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PCB laser marking machines are commonly classified into UV (355nm) laser marking machines and fiber laser marking machines, and there are significant differences in their principles and application scenarios. UV laser is a cold processing method, relying on photochemical reactions to break the molecular bonds of the material, with a very small thermal influence area and will not burn the PCB substrate, copper foil, or surrounding components, making it suitable for FPC soft boards, HDI boards, fine QR codes on soldering paste surfaces, and tiny characters marking; fiber laser is a thermal processing method, with strong energy, suitable for marking metal pads, aluminum substrates, and metal casings, with fast processing speed and high cost performance.

Dongguan Mingrui Technology Co., Ltd. can recommend suitable models based on the customer's PCB board type, marking content, precision requirements, and production capacity. UV models can avoid carbonization and board burning problems, suitable for high-reliability export orders in automotive electronics and medical electronics; fiber models are suitable for large-scale aluminum substrate and metal layer PCB production. Equipment parameters can be stored, and different product formulas can be called at one click, reducing line change and debugging time. Mingrui Technology can assist foreign trade customers in sample marking tests to quickly confirm the marking effect and avoid production risks.