PCB Laser Marking Machine

High precision CCD realizes automatic positioning,reading code and rating All That You Need to Know

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Product Introduction

Introduction

According to IPC (institute of printed circuits), the value of the total created PCBs in USA in 2011 October stood at $24 billion. With the passage of time, the dependence of our society has increased on electronics manifolds. Subsequently, the use of PCBs has increased rapidly over the years.

Understandably, the marking of the PCBs is a compulsory requirement for all PCB manufacturers/vendors. Marking of PCBs give authenticity to the PCB and helps in increasing sales for the PCBs and making a market presence.

Currently, there are multiple methods of marking a PCB that are widely used in the industry. These methods include Ink markings, Stamps, Stickers and Laser Marking Technique, to mention a few methods. Although, different manufacturers use different methods as they have different priorities for cost, quality and time of labelling. But we will show it to you that laser marking machines stand out from all other methods as they offer the cheapest, most effective, easy to use and long-lasting PCB labels among all others.

Benefits of PCB Laser Marking over Chemical/Sticker Marking

Let’s have a brief look at the major benefits of using a PCB laser marking machine over other contemporary methods of labeling.

Cost-Effective

Laser marking of PCBs cost substantially lower than the same amount of labeling done by ink/chemicals. According to estimates, the bulk labeling of PCBs can cost $ 0.02 per marking with laser marking machine as compared to the $ 0.07-0.09 per marking cost with Ink labels.

Thus, PCB laser marking can substantially reduce the cost of labeling for PCB manufacturers.

Clarity of Label

The final results of PCB marking are substantially different for Ink/Stickers and Laser markings. The ink/sticker marks are not very clear and can create issues during manual or scanner reading. On the other hands, the laser markings on PCBs create crystal clear markings that are easy to read by the naked eye and digital scanners.

Time-Saving

Inked marking or sticker marking of PCBs is a semi-auto to manual process which requires a considerable amount of manual labor and expertise. In comparison, the laser marking of PCBs is a fully-automated process that saves time and labor and produces highly efficient results.

Easy to Use

In addition, the PCB laser marking machines are extremely easy to use. The fully automated process helps you deal with the marking process like any other conveyor processing system. The fully-automated conveyor system makes it possible for you bulk-print your PCBs just by the click of a single button.

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The longevity of the Marking

Ink markings and stickers tend to lose their illegibility over time. Thus, PCBs that are older than a few years have markings that are hard to read. Whereas, the laser marking is permanent and is still very clear after ten to fifteen years of use.

Thus, it is highly recommended for the PCB manufacturers to use laser marking techniques for long-lasting markings.

Environment-Friendly Marking Scheme

Most of the marking inks that are generally used for PCB markings are not environment-friendly. As a result, it poses a grave danger to the environment to mark PCBs using hazardous inks. Whereas, when you use the laser marking methodology for PCBs, you are creating an environment-friendly marking scheme.

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The Process of PCB Laser Marking

Marking the PCB is a regulatory requirement on PCBs. Though as a PCB manufacturer you can use multiple methods for marking the PCBs, the best and most effective among all the methods is the laser marking method.

The process of laser marking PCBs involves the movement of the PCB under a low powered laser beam that causes gradual discoloration of the areas under focus. With the highly-efficient laser marking machines, you can select the exact numbers and the QR code or barcode that you want to mark the PCBs with.

Once the PCB is passed under the laser, it causes the area under focus to become decolorized, giving rise to oxidation of the underneath surface. The oxidized area turns black and appears clearly against the background color of the PCB plate.

Things to look for in a PCB Laser Marking Machine

A few of the factors that you need to look at while selecting the Laser marking machines are as follows:

The Type of Laser Used

While selecting a laser marking machine it is extremely important to determine the type of laser being used in the machine. Subsequently, the printing quality of the machine is directly dependent on the type of laser used in the machine.

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