High energy cost from hot washing process
Adopt ambient cold water & mechanical friction washing, remove heating tank system to cut power consumption.
Plastic Bottle Cold Wash Machine
A PET bottle cold washing line recycles waste PET bottles into clean PET flakes. Different from hot washing lines, it uses ambient water and mechanical friction to remove dirt and surface contaminants, with no high-temperature washing required.
Product Overview
A PET cold washing line is a complete recycling system that cleans and separates waste PET bottles through a series of mechanical and washing processes. The main objective is to remove surface contaminants, separate different materials, and produce clean PET flakes for further processing.
A typical PET cold washing line includes pre-treatment and sorting equipment, a plastic crusher, washing equipment, a float-sink separation tank, and dryer equipment. Additional equipment can be incorporated depending on the raw material condition and final product requirements.
Your Production Challenges
Adopt ambient cold water & mechanical friction washing, remove heating tank system to cut power consumption.
Equip label remover + multi-stage friction washer to strip labels and wash away sand & surface contaminants.
Modular structure design, customize line capacity from 500kg/h to 3000kg/h according to raw material condition.
Simplified mechanical layout, low-wear spare parts design for easy routine inspection & replacement.
Technical Parameters
The quotation specifies the equipment schedule, utility requirements and agreed performance conditions.
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| Capacity | Water Required | Man Power | Area Required | Line Layout |
|---|---|---|---|---|
| 500kg/h | 1.5T/h | 2-3 people | 28*3*2.3m | L/U/Straight line |
| 1000kg/h | 1.8T/h | 4-6 people | 50*3*2.5m | L/U/Straight line |
| 1500kg/h | 5T/h | 6-8 people | 55*3*2.5m | L/U/Straight line |
| 2000kg/h | 8T/h | 6-8 people | 65*3*2.5m | L/U/Straight line |
Core Advantages
Remove heating stage, greatly cut heating power consumption versus hot washing lines.
Less complex machine structure, control upfront investment and daily running cost.
Flexibly match crushers, friction washers, float-sink tanks and dryers for your project.
Process Flow
Each stage has a specific job. The final sequence is selected for your feedstock and plant layout.

Waste PET bottles collected from recycling channels, with labels, dirt and residual liquid.

Manually or mechanically separate foreign objects, PVC, colored bottles and severely contaminated bottles in advance.

Mechanically peel off adhesive and plastic labels from bottle surface before crushing.

Cut whole bottles into uniform PET flakes for subsequent washing and impurity separation.

Use water density difference to separate heavy impurities like sand, metal from PET plastic.

High-speed mechanical friction removes sticky dirt, glue residue and surface contaminants on flakes.

Rinses PET flakes with clean water to remove loosened dirt and residual contaminants after friction washing.

Centrifugal dehydration to reduce surface moisture of PET flakes.

Separate light impurities such as paper, foam and thin film fragments from PET flakes by airflow.

Store finished clean PET flakes, ready for packaging or granulation process.
Customized according to your capacity, raw material, workshop space and flake purity demand. Flexible layout: L / U / straight line. We supply layout plan, installation service and long-term technical support.
Materials & Applications

Post-consumer PET drinking bottles, mineral water bottles, carbonated beverage bottles with labels and sediment.

Output clean PET flakes for fiber spinning, sheet extrusion and pelletizing.

Cold wash applicable for PET sauce jars, oil bottles without heavy oil contamination.
Who This Line Is For
Perfect choice for recyclers who want to cut heating cost and control investment.
Modular L / U /straight layout adapts to narrow or irregular plant sites.
Ideal for materials without heavy grease, which do not require hot caustic washing.
Match with water recycling system to reduce overall water consumption.
Easy operation, fewer auxiliary equipment, lower technical threshold for new recycling
No heating system, less power consumption, helps reduce carbon emission of recycling plant.
Packing, Delivery & Support
Price Influencing Factors
A complete line is priced against a defined equipment and service scope. Send the details below for an itemized quotation.
Different hourly output matches different machine specifications and motor setups, directly changing the quotation.
Selection and quantity of crushers, friction washers, float-sink tanks, dryers and other units decide total cost.
Special requirements for raw material treatment, workshop layout and final flake purity will bring extra custom cost
Frequently Asked Questions
A cold washing line can remove some loose labels, surface dirt, and contaminants, depending on the equipment configuration and raw material condition. However, stubborn adhesive residues and heavy oil contamination may require additional treatment or a hot washing process.
A cold washing line mainly uses ambient-temperature water and mechanical cleaning, while a hot washing line includes a heated washing stage to improve the removal of certain stubborn contaminants. The best option depends on the raw material condition and finished product requirements.
The equipment comes with a 12-month warranty, excluding wearing parts. Operation and maintenance training is also provided for your workers to support proper use and routine servicing.
Yes. The equipment configuration can be adjusted according to your raw materials, target processing capacity, contamination levels, factory layout, and finished product requirements. Contact our sales team to discuss your project and obtain a tailored proposal.
To prepare a suitable quotation, please provide the type and condition of your raw materials, required processing capacity, desired quality and application of the finished PET flakes, and any specific equipment requirements. Our team can then recommend a suitable configuration and provide a quotation tailored to your project.
Get a Free Quote
Share your material, target capacity, output requirement and available space. Our team can review the equipment scope with you.