Food Grade PET Bottle Washing Line

Food Grade PET Bottle Washing Line


Bottle-to-Bottle grade PET bottle washing line makes the sustainable development of PET bottle resource recovery come true.

The global PET resources are being exhausted,but its demand is increasing year by year.The over exploitation of petroleum has caused irreparable damage to the natural and earth,human beings are suffering from nature.

Sustainable development of PET resources recovery has been a major issue in the PET recycling industry.Full utilization of PET resources and 100%recovery of PET resources to achieve sustainable development is the ultima goal of recycling.At present,the mainstream process to realize the recycling of PET bottles(containers)is physical recycling.Post-consumer PET bottles are collected from urban,it is recycled into rPET flakes by washing and crushing which rPET flakes can be used to manufacture food-grade chips.This kind of rPET flakes meets the

standard of FDA which is available to contact food and beverage directly.

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The food-grade PET bottle washing line is mainly used for PET bottle-to-bottle project,which recycles post-consumer PET bottles into rPET flakes.The regenerative PET flakes conform to the quality index requirements of downstream food packaging and are used for bottle blowing and packaging which can directly contact food after pelletizing and SSP processes in the late stage.

The food-grade PET bottle recycling process is more complicated than normal PET recycling,and the requirement for equipment and the quality of the final rPET flakes are more strict.At the same time,the owner is required for higher

factory management and advanced production know how.PolyReTec food-grade washing line has higher automation to avoid human errors.Ultra-cleaning of PET bottles and flakes,efficient blending,and an online inspection system to

ensure that the output of recycled PET flakes meets the standard of food-grade PET bottle-to-bottle process.Meanwhile,the PolyReTec food-grade PET bottle recycling system process is optimized according to the post-consumer PET bottle condition from different countries with the economic cost,less space occupation,and the most advanced process technology to meet the variety of downstream production applications.With more than 20 years of experience in PET bottle recycling production,PolyReTec provides online production and process guidance to customers.

PolyReTec PET bottle recycling system combined with a PLC controller,which can display parameter data of each unit and single equipment intuitively and effectively,and at the same time the system can

record all production data,and it has combined the remote communication technology to allow communication between customers and PolyReTec engineers by the internet and give them real-time guidance.PolyReTec can assist

customers with practical production management,data analysis,and equipment daily maintenance.In addition,the

entire PET bottle system is equipped with an optical bottle sorter and flake sorter,which greatly reduces the

investment of labor and improves production efficiency,thereby truly achieves a highly automated and clean recycling


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1.Solutions for diversification of input PET bottle bales.

2.Automatic de-baling technology,reduces labor,a strong bale breaking ability for high-density PET bottle bales.

3.Patent technology for PVC label removal.

4.Patented Pre-washing and hot washing process to ensure the cleanliness of rPET flakes.

5.Integrated technology and capability for automatic sorting machine and PET bottle recycling line.

6.The hot washing process reduces impurities content to achieve food-grade index.

7.Stable and reliable quality of rPET flakes,online inspection to ensure the stability of rPET flakes.

8.Completed online water recycling treatment system for pre-washing,hot-washing and rinsing.

9.Low operation breakdown,production management guidance service for customer.


Food Grade PET Bottle Recycling Process:


De-baling→Metal Removal-→Label Removal--→Metal Removal--→Bottle Pre-washing→Optical Bottle Sorting→Manual Sorting→Crushing→Dust Removal-→Flotation Hot washing→Friction Washing→Rinsing→Flushing

Washing→Drying→Dust Removal-→Optical Flakes Sorting→Blending→Online Inspection-→Packing


Ps.A standard sampling of food-grade PET bottle recycling process,equipment configuration and the process will be optimized according to raw materials

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Estimated plant parameters :

Input capacity (kg/h) Required area(㎡) Install power(kw) Required water(m³/h) Required steam(kg/h) Required compressor air(㎡/min) Man power
1000 1300 550 2 600 3 5
2000 1600 800 4 900 4.5 7
3000 2000 900 4.5 1300 6.5 8
6000 3000 1000 9 2300 12 11

*water consumption parameters are calculated based on using wastewater reuse system.

*PET bottle material composition and factory management level will affect actual consumption .



Production consumption table-average energy consumption per ton flakes:

Input capacity (kg/h) Electricity consumption(KWH) Steam (kg) Washing detergent(kg) Water consumption (ton)
1000 170 600 12 1.5
2000 165 550 12 1.5
3000 160 500 12 1.5
6000 150 450 12 1.5


PET Flakes Quality Standard Reference Table:

Moisture <1%
Label <15ppm
Pvc <30ppm
Inorganic compounds <10ppm
Glue <10ppm
PH 7.5±0.5
PP/PE <15ppm
Metal <10ppm
Total impurity <100ppm
*Flake size 12mm


*Flakes size can be specified by customers


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