Liquid fill-level inspection
Check the fill height of still, carbonated, viscous and foaming liquids at production speed.
Explore solution →Fill-level inspection systems UK
Fill-Level Inspection Systems for UK Production Lines
A fill-level inspection system compares the presented container or product with agreed fill criteria, then controls failed packs. Choose vision, X-ray or weight-based checking from the pack, product and defect evidence, and prove sensing, tracking and rejection together with real production samples.
- ✓ Vision & X-ray options
- ✓ New lines & retrofits
- ✓ Automatic reject integration
Explore the system
UK-wide
line integration
Format-ready
recipe changeovers
Actionable
trend monitoring
Complete
detect-to-reject scope
Fill inspection that fits the process
Protect quality without creating a new bottleneck.
The best inspection system is not simply a camera beside a conveyor. It is the right sensing method, presentation, timing, decision logic and reject device engineered around your product.
Oxford Vision Systems designs fill-level inspection around real production conditions: container variation, foam, bubbles, settling powder, opaque packaging, line vibration, changing speeds and limited space. The result is a dependable quality gate that operators can understand and production teams can use.
Inspection capabilities
One specialist partner for the complete check.
Start with a single fill check or combine multiple quality criteria at one controlled inspection point.
Powder fill-level inspection
Identify low, high or absent fills in tubs, jars, bottles and other rigid packs.
Explore solution →Tablet & capsule counting
Verify product count or detect missing doses before capping, sealing or cartoning.
Explore solution →Missing-product detection
Confirm that every cavity, container or multipack position contains the required product.
Explore solution →Overfill & underfill detection
Catch giveaway, incomplete fills and filler drift before non-conforming packs travel downstream.
Explore solution →Bottle & jar fill checks
Inspect glass and plastic containers across changing formats, colours, closures and label positions.
Explore solution →Transparent containers
Use controlled lighting and machine vision to measure a visible liquid or product boundary.
Explore solution →Opaque containers
Apply X-ray or another suitable sensing method where the contents cannot be seen externally.
Explore solution →Vision-based inspection
Combine fill checks with cap, label, colour, shape, code and presence inspection where required.
Explore solution →X-ray fill-level checking
Inspect cans, coloured glass, cartons and opaque packs without opening or contacting the product.
Explore solution →Filler feedback & trends
Turn inspection results into actionable production data and controlled feedback to the filling process.
Explore solution →Automatic pack rejection
Remove failed packs with a reject device matched to the line, container and available space.
Explore solution →Choose the inspection principle
Vision where you can see it. X-ray where you cannot.
The pack, product and defect determine the technology—not the other way round.
Machine vision
Visible fill boundary
Vision-based fill inspection
Controlled illumination makes the product boundary measurable. The camera checks each pack against the selected recipe, even as ambient conditions around the line change.
- Clear and translucent glass or plastic containers
- Single or multi-camera views for complex shapes
- Liquid level, foam band, product presence or count
- Optional cap, label, colour, shape and code checks
X-ray inspection
Hidden contents
X-ray fill-level checking
X-ray inspection reveals the fill or product mass within containers that ordinary cameras cannot see through, delivering a non-contact decision without opening the pack.
- Metal cans, cartons and opaque plastic containers
- Coloured glass and heavily printed packaging
- Underfill, overfill and missing-product checks
- Integrated tracking, rejection and fault monitoring
Beyond pass or fail
Find drift before it becomes waste.
A rejected pack protects the customer. Trend information protects the process. We can structure inspection data so production teams can see developing variation, identify repeat faults and make earlier interventions.
Track
fill deviation by time, format, batch or lane
Alert
operators before results reach reject limits
Feedback
to compatible filling equipment where appropriate
Line 2 · 500 ml
Illustrative live trend
Upper limit
Target
Lower limit
Mean level
99.8%
Within limits
Stable
Trend
Rising ↗
Powders & solid dose
Liquids are only the start
Powder, tablet and capsule checks.
Settling powder, irregular product presentation and small solid doses need carefully selected lighting, views and timing. We develop the inspection around the true defect and the point at which it is most visible.
Fill height
Low, high or missing powder in rigid packs
Product count
Tablet, capsule, cavity and kit completeness
Presence
Confirm components before closure or sealing
Combination
Pair contents checks with closure inspection
Choose the right route
Answers for the pack, defect and production risk.
Use the selection guide for an initial technology choice, then explore the specific quality check you need to control.
Vision vs X-ray guide
Compare transparent and opaque-pack methods →
Bottle & jar inspection
Plan full-container fill checks →
Overfill & underfill
Control shortage and product giveaway →
Missing product
Verify presence, count and completeness →
Vision packaging inspection
Combine level, cap, label and code checks →
Filler trends
Find drift before reject rates rise →
Can fill inspection
Inspect opaque beverage and food cans →
Checkweigher fill control
Verify underweight and overweight packs →
Foaming liquids
Control foam, bubbles and carbonation →
Vials & ampoules
Plan pharmaceutical liquid-fill checks →
Retrofit inspection
Add fill control to an existing line →
A practical route to production
Engineered around samples, speeds and risks.
-
01
Define the defect
Agree good and bad limits, pack formats, products, speeds and reporting needs.
-
02
Prove the method
Use representative samples to establish the sensing, views, lighting and tolerances.
-
03
Engineer the cell
Design mechanics, controls, guarding, tracking, recipes and the reject arrangement.
-
04
Integrate & support
Install, commission, train operators and support the system through production.
Applications
Inspection for demanding production environments.
Systems can be configured for wet, dry, high-care and regulated areas, subject to the application and project specification.
Food & beverage
Bottles, jars, cans, tubs, powders, sauces, oils, drinks and ingredients.
Pharmaceutical
Liquid medicines, tablets, capsules, vials, dosing packs and kit completeness.
Cosmetics & personal care
Creams, oils, lotions, powders, glass packs and premium containers.
Household & chemical
Detergents, cleaners, treatments and other filled rigid containers.
Automatic reject systems
A detection is only useful if the failed pack is controlled.
The reject mechanism is selected around pack stability, line speed, conveyor construction and the available footprint. Tracking ensures the decision follows the correct product from inspection to removal.
Fill-level inspection FAQs
Useful answers before your line assessment.
Every project starts with the pack, product, speed and defect. These are the questions we are most often asked.
Ask a project questionCan one system inspect both overfilled and underfilled containers?
Yes. A fill-level inspection system can be configured with upper and lower acceptance limits so that both overfills and underfills are identified. The practical tolerances depend on the container, product behaviour, line speed and inspection method.
How do you inspect opaque bottles, jars or cans?
Where the fill boundary is not visible, an X-ray or alternative sensor-based method may be appropriate. We assess the pack material, product density, container geometry and required accuracy before recommending the inspection principle.
Can fill inspection be added to an existing production line?
In many cases, yes. We review conveyor width, line height, speed, pack spacing, available footprint, electrical interfaces and reject space before engineering a retrofit solution.
Can the same camera also check caps, labels and date codes?
Often it can, provided the required views, lighting and image resolution are compatible. A multi-camera system may combine fill level with closure, label, print, colour, shape and presence checks at one inspection station.
What happens to a failed pack?
A tracked reject signal activates the selected reject device at the correct downstream position. Options can include air blast, pusher, sweep arm, drop flap, lane diversion or stop-and-alert, with reject confirmation where required.
Can inspection results be used to improve filler control?
Yes. Trend data can highlight gradual drift, valve-to-valve variation and recurring faults. Where the filler supports a suitable interface, inspection data may also be used for controlled feedback rather than relying only on end-of-line rejection.
Start with the real application
Show us the pack. Tell us the speed.
Send a short description, pack photographs or samples and your line speed. We will help identify the most suitable inspection and rejection approach.
Does the defect concern fill height, quantity or missing contents?
Fill height, delivered quantity and product presence are related but different questions. Define the failure you need to catch before comparing inspection technologies. No method should be selected solely because another container looks similar.
Visible level is the decision
A vision trial needs a visible product boundary in the actual container. Include foam, bubbles, sloping surfaces, labels and normal bottle position. Agree which boundary is measured and when the image is taken. A height limit should not automatically be presented as a volume limit across different bottle shapes or product conditions.
The product cannot be seen from outside
For opaque or heavily obscured packaging, review an appropriate alternative sensing route with representative good and failed packs. Confirm the demonstrated defect range and any ambiguous conditions. A successful presence check does not establish exact product count or weight unless that separate requirement has been demonstrated.
The requirement is underweight or overweight packs
Assess a weight-based check against the filled-pack specification and variation in empty packaging. Distinguish gross pack weight from the net product result being inferred. Confirm the handling, line speed, measurement method and reject response. Where two checks answer different quality questions, document both rather than forcing one result to stand for all pack quality.
Continue with Compare the fill-inspection routes · Weight-based fill control · Automatic reject integration.