Jar inspection for glass, plastic and closure quality

Inspection overview

Control the details that matter on filled jars

Jar lines create demanding optical conditions: glass reflections, textured products, embossed features and shiny metal lids can all reduce contrast. Controlled lighting and stable presentation are therefore as important as camera resolution.

Oxford Vision Systems can inspect before and after capping or labelling, then combine results to create one pass/fail decision for each jar. The system can exchange signals with the capper, labeller, coder, conveyor PLC and reject equipment.

Checks that can be combined

The final inspection set is selected from the visible features, risk, product presentation and achievable image resolution.

• Jar presence, orientation and profile
• Fill level or gross underfill indication
• Visible rim, neck and glass defects
• Lid presence, height, skew and colour
• Tamper button or closure feature presence
• Label position, identity and print checks
• Date and batch code readability
• Tracked rejection and reject confirmation

Application details we review

Early clarity on these points helps avoid false rejects, blind spots and mechanical changes late in the project.

• Clear, amber, coloured or opaque jars
• Product texture and meniscus behaviour
• Reflective metal or plastic closure finish
• Rim visibility before and after filling
• Condensation, steam or washdown exposure
• Changeover range and guide repeatability

Match the optics to your jar and product

We test representative jars, lids, labels and defect samples to separate acceptable natural variation from defects that require action.

Feasibility work establishes the camera view, lens, light, exposure and image-processing approach. We then define the enclosure, conveyor changes, controls, operator interface and rejection needed for production.