KIWL Bottle Washer
A returnable bottle washer that removes labels and mould reliably while recovering caustic, because water and chemical cost per thousand bottles is where the machine earns its keep.
Key Specifications
| Rated output | 6,000 / 12,000 / 24,000 bottles per hour |
|---|---|
| Stages | 8 / 16 / 24 soaking and spraying zones |
| Caustic temperature | 75-85 degrees C |
| Label removal | ≥ 99.9 percent on paper and foil labels |
| Caustic recovery | Integrated filter and heat recovery |
| Water per bottle | < 0.6 L with counter-current rinse |
| Bottle range | 250 ml - 750 ml returnable glass |
Why stage count is the specification that matters
Label removal and mould kill both need soak time at temperature. An eight-stage machine handles lightly soiled bottles from a closed loop; a 24-stage machine handles bottles returning from warm distribution with dried residue. Buying fewer stages than the soil level requires is the most common cause of a washer that never reaches its rated output.
Caustic recovery changes the operating cost
Caustic is the largest consumable in a washer. A recovery loop with filtration returns usable caustic to the bath and cuts fresh chemical by 20-30 percent, which typically pays for the option within two years on a 12,000 BPH machine.
Counter-current rinse for water use
Fresh water enters at the final rinse and flows backwards through the stages. This is what brings consumption under 0.6 L per bottle, against 1.5-2 L on a once-through rinse.
Typical Applications
- Breweries with returnable fleets — Returnable glass only pays if the washer keeps label and mould rejection low enough for the bottles to be refilled.
- Bottlers in markets with deposit schemes — Deposit systems return heavily soiled bottles; the higher stage count matters more than throughput here.
- Breweries cutting water cost — Counter-current rinse and caustic recovery together cut water and chemical spend by a third.
Related Equipment
Frequently Asked Questions
How much caustic does it consume?
Roughly 0.2-0.4 kg per 1,000 bottles with recovery, against 0.5-0.7 kg without.
Can it handle one-way bottles?
Yes, but a one-way bottle normally only needs a rinser. A full washer is only economic with returnable glass.
What maintenance does the chain need?
Chain lubrication weekly, pocket inspection monthly, and annual chain tension and wear measurement.
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