Pinhole Inspection AI

Add a real-time detection layer to every web, coat, and sheet with vision AI for pinhole inspection. Built for the operations where the defect is a point of light tens of microns across on a web moving hundreds of meters a minute, a coating that looks flawless until salt spray finds the one gap, or the foil lid that seals perfectly around a hole already in it. Whether you're running film and foil webs, coating and painting lines, or fabricating sheet metal and welded assemblies, Roboflow finds and locates pinholes as they're made, with roll and lot records behind every catch.

Films, Foils, and Webs:

• Detect pinholes in aluminum foil, barrier films, and laminates against backlight at line speed
• Map every detection to cross-web and down-web position, building a roll map that drives splice and disposition decisions
• Tell pinholes from gels, dust, and surface debris, so the reject log fills with holes rather than housekeeping

Coatings and Sheet Metal:

• Catch coating and paint pinholes on parts and continuous surfaces, where one gap becomes the corrosion point
• Detect pinholes in sheet metal and welds during fabrication, before assembly hides them and pressure finds them
• Inspect can and container lacquer coverage, where a pinhole means product touching bare metal

Lines, Rolls, and Systems Integration:

• Trigger rejects, marks, and flags in real time through PLC integration, at web speed
• Keep roll, lot, and position records with imagery, so a claim traces to a meter mark instead of a month of production
• Trend pinhole rates by line, material, and shift, catching the die, coater, or process drift behind a rising count

Bring intelligence to every web and coat today. Stop pinholes from becoming spoilage recalls, corrosion claims, or leaks discovered under pressure.

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More About Pinhole Inspection

What is pinhole inspection with Vision AI?

Pinhole inspection with vision AI uses computer vision models to detect pinholes: in films, foils, and laminates against backlight on running webs, in coatings and paint on parts and continuous surfaces, and in sheet metal and welds during fabrication. Models trained on your actual materials detect and locate every pinhole at line speed, with roll, lot, and position records that support packaging programs, coating specifications, and claim investigations.

Can Vision AI catch pinholes at web speed without false alarms?

The running web is the hard case: a defect tens of microns across on material moving hundreds of meters a minute, where backlight makes a true pinhole a point of light but dust, gels, and thin spots can masquerade as one. Deep-learning models trained on your actual materials and lighting learn the difference between a hole, a gel, and a speck of debris, hold that judgment across materials and speeds, and log borderline detections for review instead of stopping the line on housekeeping, so the reject record stays trustworthy.

Does this replace spark testing and leak testing?

No. High-voltage holiday and spark testing remains the electrical standard for coatings on conductive substrates, and leak and burst testing remains how finished packages get qualified. Vision AI adds what those tests don't: detection at line speed while the material is being made, position data that turns a failed test into a located cause, and coverage on materials and steps electrical testing can't touch. The spark tester proves the coating; the vision record shows where and when the holes happened.

Can it integrate with our web lines, coaters, PLCs, and MES?

Yes. Roboflow Inference exposes a standard API and supports common industrial protocols, so pinhole events flow into your existing systems: web and converting line PLCs from Allen-Bradley and Siemens driving rejects and markers, coater and line controls, MES and ERP platforms like SAP and Oracle, and SCADA and HMI platforms like Ignition and AVEVA, through REST, MQTT, OPC UA, and direct database writes. Every detection carries line, roll or part, position, timestamp, and imagery, with a full audit trail behind every lot.

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