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Laser Marking Systems / Laser Markers

Choose by Laser Marking Application

Metal Marking
  • Black Marking on Metal
  • White Marking on Metal
  • Engraving
  • Highly Reflective Targets
  • Metal Processing
Plastic Marking
  • Plastic Marking
  • Coating Removal
  • Transparent / Translucent Objects
  • Damage-free Marking
  • Plastic Processing
Other
  • Ceramic Marking
  • Paper/Wood Marking
  • Glass Marking
  • Rubber Marking

Laser Marking Systems / Laser Markers Product Lineup

Discontinued Series:
  • 3-Axis Hybrid Laser MarkerMD-X series

    MD-X series - 3-Axis Hybrid Laser Marker

    MD-X laser markers are versatile, general-purpose systems for marking and processing a wide range of materials. These powerful hybrid marking systems boast an internal vision system, full-field autofocus and marking analytics tools.

    Applications

    Steel tools

    Plastic cases

    Castings

    IC packages

    Features
    Automatic focus and position correction

    Part tilting and misalignment commonly occur during production due to product deviation, transportation, or placement. Conventional laser markers can't account for any part deviation, meaning their marks become irregular and faded when a tilt is introduced. Product shifting can also result in misaligned marking positions, requiring fine jig adjustments and program corrections to fix.

    MD-X laser markers overcome the problem of tilted or misaligned parts with a built-in distance sensor and vision system.

    Left: Out of focus/Right: In focus

    Left: Incorrect position/Right: Correct position

  • 3-Axis UV Laser MarkerMD-U series

    MD-U series - 3-Axis UV Laser Marker

    MD-U UV laser markers are designed for high-contrast, damage-free marking applications. UV lasers excel at marking plastics, glass, and other heat-sensitive materials. The MD-U's marking head contains an embedded multi-function camera that can autofocus to a part, check-marking quality, and read 2D codes.

    Applications

    Multicolor plastic parts

    Coated metal parts

    Stainless steel medical parts

    Packing film

    Features
    High-contrast, damage-free marking

    Compared to typical lasers, UV lasers use a highly absorptive wavelength (355 nm) to mark parts. The MD-U Series takes advantage of this high absorption rate to ensure that no extra heat stress is applied to materials (including those with high reflectances such as gold, silver, and copper). This minimizes soot and burrs caused by marking and processing.

    * The values are for reference only and do not account for surface reflectivity.

  • 3-Axis Fiber Laser MarkerMD-F series

    MD-F series - 3-Axis Fiber Laser Marker

    MD-F fiber laser markers are high-powered machines designed for deep engraving and high-speed processing. 3-Axis scanning and on-the-fly focal adjustments give the MD-F series a leg-up over conventional laser engravers.

    Applications

    Steel engine blocks

    Steel bearings

    Vehicle body frames

    Aluminum cans

    Features
    3-Axis Scanner Control

    Conventional fiber lasers suffer from sub-optimal scanner controls, which directly affects their marking time and quality. MD-F laser markers optimize their scanner movement, providing better marks in less time for nearly every application.

    Black anneal (wobble)

    Vivid black marking is possible without bumps or cracks.

    Deep-engraving control

    Clear visibility is maintained even when a mark is painted over.

    Cutting control (scratch control)

    High-speed scanners reduce product distortion caused by heat.

  • 3-Axis CO2 Laser MarkerML-Z series

    ML-Z series - 3-Axis CO2 Laser Marker

    ML-Z CO2 laser markers are incredibly versatile. They can mark opaque objects like paper, wood, rubber, ceramics, and transparent objects like glass. CO2 lasers are also used for gate cutting, drilling, and decapsulation.

    Applications

    Plastic bottles

    Glass wafers

    Wood marking

    Gate cutting

    Features
    3-Axis Beam Control

    Three-dimensional control enables marking on non-flat surfaces such as cylinders, slopes, and stepped shapes. It also simplifies product and tooling changeovers. The wide 300 x 300 mm area can efficiently mark and process products simultaneously, helping reduce equipment costs.

  • Telecentric Green Laser MarkerMD-T series

    MD-T series - Telecentric Green Laser Marker

    MD-T green laser markers use an integrated telecentric lens to keep the laser beam perpendicular across the entire marking surface. This ensures micron-level marking and processing throughout the target area.

    Applications

    Copper lead frames

    Small stainless steel objects

    Ceramic LED chips

    Glass-epoxy BGA packages

    Features
    Ultra-high definition marking

    Traditional lasers struggle to keep their marking area in focus due to F-Theta lenses. MD-T laser etching machines use telecentric lenses to emit their beam straight down across the entire field.

    Conventional: Diagonal incident laser beam

    MD-T: Perpendicular incidence over the entire area

What is Laser Marking?

Simply put, laser markers use high-energy light to mark the surface of a part. Laser markers vary by the wavelength of light, and different wavelengths are optimized for marking and processing different materials.
The majority of industrial laser markers are YVO4 lasers, fiber lasers, UV lasers, and CO2 lasers.
Laser markers are used to permanently mark text, logos, barcodes, or 2D codes on parts in all industries. Common marking types include oxidizing, annealing, engraving, etching, discoloration, and processing.

Benefits of Laser Markers

Permanent marking

Inkjet and pad-printing systems leave impermanent marks that can be rubbed off or fade away. Laser marking does not wear off or contaminate the product being marked.

Zero consumables

Because laser markers use light to directly mark products, there is no need to purchase consumables, clean print heads, or perform other routine maintenance tasks that are necessary with conventional ink and label marking methods. This also helps reduce associated maintenance costs.

3-axis marking

Typical systems can only mark in 2 dimensions (X and Y). KEYENCE laser markers have 3-axis beam control, allowing them to mark across a larger area, compensate for part variation, and correct for mounting restrictions with zero physical equipment adjustments.

Laser Marker / Laser Engraver Case Studies

Laser marking in the automotive industry

Safe products and safe working environments are critical in automotive manufacturing. There is a high demand for product traceability and process management on both metal and plastic parts, and laser markers are perfectly designed to meet those needs.

Laser marking in the electronics industry

Electronic parts require high-quality and low-damage traceability. As part sizes continue to shrink, the demand for precision processing has increased. Laser markers are increasingly becoming the norm thanks to their small beam size and non-contact marking method.

Laser marking in the medical industry

The majority of medical instruments are small and undergo repeated disinfectant or sterilization processes. This section introduces and explains UDI medical marking applications on plastic and metal instruments.

Laser marking on metal

Learn the principles of metal marking and see marks on aluminum, stainless steel, iron, copper, cemented carbide, and gold plating.

Laser marking on plastic

Learn the principles of plastic marking and see marks on a variety of materials such as ABS, epoxy, and PET.

Laser marking on other materials

This section describes the optimal laser marker for glass, paper, ceramics, PCBs, and other materials and provides marking examples.

Frequently Asked Questions About Laser Marking Systems / Laser Markers

Laser markers work by scanning a focused beam of high-energy light across the surface of a part in the desired pattern. Different contrast, depths, and surface finishes can be achieved depending on the laser wavelength and part material.

Laser marking causes discoloration on the surface of a part, whereas laser engraving actually removes material and "digs in" to a part.

Practically speaking: no. Laser etchers interact directly with the surface of a part, so the only real way to remove a laser mark is to remove the material it's on.

Knowledge About Laser Marking Systems / Laser Markers

KEYENCE has put together a rich collection of practical, knowledge-based information for getting the most out of a laser marker. This website contains actual marking applications and advice on how to choose a laser marker.

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