Overflow Filling Machine — Manufacturer & Supplier in China
Overflow filling machines for consistent fill level: water, wine, perfume, cleaning products. Identical fill height on every bottle.
An overflow filling machine fills each container until liquid reaches a return tube level, then excess flows back to the tank. This ensures identical fill height - critical for transparent bottles where consumers judge quantity by what they see.
Volume accuracy is +1-3% (less strict than piston), but visual consistency is perfect. Standard for bottled water, wine, spirits, perfume, and clear-bottle products.
Key Specifications to Confirm
- Fill level accuracy: +1mm
- Volume accuracy: +1-3%
- Product: thin free-flowing liquids, up to 500 cP
- Foam handling: return flow dissipates foam
- Speed: 20-100 bottles/min (inline); 200-1,000+ (rotary)
How to Source Overflow Filling Machine from China
Browse our filling machine supplier directory (610 verified factories) and shortlist manufacturers whose main products match this sub-type. Send your product details and request a video test with your actual product, film, or container before comparing prices.
FAQ
When do I need overflow instead of gravity?
Choose overflow when your bottle is transparent, your product foams, or consistent shelf appearance is a brand requirement. Choose gravity when volume accuracy matters more or the product is thicker than ~500 cP.
Does overflow filling waste product?
Excess liquid returns to the supply tank and is recirculated - minimal waste. For oxygen-sensitive products, use a closed-loop overflow with nitrogen blanketing.
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