PET Bottle Washing Line for Clean, High-Value rPET Flakes
Turn baled post-consumer PET bottles into clean rPET flakes for bottle-to-bottle, sheet, strapping, or fiber. A complete washing line — debaling, label removal, crushing, sink-float separation, hot washing, and drying — configured for North American plants: 480V 3-phase power, UL 508A panel option, US spare-parts support, and on-site commissioning.
A Washing Line Configured for US Operating Reality
Buying recycling equipment from overseas raises the same five questions on every US project. We answer them in the proposal — not after the deposit.
480V 3-Phase Power
Motors, heaters, and controls specified for 480V/60Hz 3-phase — the US industrial standard — instead of a generic “customer voltage” footnote.
UL 508A Panel Option
Control panels available built to UL 508A industrial control panel standards for straightforward inspection and insurance sign-off.
US Spare-Parts Support
Wear-part kits (blades, screens, seals, belts) defined per line, with stateside stocking so a worn screen doesn’t idle your plant for six weeks.
On-Site Commissioning
English-speaking engineers for installation supervision, commissioning, and operator training — plus remote diagnostics after handover.
Import & Duty Guidance
We walk through landed-cost planning with you — freight, Section 301 duty considerations, and documentation — before you commit.
Dual-Unit Documentation
Layouts, manuals, and spec sheets in kg/h and lbs/hr, metric and imperial dimensions — written for the crew that will actually run the line.
How a PET Bottle Washing Line Works, Stage by Stage
Flake quality is decided long before the dryer. Each stage below removes a specific contaminant — skip one, and the cost shows up downstream as lower rPET value or rejected loads.
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Debaling & Presorting
Bale breaker opens compressed PET bales into a metered flow. Manual sorting stations and metal detection pull out non-PET containers, metals, and trash before they reach the grinder — the cheapest place to remove them.
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Dry Label Removal
A label remover strips shrink-sleeve and wrap labels while bottles are still whole, when labels are easiest to separate. Removing labels dry keeps them out of the wash water and reduces downstream load.
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Wet Grinding
Water-fed crusher reduces bottles to flakes (typically 10–14 mm). Wet grinding washes off surface dirt at the same time and keeps dust down; the water carries fines away to a filtration stage.
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Sink-Float Separation
PET (density ~1.38) sinks while PP/PE caps, rings, and label fragments float and are skimmed off. Staged sink-float tanks in series raise separation efficiency for mixed bale streams.
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Hot Washing
Heated wash (typically 85–90°C with caustic dosing) dissolves hot-melt glue and strips organics, oils, and label adhesive — the step that separates commodity flakes from high-value flakes.
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Friction Washing & Rinsing
High-speed friction washers scrub flake surfaces to remove fines and residues; clean-water rinsing tanks then stabilize output cleanliness and wash out residual chemistry.
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Dewatering
Centrifugal dewatering removes free water mechanically — far cheaper per ton than evaporating it — before any thermal stage.
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Thermal Drying & Air Classification
Hot-air drying brings moisture below 1% for stable storage and feeding; zig-zag air classifiers make a final pass on light label remnants.
Hot Wash vs. Cold Wash: Which Does Your Feedstock Need?
The single most common pre-quote question. The honest answer depends on your bale mix and where the flakes are going.
Cold Wash Line
Best for: relatively clean deposit-stream bottles, fiber and strapping outlets where glue specs are looser.
Trade-offs: lower capex and energy use, but hot-melt glue and organics largely stay on the flake — limiting you to lower-value outlets.
Hot Wash Line
Best for: curbside/MRF bales, mixed post-consumer streams, and any bottle-to-bottle or sheet project with a purity spec.
Trade-offs: higher capex (heated tanks, steam/boiler, caustic dosing) and energy use — repaid by access to higher-value flake markets.
Our rule of thumb: if your buyer has a written spec for glue, PVC, or moisture — or mentions food-contact — quote the hot-wash configuration. We’ll confirm against your actual bale photos before finalizing.
Designed Around Real PET Bottle Contamination
US curbside bales are not lab samples. The line is configured for what actually arrives on the truck.
What Shows Up in the Bale
Hot-melt glue and full-sleeve labels that drag down rPET purity and price. PP/PE caps and rings — plus the occasional PVC bottle or thermoform — that create quality risk if they survive to extrusion. Moisture and organics from curbside collection that destabilize throughput.
How the Line Handles It
Dry label removal before grinding keeps sleeves out of the wash loop. Staged sink-float separation targets caps, rings, and floatables across two passes. Hot washing with caustic dosing dissolves glue and organics. Optional optical sorting polices PVC and color at the purity level your buyer’s spec demands.
Capacity Tiers & Investment Guide
Four standard configurations cover most US projects. Final pricing depends on hot-wash vs. cold-wash, sorting level, and automation — send your bale spec and we’ll price your exact configuration.
| Compact — 500 kg/h (1,100 lbs/hr) | Entry point for regional collectors and first-time washers. Cold or hot wash; manual presort standard, optical sorting optional. |
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| Mid-size — 1,000 kg/h (2,200 lbs/hr) | The most quoted tier for independent US reclaimers. Hot wash recommended; staged sink-float; water recirculation included. |
| Commercial — 2,000 kg/h (4,400 lbs/hr) | Continuous-operation plants feeding sheet or fiber lines. Full automation options, dual hot-wash stages for glue-heavy streams. |
| Industrial — 3,000 kg/h (6,600 lbs/hr) | Bottle-to-bottle and large reclaimers. Optical sorting, advanced water treatment, and full plant integration engineering. |
Reference FOB pricing: PET bottle washing lines start at US$80,000–100,000 for the 500 kg/h compact configuration. Hot-wash systems, larger capacities, and optical sorting are quoted per project — send your bale spec for an itemized proposal.
What moves the price: hot-wash vs. cold-wash, number of sink-float stages, optical sorter count, water-treatment level, and automation (conveying, baling of rejects). Every proposal itemizes these so you can see exactly what you’re paying for — and what you can defer.
Utilities: What the Line Actually Consumes
Capex gets the attention; utilities decide the payback. These are the figures US buyers ask us to put in writing.
Water
Closed-loop recirculation with filtration is standard on hot-wash configurations — fresh-water make-up drops to a fraction of once-through designs. We size the treatment stage to your local discharge permit.
Power
Grinding and drying dominate the load. All motors and heaters are specified for 480V/60Hz 3-phase; we provide a connected-load schedule per configuration for your electrician.
Heat & Chemistry
Hot-wash tanks run 85–90°C via steam or electric heating with caustic dosing. Consumption scales with glue load — which is why we ask for bale photos before quoting.
Where Clean PET Flakes Go — and What Each Market Demands
Flake value is set by the buyer’s spec, not by the machine. Configure the line to the outlet you’re actually selling into.
Bottle-to-Bottle
Highest bar: tight PVC limits, low moisture, documented process control. Food-contact projects need an FDA compliance pathway review — we configure sorting and washing depth to support it, project by project.
rPET Sheet & Thermoforming
Consistent melt behavior matters more than absolute purity records. Stable washing and drying deliver the batch-to-batch consistency sheet extruders pay for.
Strapping & Fiber
High-volume outlets where throughput stability and cost per ton rule. Cold-wash or light hot-wash configurations keep opex in line with fiber economics.
ASG Line vs. a Conventional PET Washing Setup
What “conventional” usually means in practice — and where we deliberately differ.
| Label & glue removal | ASG: dry label removal before grinding + hot wash with caustic dosing, sized to your glue load. Conventional: labels ground with bottles; glue removal left to a single wash pass. |
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| Separation | ASG: staged sink-float in series for caps and floatables. Conventional: single tank — fine for clean streams, lossy on mixed bales. |
| US electrical | ASG: 480V/60Hz 3-phase design with UL 508A panel option. Conventional: generic voltage spec; panel compliance left to the buyer. |
| Water | ASG: recirculation and filtration engineered into hot-wash lines. Conventional: once-through water use; discharge and cost become the operator’s problem. |
| After-sales | ASG: on-site commissioning, operator training, defined wear-part kits with US stocking. Conventional: remote support only; parts shipped from overseas on failure. |
PET Bottle Washing Line FAQs
Straight answers to the questions US buyers ask before requesting a proposal.
How much does a PET bottle washing line cost?
Do I need hot washing, or is cold washing enough?
What capacity should I choose?
Can the line run on US 480V 3-phase power?
Are the control panels UL-listed?
How does installation and commissioning work in the US?
What flake purity can I expect?
How much water and power does it use?
What do you need from me for an accurate proposal?
How long from order to running production?
Get a Custom PET Line Proposal
Send bale photos or video, your target capacity, and the flake outlet you’re selling into. We’ll return a configuration, layout, utility schedule, and itemized pricing.
What Customers Value Most
Typical feedback from PET bottle recycling projects after commissioning.
“Label and glue removal improved significantly after commissioning. Flake quality is stable.”
“The line runs steadily on mixed bottles. Training and ramp-up support were practical.”
“We like the modular design — easy to upgrade sorting as our input stream evolves.”