What a liquid filling machine does
An automatic liquid filling machine moves containers under one or more nozzles, doses a set volume or weight into each, and passes them on to capping. Many machines combine filling and capping on one frame (a monoblock), which saves floor space and conveyor transfers.
Step 1: match the filler to the container size
| Container | Typical machine | Catalogue example |
|---|---|---|
| 1–3 ml cartridges and syringes | Precision pump filler with crimping | KS4 cartridge & prefilled syringe filling and crimping machine |
| 2–200 ml small bottles | 2- or 4-nozzle filling & capping monoblock | Small bottle filling & capping monoblock (2–200 ml) |
| 10–150 ml dropper bottles | Filling, dropper insertion and capping | Rotary dropper bottle filling & capping machine |
| 50–1000 ml bottles | 4-nozzle filler with capping | Liquid & lotion filling and capping machine (50–1000 ml) |
| 50–500 ml at high speed | Rotary tracking filler | Rotary tracking filling & capping machine for oral liquid |
| 5–30 L pails and buckets | Servo tracking pail filler | DT30 pail & bucket filling and capping machine (5–30 L) |
Step 2: match the dosing method to the product
Thin, clean liquids (water, perfume, essential oil) can use peristaltic or small piston pumps. Lotions, syrups and shampoos use piston or pump fillers. Thick products such as honey or peanut butter need positive-displacement piston or rotor pumps — see choosing a filler by viscosity and liquid filling machine types explained.
Step 3: size the output
Speed depends on volume, nozzle count and product. As examples from our specifications: the Y4 four-nozzle liquid filling & capping machine lists 30–60 bottles per minute for 2–150 ml; the Liquid & lotion filling and capping machine (50–1000 ml) lists 10–35 bottles per minute for 50–1000 ml; the rotary tracking filler lists 100–200 bottles per minute. Work out your daily volume ÷ working minutes, then add 15–20% headroom.
Step 4: check accuracy
Most catalogue fillers list an accuracy of about ±1% or ≥99%, depending on product. Weight-based or servo piston filling gives the most consistent results for high-value liquids. Ask for a test report with your own product.
Step 5: plan the closure and the rest of the line
- Screw caps, pumps, triggers, droppers or plugs — the capping head must suit the closure. See screw capping machines.
- Do bottles need washing first? See industrial bottle washing.
- Labelling, coding, cartoning and case packing after filling — see planning a bottle filling line.
Materials and hygiene
Product-contact parts are normally stainless steel. For food and cosmetics, ask for sanitary fittings and quick-release nozzles for cleaning; for corrosive chemicals, ask which seal and pump materials are used.
What to send for a quotation
A photo or video of the product, its viscosity (or “like water / like yogurt”), the bottle and cap (photos or drawings), fill volumes, bottles per minute and your voltage. Use the quote form or WhatsApp.
Questions and answers
How much does a liquid filling machine cost?
The price depends on the number of nozzles, the dosing method, automation level and whether capping is included. Send your product, bottle and output for a quotation.
Can one liquid filling machine handle several bottle sizes?
Yes, within its range. Changing size usually means adjusting guides and fill volume, and sometimes changing nozzles or capping chucks.
What is the accuracy of an automatic liquid filling machine?
Our catalogue fillers list about ±1% or ≥99% accuracy, depending on the product and container.
Which liquid filling machine is best for small bottles?
For 2–200 ml bottles, a compact 2- or 4-nozzle filling and capping monoblock is usually the best fit.
Related buying guides
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