Skip to main content

SOLUTION

Fill Level Inspection Systems

Camera-based checks of fill height, cap presence and cap seating on every bottle, with under- and over-filled containers rejected from the line.

Fill level inspection confirms that every container is filled to the right height before it is capped, labelled or packed. We do it with a camera and a light at the conveyor rather than a sensor on the filler, so the same station can also check that the cap is present and seated. The method depends on the container: clear, amber and translucent bottles can be inspected through the wall, while a camera cannot see the liquid in an opaque one, and we tell you that at feasibility rather than quote a system that cannot work.

Water bottles on a conveyor passing a camera and backlight, one bottle under-filled, with a pneumatic reject beside the line

Capabilities

Fill height against upper and lower limits
Cap presence and cap seating in the same image
Clear, amber and translucent containers
Automatic reject of under- and over-filled bottles
Images kept for every rejected container
Integration with your existing conveyor and filler

How we deliver it

Feasibility on your bottles

Send good, under-filled and over-filled samples. We image them under the lighting we intend to use and show you the separation before quoting.

Lighting chosen for the container

Backlighting through the bottle suits clear and translucent containers. Foam, the meniscus, bottle colour and label position all move where the fill line appears, so they are settled on your samples, not assumed.

Trigger and reject timing

Each container triggers the camera, and the reject is timed to the conveyor so the bottle that failed is the one that leaves the line.

Records for QA

Results and images of rejected containers are kept, so quality staff can see why a bottle was rejected and whether the filler is drifting.

See it running

When this is the right fit

Fill height is checked by sampling or by eye today, and short-filled bottles still reach customers
Your containers are clear, amber or translucent, so the liquid is visible through the wall
You also need to confirm the cap is present and seated before cases are packed

Fill Level Inspection Systems: common questions

Which liquids can a fill level inspection system check?

Our demonstration line ran water. The method is not specific to water: any liquid whose level a camera can see through the container can be inspected the same way, whether it is clear, coloured, oily or thick. We confirm yours on your own filled samples before quoting.

Can you inspect opaque bottles?

Not with a camera looking through the wall, because the liquid cannot be seen. We tell you that at the feasibility stage instead of quoting a system that cannot work, and suggest what can be checked instead, such as cap presence and seating.

What about foam or a curved meniscus?

Both move where the fill line appears. The lighting and the measurement are set up on your samples, with your liquid and your bottle, so foam and the meniscus are accounted for rather than assumed.

Do we have to change our filling machine?

No. The camera, light and reject sit on the conveyor after the filler, and the reject is timed to the conveyor so the bottle that failed is the one removed.

What happens to a rejected bottle?

It is pushed off the line, and an image of it is kept with the result, so quality staff can see why it was rejected and whether the filler is drifting.

How do we start?

Send good, under-filled and over-filled samples of your bottles. We image them under the lighting we intend to use and show you the separation before we quote.