solution for industrial PET bottle recycling, and this 3000KG/H case in Nigeria perfectly demonstrates its ability to meet high-volume, food-grade standards.

Project Overview

  • Location: Nigeria
  • Commission Date: August 2025
  • Capacity: 3000KG/H—12mm Flake Sizes
  • Material: PET food-grade standards Flakes
  • Application: Fruit boxes, cake boxes/blister trays
  • Customer Needs: The previously purchased 1-ton hot washing line was insufficient in terms of output, and the produced flakes did not meet requirements.
  • Solution: Custom-made 3-ton capacity PET hot washing line.
  • Results: Stable daily output was achieved, the produced flakes met food-grade standards and were sold in Europe.

 


PET Bottles Hot Washing Line

The PET Recycling Process: From Waste to Resource

Our PET Bottles Hot Washing Line is specially designed for waste PET plastic recycling and complete PET flakes production. Polyethylene Terephthalate (PET) can gain a brand-new service life through professional industrial recycling.
Instead of being buried in landfills or causing environmental pollution, waste PET materials such as used beverage bottles and food plastic containers are collected, sorted, and reprocessed by our PET hot washing recycling line into high-purity and high-quality PET raw materials.
This professional PET recycling process effectively cuts down the consumption of virgin fossil-based plastic materials. Meanwhile, it perfectly supports the circular economy development by saving production energy, reducing waste emission, and improving resource utilization.
pet hot washing linePET hot washing line

The industrial recycling journey typically involves the following key steps:

  1. Collection and Sorting

The process begins with collecting post-consumer PET bottles and packaging from various sources. At recycling facilities, the materials undergo rigorous sorting. Advanced systems (often using optical sensors) separate PET from other plastics like PVC or PP, and sort them by color (e.g., clear vs. colored). Removing contaminants at this early stage is crucial for maintaining the quality of the final product.

  1. Washing and Cleaning

Once sorted, the bottles are thoroughly washed to remove any impurities. Industrial machines strip away labels, caps, adhesives, dirt, and residual liquids. A hot wash and friction cleaning process is often used to eliminate grease, sugars, and glue residues. This deep cleaning ensures that the resulting material meets strict hygiene and safety standards.

  1. Crushing and Flaking

The clean bottles are then fed into crushers that break them down into small pieces called “flakes.” These flakes serve as the fundamental base material for the next stages. Consistent flake size helps ensure uniform washing and drying results.

  1. Melting and Reprocessing (Pelletizing)

The cleaned flakes are dried and melted down. Manufacturers reshape the molten plastic into small pellets or sheets. During this phase, strict quality controls—including filtration and sometimes solid-state polycondensation (SSP)—are applied to ensure the material achieves food-grade safety standards.

  1. Manufacturing New Products

Finally, these high-quality PET pellets are ready to be manufactured into new products. They can be turned into new beverage bottles, food containers, eco-friendly cups, or even spun into fibers for clothing (such as sportswear and T-shirts).

By transforming old plastics into valuable resources, the recycling process significantly lowers carbon footprints and allows brands to offer sustainable packaging without compromising on clarity, strength, or safety.

PET recycling processPET hot washing recycling line

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