Oxford Vision Systems
Fill-level inspection ›

Full-container quality control

Bottle and Jar Fill Level Inspection Systems UK

Automated, non-contact fill checks for bottles and jars on new or existing packaging lines, with recipe control, pack tracking and automatic rejection.

Discuss your application → 01865 416657

Direct answer

How are bottle and jar fill levels checked automatically?

A sensor or camera measures each container at a controlled point after filling. The measured liquid or product boundary is compared with the permitted high and low limits for the active pack recipe, and any failed bottle or jar is tracked to a reject device.

Clear and translucent packs are often suited to machine vision with controlled lighting. Opaque containers, coloured glass, full-body sleeves or dense decoration may need X-ray or another sensing method. Pack shape, product behaviour, speed and available line space decide the final arrangement.

What the system must do

Reliable decisions from inspection to reject.

A complete bottle inspection station controls the image or signal, identifies the correct recipe, follows the pack and records the result.

01

Detect

Check underfill, overfill, missing product, foam band or another visible level feature.

02

Track

Associate each result with the correct container as it moves towards the reject point.

03

Reject

Remove non-conforming packs and confirm the reject action where the risk assessment requires it.

Inline machine vision system checking fill levels in bottles on a production conveyor
Controlled lighting and a stable view help separate the real product boundary from reflections, embossing and changing ambient light.

Specify the application

Start with the container, product and line.

The strongest specification describes the real defect and operating envelope, not only a nominal bottle size.

  • Bottle or jar material, colour, shape, label and closure position
  • Product type, meniscus, bubbles, foam, viscosity and settling behaviour
  • Nominal fill, acceptable upper and lower limits, and required changeover recipes
  • Line speed, pack spacing, conveyor stability and available inspection footprint
  • Reject method, reject-bin control, reject confirmation and line-stop conditions
  • Required event records, counters, alarms and production-system interfaces

Typical applications

Glass, PET and plastic container inspection.

Suitability and tolerances are established from representative samples, production speed and the real operating environment.

Drink bottles Sauce and condiment jars Pharmaceutical liquids Cosmetics and toiletries Household chemicals Oils and viscous products Nutraceutical containers Food jars and tubs

Practical answers

Questions production teams ask.

Final performance is application-specific and is confirmed using representative packs, products and line conditions.

Ask an engineer
Can the same system inspect several bottle sizes?

Yes, where the mechanical and optical arrangement covers those formats. Product recipes can store the inspection region and acceptance limits for each bottle or jar. A sample review confirms whether camera height, field of view or conveyor guides must change.

Can a camera see through coloured glass or a full-body label?

Sometimes, but not always. The answer depends on wavelength, product contrast, decoration and container thickness. If a reliable optical path is unavailable, X-ray or another sensing method may be more appropriate.

Can bottle fill inspection be retrofitted?

Often it can. A retrofit assessment checks conveyor access, pack spacing, electrical interfaces, guarding, reject distance and the space available without creating a new production bottleneck.

Can the station also inspect caps and labels?

Yes when the required camera views and resolution are compatible. Fill level, cap presence or position, label presence, colour, print and code checks can often share one controlled inspection cell.

Talk to Oxford Vision Systems

Send us the pack, product, line speed and defect.

Request a line assessment → sales@oxfordvisionsystems.co.uk

What should a fill-level inspection trial include?

Use representative filled containers and describe the acceptable fill-level range. Bottle colour, label coverage and product appearance can affect the suitable inspection arrangement. Agree the conditions and examples used for acceptance, and define how inspection decisions stay associated with packs through any reject station.

Related guidance: Retrofit bottle inspection→ · X-ray inspection for opaque packs→