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PCB laser marking is a non-contact permanent marking process. It has become the mainstream marking solution in the global electronics manufacturing industry, and is widely applied to substrates such as FR4 rigid boards, FPC flexible circuit boards, aluminum substrates and HDI high-density boards. It serves industries including automotive electronics, medical electronics, industrial control motherboards, energy storage BMS boards, communication modules, consumer electronics and LED driver boards, and performs marking of QR codes, barcodes, serial numbers (SN), version numbers, logos, UL/CE/RoHS certification marks and component reference designators. Laser marks feature high temperature resistance and washing resistance. They remain clear and readable after reflow soldering, wave soldering and water washing processes, meeting traceability requirements for exported products.

Dongguan Mingrui Technology Co., Ltd. specializes in the R&D and production of PCB laser marking machines. It provides ultraviolet laser and fiber laser models, supporting offline standalone marking and inline marking solutions connected to SMT production lines. Equipped with a visual positioning system, the equipment automatically corrects PCB offset and adapts to processing of large boards, small boards and special-shaped boards. With stable laser energy and high marking consistency, it can engrave tiny characters and high-density QR codes at minimum sizes. We offer process sampling, production line connection solutions and overseas after-sales technical support for foreign trade customers, helping export-oriented PCB factories achieve full-process product quality traceability.