Complete PET Bottle Washing Line: A Step-by-Step Guide

This text describes the machinery involved in recycling plastic bottles. The setup generally consists of conveyor belts, shredders, sorting machines, wash tanks, and drying units. The goal of this equipment is to turn waste plastic bottles into recyclable material. Through a sequence of actions—separating, cleaning, and processing—the system prepares the plastic for the manufacture of new products. This recycling method not only significantly lessens environmental impact but also conserves resources, offering a sustainable solution to plastic waste.

The need for efficient and reliable plastic recycling solutions has never been greater. Our complete PET bottle washing line offers a turnkey solution for businesses looking to enhance their plastic bottle recycling operations. This fully automated system transforms baled PET bottles into high-quality, contaminant-free PET flakes, ready for the manufacturing of other PET products or the production of polyester staple fibre.

The Working Principle

Our PET bottle washing line comprises a series of interconnected plastic recycling machines, each playing a crucial role in the recycling process.

The debaler machine is the first step, breaking down compacted bales of PET bottles into a free-flowing stream. The bottles then move onto the trommel, a slow-rotating tunnel lined with small holes that separate small pieces of contamination from the PET bottles.

The wet plastic granulator or crusher cuts the bottles into small flakes, while the air classifier removes lighter materials such as paper and plastic labels. The sink/float separation tank then separates materials based on their buoyancy, with PET plastic sinking and plastic film and PP/PE plastic floating.

The hot washer system dissolves glues and leftover beverages/foods, while the friction washer removes any remaining dirt and debris. The dewatering machine and thermal dryer then work together to remove any remaining moisture from the flakes.

Finally, the clean, dry PET flakes are stored in the product silo. If required, we also offer pelletizers/extruders for the production of plastic pellets.

High-Quality PET Flakes

Our PET washing line produces high-quality PET flakes that meet stringent industry standards. The flakes have a moisture content of less than 1-2%, a bulk density of less than 0.3G/CM3, and minimal impurity, PVC, metal, and PE/PP content. The particle size is also controlled to be less than 14-16mm.

Complete PET Bottle Washing Line

Main Technical Parameter

Input Capacity500kg/h1000kg/h1500kg/h2000kg/h3000kg/h
Required Space42m×10m×6m50m×15m×6m55m×16m×6m60m×18m×6m100m×20m×6m
Operators3-5 people6-8 people7-9 people8-10 people10-12 people
Installation Power150kW250kW370kW450kW750kW
Water Circulation(T/H)23345

Post-consumer PET bottles are undoubtedly one of the most important components of the recycling market. Recycled PET can be used in a wide variety of applications and can bring significant financial returns to recycling companies.


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De-balingSeparating the PET bottles from baled packages
Metal RemovalSeparating metal materials using magnets or electromagnets
Label RemovalRemoving labels from the PET bottles chemically or mechanically
Metal RemovalSeparating residual metal materials using magnets or electromagnets
Bottle Pre-washingInitial washing of the PET bottles before the washing process
Optical Bottle SortingSorting PET bottles by type and color using optical sensors
Manual SortingFurther sorting of PET bottles by hand (by color, type, material, etc.)
CrushingShredding the PET bottles into small pieces
Dust RemovalRemoving dust from the shredded PET bottle pieces
Flotation Hot washingCleaning the PET flakes using hot water in a flotation tank
Friction WashingRemoving remaining contaminants from the PET flakes using brushes or other methods
RinsingRinsing the cleaned PET flakes to remove any remaining cleaning agents
Flushing WashingHigh-pressure water rinsing of the PET flakes
DryingDrying the PET flakes using air or a spinning process
Dust RemovalRemoving any remaining dust from the dried PET flakes
Optical Flakes SortingSorting PET flakes by type and color using optical sensors
BlendingBlending different colors and types of PET flakes
Online InspectionInspecting the quality of the PET flakes on the production line
PackingPackaging the PET flakes in bags or other containers

PS:Equipment configuration and the process will be optimized accordingl to raw materials.

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All recycling machines come with a 1 year limited warranty.


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