Master Guide to Laser Marking

How Laser Marking Works

Laser marking uses high-intensity laser beams to etch or engrave a material surface. A laser generator creates the laser beam, directed toward the material by mirrors and lenses. As the beam hits the surface, it creates a high-intensity heat zone. This vaporizes the surface material and makes a permanent mark.

The laser can be programmed to follow a specific pattern, allowing for precise and intricate markings. Moreover, the type of laser depends on the material being marked. For instance, carbon dioxide (CO2) lasers are suitable for marking organic materials such as wood and plastic. Meanwhile, fiber lasers are ideal for marking metals and ceramics.

Advantages of Laser Marking

Laser marking offers several advantages over traditional methods. Here are some of the key benefits of this technique:


Laser markings are highly resistant to wear and tear, as the marks are created by removing a small amount of material from the surface. This means the markings can withstand harsh environments, such as extreme temperatures, chemical exposure, and high moisture levels. The markings are also permanent, meaning they will not fade or rub off over time.


The laser beam is highly focused, which allows for very fine and detailed markings to be made on the surface. This precision is especially important for industries requiring highly accurate markings, such as aerospace and medical devices. The laser technology can also generate marks with resolutions as fine as a few microns.


Unlike other marking methods limited to certain materials or surface types, lasers can be used on various materials, including metals, plastics, and glass. This makes it ideal for companies working with an array of materials and need a solution that can be used across their product range. In addition, lasers can be used on different types of surfaces, including flat, curved, and irregular shapes.


While the initial investment in marking equipment can be significant, laser technology is efficient and reduces the need for consumables or maintenance. This also eliminates the need for outsourcing marking services, which can be expensive and time-consuming.


Most laser markers can be easily programmed to mark specific designs, text, or logos, allowing for easy customization of parts or products. This level of personalization is difficult to achieve with traditional methods like mechanical engraving or screen printing, where the design options are limited

Types of Laser Marking Machines and Their Applications

Several types of laser marking machines are available, each with unique features and applications. Here are some of the most common types of devices:

CO2 Laser Markers
  • CO2 laser markers use a gas-filled tube to generate a high-intensity laser beam directed onto the surface to be marked. When the laser beam hits the surface, it vaporizes a small amount of material. This leaves behind a high-quality, permanent mark. These machines are also highly versatile and can mark non-metal materials, including plastics, wood, paper, and leather.

    One of the main advantages of CO2 laser markers is their ability to produce high-quality marks quickly and efficiently. They can also precisely mark logos, text, barcodes, and other identifying information.

Fiber Laser Markers
  • Fiber laser markers are a popular choice for metal marking applications due to their high precision and ability to produce high-contrast markings. The laser beam is generated by a fiber optic laser source, which is then directed onto the metal surface. This beam also interacts with the metal, which causes a chemical change that results in a high-quality, permanent mark.

    The machines can mark various metal materials, including steel, aluminum, and titanium. They can also produce complex markings, such as 2D matrix and QR codes, commonly used for product tracking and identification.

UV Laser Markers
  • UV laser markers are unique machines that operate using a laser beam with a wavelength in the ultraviolet range. They are designed to produce clear and detailed glass, ceramics, and semiconductors markings. Unlike other machines that rely on heat, UV laser markers generate marks by directly breaking chemical bonds on the material surface.

    One of the significant advantages of these machines is that the marks are highly durable. They are resistant to wear and tear, making them suitable for applications requiring long-lasting markings. In addition, UV laser markers can produce extremely precise markings, which is essential for industries where fine details are critical.

Green Laser Markers
  • Green laser markers utilize a laser beam with a wavelength in the green range to produce markings on metals, plastics, and ceramics. The green laser wavelength is shorter than the CO2 laser and longer than the fiber laser. They are often used in the medical industry for marking surgical instruments, implants, and other medical devices.

    Green laser markers are also used in the electronics industry for marking microchips, circuit boards, and other electronic components. Additionally, they are popular in the jewelry industry for marking logos, serial numbers, and further fine details on metals and gemstones.

Laser technology has rapidly advanced in recent years, with new developments and applications emerging across various industries. From healthcare to manufacturing, lasers are being used innovatively to improve efficiency and quality. The following are examples of the latest advancements, applications, and potential future developments in laser marking:

Find the Right Marking Solution With Universal Marking Inc.

Universal Marking Inc. is the ultimate one-stop shop for all your part marking requirements, providing more than 30 top-notch services! Our advanced technology guarantees top-quality workmanship. We also cater to various industries, such as utility, aerospace, automotive, retail, and steel fabrication.

Contact us today to discover more about our services! You can also request a quote, and we will promptly respond.

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The One Stop For All Your Part Marking Needs

AS9003 Approved


Call (562) 634-6300     |     Toll-Free (800) 803-8333     |     Fax (562) 633-0600     |     14053 Orange Ave. Paramount, CA 90723     |     Monday - Friday 7:00 a.m. - 4:00 p.m.

UMI Logo

The One Stop For All Your Part Marking Needs

AS9003 Approved


Call (562) 634-6300

Toll-Free (800) 803-8333

Fax (562) 633-0600

14053 Orange Ave.
Paramount, CA 90723

Monday - Friday

7:00 a.m. - 4:00 p.m.