Name: FDA Passed PET Bottle washing line
Raw materials: Beverage bottles, mineral water bottle, food bottles/jars (salad dressing, peanut butter, honey, etc.).
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/filament-grade PET bottle recycling process,equipment configuration and the process will be optimized according to raw materials
3D-LAYOUT :
| 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 |
Food Grade/Filament Grade 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 .
Food grade/Filament Grade 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 |
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
＊water consumption parameters are calculated based on using wastewater reuse system.
＊PET bottle material composition and factory management level will affect actual consumption .
✅ 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.
| Debaler | Forklift feeds compressed bottle bales; frequency-regulated conveying for steady feeding. |  |
| Trommel screen | The effect is to break up the lumps, sift out small garbage and part of the bottle cap.  |
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| Pre-washer | High-temperature chemical pre-cleaning removes surface dirt and residual adhesive labels before main washing. | |
| Label Scrapping machine | Mechanical label peeling; air-flow separation extracts labels from bottles; separation efficiency up to 99 %. |  |
| 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. |  |
| Optical bottle sorting section | Polyretec provides optical sorting machine and integraton solution by cooperating with well-known sorting devicemanufacturers 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. Non-PET color bottles and metals can be detected and sorted out by NIR.optical sensor optical camera and metal detector in this section.lt provides guarantee the PET materials purity.
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Wet Crusher
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Quick-change blade design without belt disassembly; twin-screw forced feeding for high throughput; spline knife-shaft structure reduces fine-powder generation.
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Fine grinding
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. |
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| 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) |
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| 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. |
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| 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.
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| Hot air screw dryer | Used for further hot air drying of dewatered materials.Low noise ,no choke ,less powder dust .
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| 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.Packing unit by taking advantage of the shaking system specially designed,can make the packing of the flakes reach the fix weight and maximize bulk density which areatly reduce the packing and transportation costs. |  |
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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. |  |
| 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. |
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Brand of Components:
| All type of bearings use Japanese NSK or German SKF, |  |
| The motor is SIEMENS or WEG |  |
| Inverter |  |
| Low voltage components | |
| PLC Module | |
| DCS SYTEM | |
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
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
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
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
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
