Laser Marking Systems / Laser Markers

KEYENCE offers a diverse collection of laser markers, ranging from Fiber to UV to CO2 systems. Our team also delivers their technical expertise, rapid support response time, same-day shipping and personalized integration so you can enjoy a fully realized traceability solution.

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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.

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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.

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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.

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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.

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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.

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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

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.

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.

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.

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Laser marking in the electric vehicle industry

As the electrification of vehicles advances, the amount of on-board motors has increased and because these omponents are critical to the function of the vehicle, a wide variety of marking for traceability is performed on these parts.

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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.

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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.

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Laser marking in the food / pharmaceutical industry

In recent years there has been a tendency to strengthen label-related regulations on a yearly basis. Due to an increasing need for serialization through unique marking on packaged items directly before shipping, there has been an increase in marking with lasers.

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Laser marking on metal

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

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Laser marking on plastic

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

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Laser marking on other materials

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

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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.

Laser Marker Applications

Laser Marking

Laser marking is a marking method that uses a focused laser beam to alter the surface of a target. The laser beam is emitted by an oscillator and scanned using a mirror (known as a scanning mirror), and a focusing lens is then used to focus the beam on the target and mark it by altering the surface.

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Laser Engraving

Laser light irradiates the focal point and etches the surface of the target for marking. A deeply engraved impression can be made by increasing the amount of engraving by increasing the laser irradiation count.

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Laser Etching

By running the laser beam along the desired path, the workpiece is etched in the desired pattern. The machining depth can also be controlled by changing the laser conditions.

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Laser Cutting

Lasers cut targets by melting/evaporating material. Other cutting methods commonly use dies or blades. Changing a laser's output power and scan speed makes it possible to partially cut a target.

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Laser Paint Removal

Removes the surface coating to uncover the material/paint beneath. Typical examples includes lighting switches in automobiles, cell phone buttons.

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Laser Drilling

Laser drilling uses light to melt/evaporate a single point and create a hole, making it possible to process targets that conventionally could only be handled using dies or drills.

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Laser Labeling

Improve processing by replacing labelers with laser markers, such as for substrate history management labels and vehicle nameplates.

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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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Metal Printing Process Instruction Manual

This quick guide introduces the basics of metal marking. Learn why different wavelengths matter and discover the various ways laser light interacts with metal parts.

Technical Guides

Resin/Plastic Laser Marking Techniques Application Guide

Choosing the right laser marker wavelength is extremely important for plastic marking. Learn what lasers work best for marking, processing, and coloring plastic in this guide.

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Practical Solutions of Laser Marking and Part Tracking Traceability Systems

2D codes have become a near-universal standard for traceability. This must-read document covers everything from code scanning principles, laser installation, predictive maintenance, and more.

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Laser Marker 2D Code Marking for Traceability

2D codes are used to store date codes, lot codes, serial numbers, and more. Users who are considering 2D code marking should read this laser marking guidebook.

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Laser Marking Equipment Guidebook

Some laser marking applications require integration with multiple devices. KEYENCE provides a total marking solution, from X/Y stages and indexing systems to head traversal systems. Learn more in this brochure.

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Laser Processing Applications

This booklet covers a wide range of laser processing techniques - such as cutting, drilling, and deep engraving - as well as welding and soldering that are unique to lasers.

Technical Guides