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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 reflectance such as gold, silver, and copper). This minimizes soot and burrs caused by marking and processing.

          • 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 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.

          Related Documents

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          IL 60143, U.S.A.
          Phone: 1-888-KEYENCE [1-888-539-3623]
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