PET Washing Line: The Best Manufacturers
Categories PET Bottle Recycling Washing Line Posted on Author Plastic Recycling Machine - Rumtoo
precision_manufacturing Complete Washing Plant

Complete PET Bottle Washing Line for High-Quality Flakes

Your one-stop industrial solution for recycling post-consumer PET bottles. Engineered as an essential component of comprehensive plastic washing lines, our advanced automated systems transform baled beverage bottles into clean, high-purity rPET flakes, prepared for bottle-to-bottle pelletizing or spinning into polyester staple fiber.

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Complete PET Bottle Washing Line Overview

Engineered for Maximum Throughput & Purity

  • High-Throughput Capacities

    Turnkey lines rated from 500 kg/h up to 5,000 kg/h, configured for single-shift or continuous 24/7 industrial recycling duty.

  • Water & Energy Efficient

    Counter-current cascading wash loops reduce freshwater consumption, pairing seamlessly with our DAF water treatment system.

  • Premium Grade Purity

    Consistently achieves PVC levels < 150 PPM (optionally < 50 PPM with optical sorters), impurities < 100 PPM, and residual moisture < 1%.

  • Flexible Layout Architecture

    Adaptable linear, L-shaped, or U-shaped plant configurations engineered to fit existing warehouse footprints and ceiling clearances.

See Our PET Washing Line in Operation

Watch post-consumer baled PET bottles undergo de-baling, optical sorting, wet grinding, hot chemical washing, and sink-float separation into pristine flake feedstock.

Standard Process Flow Diagram

A comprehensive schematic detailing bottle opening, label removal, wet granulating, multi-stage hot washing, and centrifugal drying.

Standard process flow diagram for PET bottle recycling washing line

Step-by-Step Washing Process

Our PET Bottle Washing Line operates through carefully synchronized mechanical and thermal stages to guarantee supreme purity without degrading intrinsic viscosity (IV).

  1. Step 1De-Baling & Bottle Opening

    High-torque debaler breaks compacted PET bales into a continuous, single-layer stream onto the sorting belt.

  2. Step 2Trommel Screening & De-Stoning

    Rotary trommel filters out loose soil, small stones, metal caps, glass shards, and heavy abrasive debris.

  3. Step 3Mechanical Label Scraping

    High-speed rotary label remover shears PVC/PP sleeve labels without shattering bottles, stripping over 98% of labels.

  4. Step 4Manual & Optical Sorting

    Multi-station sorting conveyor removes non-PET bottles, opaque HDPE bottles, metal cans, and off-color containers.

  5. Step 5Wet Granulation & Size Reduction

    Heavy-duty wet crusher shreds bottles into uniform 12-16mm flakes while continuous water flushing reduces blade friction.

  6. Step 6Continuous Steam Hot Washing

    Steam-injected hot washing reactor (85-90°C) with caustic soda dissolves hot-melt adhesives and label glue residues.

  7. Step 7High-Speed Friction Washing

    Rotary paddles accelerate flakes against a perforated screen to flush away dissolved adhesives, dirt, and chemical foam.

  8. Step 8Density Sink-Float Separation

    Hydrodynamic separation tanks float polyolefin caps (PP/PE) while pure PET flakes sink and are discharged by bottom screw.

  9. Step 9Centrifugal Dewatering & Thermal Drying

    High-G spin dryer mechanically extracts water, followed by thermal pipeline flash drying to reach final moisture < 1%.

  10. Step 10Zig-Zag Air Classification & Packing

    Air classifier extracts residual light label films and fines before bagging into one-ton bulk bags or storage silos.

Technical Specifications: Capacity Models

Standard capacity configurations for PET bottle washing systems. Customized higher throughputs and turnkey plant layouts are built to client specifications.

Model Throughput Capacity Installed Power (kW) Water Consumption (m³/h) PVC Contamination Moisture Content
PET-500 500 kg/h ~135 kW 2 - 3 m³/h < 150 PPM < 1%
PET-1000 1,000 kg/h ~240 kW 4 - 6 m³/h < 100 PPM < 1%
PET-2000 2,000 kg/h ~380 kW 6 - 8 m³/h < 50 PPM < 1%
PET-3000 3,000 kg/h ~520 kW 8 - 12 m³/h < 50 PPM < 1%

Standard Equipment Configuration

Turnkey equipment list for an industrial automated PET bottle washing line from de-baling to finished flake silo.

No. Component Name Primary Function
1Vertical de-baler with platformDecompacts dense baled PET bottles
2Belt conveyorTransfers unbaled bottles to screening trommel
3Roller trommelTumbles out stones, sand, loose glass, and metal debris
4Belt conveyorTransfers screened bottles to label remover
5High-speed label removerStrips glued and shrink sleeve labels mechanically
6Manual sorting platformPermits visual inspection and removal of foreign objects
7Metal detector & separatorProtects granulator blades against ferrous and non-ferrous metals
8Inclined belt conveyorFeeds sorted bottles into granulator chamber
9Wet granulator / crusherReduces bottles to 12-16mm flakes while spraying water
10Screw feederConveys wet PET flakes to primary floating washer
11Floating washer tankSeparates floating polyolefin caps and labels from sinking PET
12Centrifugal dehydratorExtracts initial wash liquid from flake stream
13Steam hot washer No. 1Caustic hot agitation melts glue and removes residues
14Inclined screw loaderTransfers hot flakes to second hot washing reactor
15Steam hot washer No. 2Deep chemical cleansing for food-grade purity
16Inclined screw loaderTransfers flakes to high-speed friction washer
17High-speed friction washerIntensive abrasive scrubbing eliminates caustic and chemical film
18Rinse float washer No. 1Second sink-float separation to remove trace cap micro-particles
19Rinse float washer No. 2Final clean water immersion and rinse cycle
20Centrifugal dewatering machineHigh-G centrifugal force reduces surface moisture to < 2%
21Thermal pipeline dryer & Zig-zag separatorDries flakes to < 1% moisture and blows away residual label film
22Storage silo & bagging stationPneumatically stores and packages finished rPET flakes
23Central PLC electric cabinetSiemens/Schneider automated control console with safety interlocks

Frequently Asked Questions

Clear answers about PET washing line capacity, moisture reduction, chemical treatment, and plant layout.

Ready to Turn PET Bottle Waste into High-Value rPET Flakes?

Contact our recycling machinery engineers today for a customized proposal, layout consultation, and a detailed equipment quote tailored to your capacity goals.

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Author: Plastic Recycling Machine - Rumtoo

Rumtoo Plastic Recycling Machinery is a premier manufacturer specializing in high-performance solutions for PET bottle and PP/PE film recycling. With over 20 years of expertise, we offer an integrated range of equipment, including advanced Washing Systems, Pelletizing Lines, Plastic Shredders, and Crushers. Our technology is specifically engineered to transform challenging waste—such as soiled LDPE films and PP non-woven bags—into high-purity plastic granules. Today, Rumtoo supports hundreds of recycling facilities worldwide, processing thousands of tonnes of plastic monthly and driving global circular economy goals.

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