Wuxi PCB Board QR Code Laser Marking Manufacturer
With the rapid development of the electronics industry, PCB circuit boards, as core components of electronic products, have seen increasing importance placed on their quality control and traceability. Laser marking technology, renowned for its high precision, efficiency, and eco-friendliness, plays an increasingly vital role in PCB identification processing. Within the PCB industry, it is specifically employed to engrave traceable information—such as barcodes, QR codes, characters, and graphics—onto circuit boards. This enables automated, intelligent management systems, meeting demands for refined production, quality control, and process enhancement.
Advantages of PCB Laser Marking Technology
Laser marking technology offers the following significant advantages over traditional screen printing:
1. High precision and clarity: Laser marking machines can produce exceptionally clear QR codes on PCB boards.


2. Non-contact processing: Laser marking is a non-contact process that does not cause physical damage to the PCB board, ensuring the original precision of the workpiece.
3. High Wear Resistance: Laser marking delivers highly durable results, capable of engraving various logos, patterns, QR codes, and text directly onto materials, ensuring resistance to wear and tear.
4. Automation and Intelligence: Laser marking machines integrate seamlessly with automated production lines, enabling automatic feeding, positioning, engraving, flipping, and discharge. They support MES systems to achieve digital workshops.
5. Environmental Friendliness and Safety: Laser marking eliminates the use of chemical raw materials such as organic solvents and heavy metals, posing no harm to personnel or the environment.
Technical Applications
In PCB marking applications, UV laser marking machines and CO₂ laser marking are the most widely used technologies. These methods have become the preferred choice for PCB surface marking due to their minimal heat impact, excellent processing results, high precision, and fast speed.
Currently, Tor's UV laser marking machines demonstrate significant technical advantages in PCB marking. The following UV laser marking machine features excellent beam quality and a minimal heat-affected zone, enabling ultra-fine marking. It can clearly engrave QR codes on PCB boards for rapid reading, facilitating product quality traceability and automated production control.

