Scanning codes on crankshafts with water droplets on them

In the manufacturing process of automotive parts, especially for traceability management of metal components like crankshafts, reading codes after the washing process is a major challenge. After washing off cutting oil, water droplets adhering to the part's surface cause diffuse light reflection, significantly reducing the contrast of directly marked (DPM) QR codes and DataMatrix codes. This has led to frequent reading errors with conventional code readers, causing production line stoppages and increased manual labor, which in turn reduces productivity.

KEYENCE's SR-X Series AI-powered code reader ensures stable operation in such harsh environments. Its advanced image processing algorithm removes and corrects the effects of water droplets, oil films, and even hairline finishes and scratches on metal surfaces in real time. It accurately extracts code information under any condition, enabling reliable reading. This innovative technology eliminates reading errors even on wet crankshafts immediately after washing, contributing to the establishment of a complete traceability system and enhanced quality control without stopping the production line.

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