Reading codes on cells with adhered liquid

DPM (direct part marking) is the cornerstone of traceability in manufacturing. In the manufacturing processes of battery cells and machined metal parts, in particular, adhering cutting oil or cleaning fluid makes reading 2D codes extremely difficult. The diffuse reflection of light caused by liquids and the resulting decrease in print contrast are serious problems that directly lead to line stoppages due to reading errors and quality control risks.

The KEYENCE AI-powered code reader, SR-X Series, solves this problem. The SR-X Series utilizes its built-in versatile lighting technology and polarizing filter to intelligently remove diffuse reflections from liquid-covered metal surfaces. It instantly and automatically establishes the optimal imaging conditions. Combined with its unique, advanced reading algorithm, it can stably read DataMatrix codes even under adverse conditions where reading was previously given up on. This enables reliable individual item management without stopping the process, supporting the efficiency and quality improvement of manufacturing processes.