Plastic & PET Bottle Recycling
What is a PET Bottle Washing Line?
A PET Bottle Recycling Line is an automated industrial system designed to transform post-consumer plastic bottles into clean, high-value PET flakes. These flakes can be reused for polyester fiber production, strapping, or—with advanced decontamination—food-grade packaging (Bottle-to-Bottle).
Guoxin Machinery’s recycling solutions focus on the three pillars of modern plastic processing: Maximum Label Removal, Zero-Contamination Crushing, and Deep Hot Washing. Our modular designs scale from 300 kg/h to 3,000 kg/h, catering to both regional recycling centers and large-scale industrial plants.
The Process: Engineering for “Food-Grade” Purity
Our PET washing line utilizes a multi-stage purification process to ensure the final flakes are free from PVC, adhesives, and organic residues.
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De-baling & Pre-sorting: Automated bale breakers loosen the bottles, followed by a Trommel Screen to remove stones, sand, and small metal fragments.
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Patented Label Removal: Our high-speed Label Remover uses adjustable blades to peel off 98%+ of PVC/Paper labels without damaging the PET bottles.
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Manual Sorting Platform: Optional station for removing colored bottles or non-PET plastics to ensure the highest “Grade A” transparency.
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Wet Crushing: Heavy-duty crushers reduce bottles into 12-18mm flakes while spraying water to perform initial cleaning and reduce blade wear.
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Gravity Separation (Sink-Float Tank): Utilizing the density difference between PET ($>1g/cm^3$) and PP/PE caps ($<1g/cm^3$), our tanks automatically skim off the floating caps.
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Hot Washing & Friction Scrubbing: Using a caustic soda ($NaOH$) solution in our Hot Washer to dissolve persistent glues and oily residues.
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Drying & Zig-Zag Separation: A centrifugal dryer removes moisture, followed by a Zig-Zag Air Classifier that sucks away any remaining fine labels or dust.
Technical Specifications
| System Model | Throughput (kg/h) | Power (kW) | Water Consumption (T/h) | Key Target Material |
| PR-500 | 300 – 500 | 85 – 110 | 2 – 4 | HDPE / PET Bottles |
| PR-1500 | 1000 – 1500 | 160 – 210 | 5 – 8 | Post-consumer PET |
| PR-3000 | 2000 – 3000 | 280 – 350 | 10 – 15 | Large-scale Industrial |
Why Invest in a Guoxin Plastic Recycling Line?
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Closed-Loop Water System: We integrate advanced filtration and water recycling modules, reducing freshwater consumption by up to 60%.
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Low Fine Content: Our crushing and air separation technology ensures that the “fine dust” content in the final flakes is less than 1%, maximizing your resale value.
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Alloy Blade Durability: We use D2 or SKD-11 tool steel for our blades, extending service life between sharpenings in 24/7 operations.
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Safety & Compliance: All electric components are Siemens/Schneider, and the line includes emergency stop protocols and protective guarding.
FAQ for Plastic Recycling Investors
Q1: What is the purity level of the final PET flakes?
A: With our full hot-washing configuration, you can achieve a purity of 99.7% or higher, with moisture content below 1%.
Q2: How do you handle the PVC contamination from labels?
A: We use a two-stage approach: a dry label remover for the bulk of the material, followed by a sink-float tank. For high-end requirements, we can integrate an Optical Sorter to detect and eject PVC flakes.
Q3: Is the system suitable for HDPE or PP bottles?
A: Yes. The modular design allows us to adjust the sink-float parameters and crushing speeds to handle HDPE (Milk bottles) or PP containers with minimal reconfiguration.
Global Projects & ROI
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Southeast Asia: A 1,500 kg/h PET washing line focused on producing flakes for the local textile fiber industry.
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Middle East: A heavy-duty HDPE/PET mixed line handling rigid plastic waste from municipal sorting centers.
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