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Suzhou Polytec Machine Co LTD
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pet bottle washing line-0

Plastic Washing Line

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PET Bottle washing line
PET Bottle washing line

PET Bottle washing line

Name: FDA Passed PET Bottle washing line
Raw materials: Beverage bottles, mineral water bottle, food bottles/jars (salad dressing, peanut butter, honey, etc.).
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  • Description

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01— Project introduction
PET is one of the world’s most widely-used packaging polymers, yet also a major fraction of ocean-bound plastic waste. Post-consumer PET bottles are 100 % recyclable and can be remolded into new packaging to build a closed-loop circular-economy system.POLYTEC-POLYRETEC supplies fully modular, turn-key PET bottle washing recycling lines with capacity ranging from 500-6000 kg/h. Our production lines deliver food-grade / bottle-to-bottle, sheet-grade and fiber-grade rPET flakes, complying with U.S. FDA 21 CFR 177.1630 food-contact requirements. With over 15-year industry experience, we tailor-configure each solution according to local raw-material conditions, impurity loads and target-quality standards.
02— Applicable materials
With more than 15 years of experience in PET recycling field, POLYTEC can provide a solution that meets your needs in value and efficiency.
POLYTEC can treat different conditions of PET bottle: Beverage bottles, mineral water bottle, food bottles/jars (salad dressing, peanut butter, honey, etc.).
image (29).jpg
03— Processing Flow :
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
3D-LAYOUT :
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Tested Sample

Standard

Result

Tested Components of Submitted Sample

U.S F.D.A. regulation 21 CFR part 177.1630 on Polyethylene Phthalate Polymers

PASS
PROJECT PARAMETERS:
Food Grade/Filament Grade Estimated plant parameters :
Input capacity (kg/h) Required area(㎡) Install power Required water Required steam Required compressor air(㎡/min) Man power
(kw) (m³/h） (kg/h)
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
Input capacity (kg/h) Electricity consumption Steam Washing detergent Water consumption
(KWH) (kg) (kg) (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
Food Grade/Filament Grade 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-250ppm
＊Flake size 12mm
Flakes size can be specified by customers
04— Advantages
✅ Adaptable for variable incoming PET bales Modular layout handles mixed-quality post-consumer bottle bales from different sources.
✅ High-efficiency automatic debaling Robust bale-breaking performance for high-density compressed bottle bales; frequency-conversion speed control reduces manual labour input.
✅ Precise PVC & label elimination Multi-stage mechanical label stripping + zig-zag air separation achieves target residual PVC label below 10 ppm (subject to feedstock).
✅ Reliable hot-washing purification Combined pre-washing and high-temperature hot-washing process effectively removes glue, oil and surface contaminants for stable food-grade flake quality.
✅ Closed-loop water-recycling system Built-in online circulating-water filtration greatly cuts freshwater intake and wastewater discharge, lowering operating cost.
✅ Multi-level sorting guarantee purity NIR optical sorting for whole bottles + finished flakes, combined with metal detection and manual inspection station, minimize non-PET foreign-material.
✅ Intelligent full-line control Auto chemical-dosing, steam-water injection, heating-time setting; real-time online monitoring, homogenizing blending and on-line weighing stabilize final-product consistency.
05 — Unit Introduction
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Debaler
Forklift feeds compressed bottle bales; frequency-regulated conveying for steady feeding.
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Trommel screen
The effect is to break up the lumps, sift out small garbage and part of the bottle cap.
Pre-washer
High-temperature chemical pre-cleaning removes surface dirt and residual adhesive labels before main washing.
image (30).jpg
Label Scrapping machine
Mechanical label peeling; air-flow separation extracts labels from bottles; separation efficiency up to 99 %.
image (31).jpg
Label blower
Due to the weight difference between bottles and labels, labels are separated out by the wind force of the label blowing fan that is equipped to the discharge end of the drum of the blowing machine, brought into the label screen frame and collected by the trolley or blown to the wrapping machine; while bottles are outputted from the other end and delivered to the next process by the double-screw conveyor.
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Optical bottle sorting section
Polyretec provides optical sorting machine and integraton solution by cooperating with well-known sorting device manufacturers across the world.On one hand,automatic opticalsorting macthine can reduce the mananement cost and man power requirement and on the other hand guaranteeing the stablity of sorting.
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Wet Crusher
Quick-change blade design without belt disassembly; twin-screw forced feeding for high throughput; spline knife-shaft structure reduces fine-powder generation.
1. Blade change without opening the cover and without moving the belt, enabling quick Blade changes.
2. Equipped with twin-screw forced feeding mechanism, ensuring high output and stable feeding.
3. Spline knife shaft mechanism results in low powder content and high output
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Floating Washer
Separates caps, stones, heavy-density impurities and foreign polymers via density difference.
image (32).jpg
Zig-zag label blower
Removing label dust ,labels,powder
Maximum separation efficiency ~99% -Target PVC label content <10PPM Depend on local raw material characteristics(thickness,label type)
image_WH_800x600px (21).jpg image_WH_800x600px (22).jpg image_WH_800x600px (23).jpg
Hot washer section
Hot-washing system removes glue, ink and organic residues under 85-95 °C with auto chemical dosing and mechanical agitation. Multi-stage rinsing eliminates chemical carry-over. Cooperated with full-line configuration, it achieves FDA-approved food-grade rPET flakes.
image (33).jpg
Centrifugal Dewater
Removing water and dry flakes into 1%
Efficient aspiration guarantees high quality,cleaning-free mesh saves manpower Driven by the shaft of the de-watering machine,the rPET flakes reacha high-speed centrifugal state within the chamber,effectively removing water through the mesh.
image (34).jpg
Hot air screw dryer
Used for further hot air drying of dewatered materials.
Low noise ,no choke ,less powder dust .
image.png
Flakes sorting ,
blending and packing section
For high-grade PET flakes applications,automatic optical flake sorting unit is an indispensable module.the unit including automatic flake sorting eddy curent.and pipe-type metal separator.These devices would maximize the removal of impurities before packing to ensure the stability of flakes quality.Flake with low impurity content and stable quality is a standard to measure PET recycling process.For the various quality factors during PET recyclingprocess,blending equipment and on-ine detection device especially designed can ensure the various quality indicators to meet criteria and to make sure nosinale parameter exceedino the reauirementso thatthe uality ofthe flakes wilbe quaranteed.0n-line weighing device can monitor real-time production flow.
image (35).jpg
Online circulating water filtration system
It is composed of water pump, circular vibration sieve and water tank. the water discharged from the machine is filtered out of labels and caps.The water is then sent to the next level of machine for use.
image_WH_800x600px (14).jpg image_WH_800x600px (15).jpg
DCS intelligent recycling line control system
Upper computer control system:
Features：
①The production process is controlled in real time, and data .
② Monitor the operating status of the equipment in real time
③The system is equipped with an intelligent medical examination module to remind the equipment of regular inspection items in real time to avoid false or missed inspections.
Brand of Components:
All type of bearings use Japanese NSK or German SKF, image(fc63060ad8).png
The motor is SIEMENS or WEG image(50d7f87dd4).png
Inverter image(50bbbba38c).png
Low voltage components image(a82d6929d1).png
PLC Module image(b59580fef2).png
DCS SYTEM image(50bbbba38c).png
06.Customer cases:
1.This is 1000kg/h efficient LDPE rigid plastic washing solution to Qatar from POLYRETEC
Machinery.We equiped with crusher and hot friction washer with patent for battery/blue drum /oil pot washing effect,the final rigid flakes'
water content is about 1%, the glue and label paper totally removed,which can meet the requirements of granulation line.
Located in shanghai
image - 2025-07-01T095436.962.jpg
image - 2025-07-01T095500.786.jpg
2.ThePTW600 pesticide bottle recycling line POLYRETEC .Pesticides are agricultural chemicals used to prevent pests and diseases and regulate plant growth. They are widely used in agriculture, forestry and animal husbandry production, environmental and household hygiene to prevent pests and epidemics, and industrial products to prevent mould and moths. There are many kinds of pesticides, which can be divided into insecticides, acaricides, rodenticides, nematicides, plant growth regulators, etc., according to their uses. According to the bottle material, it is divided into three categories: PET bottles, pure HDPE bottles and bottles with barrier layers. Many pesticide bottles are produced in farming every year
Located in shandong province ,china
image - 2025-07-01T095536.813.jpg
3.PP Food Containers Plastic Washing Recycling Line
More and more customers found that there are tremendous opportunities for business in plastic recycling field.POLYRETEC providing the best solution for plastic recycling.Such as HDPE bottle,drum,hollow container,PP chairs,WEEE ABS/PS waste's recycling.
Located in china
image - 2025-07-01T095952.994.jpg
4.the fiber grade 1000KG/H PET Flakes Washing Machine line.
One of the most famous plastic recycling company bought the PET washing line from POLYRETEC.PET recycling has a huge market.We are involved in developing our
technology in PET washing and Pelletizing. Located in Rawanda
image - 2025-07-01T100024.245.jpg
07 — Why POLYTEC more suitable for your investment?
FDA-Compliant PET Bottle-to-Bottle Washing
Line | 500-6000 kg/h | Produce Food-Grade
rPET Flakes for Circular Economy

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