Laser Marking Systems / Laser Markers
Laser Marking Systems / Laser Markers
Product Lineup
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.
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.
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.
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.
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.
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
Learn how laser markers are used with automotive parts. KEYENCE introduces specific laser marking in automotive and other various laser marking with cars.
Laser marking in the electric vehicle industry
Curious how laser markers are used with electric vehicles? KEYENCE introduces specific laser markings for the EV industry and other various laser marking with batteries and ECUs.
Laser marking in the semiconductor industry
Learn about the various ways laser marking has improved electronic components. KEYENCE will also explain electronic parts demand accurate marks with damage-free results.
Laser marking in the medical industry
Curious how laser markers are used in the medical industry, especially with medical device laser marking? KEYENCE introduces specific laser markings for the medical industry and other medical instruments.
Laser marking in the food / pharmaceutical industry
How are laser markers being used in the food and pharmaceutical industries? This section on laser engravers introduces industry-specific applications to help in developing new manufacturing processes.
Laser marking on metal
This section introduces metal laser marking using illustrations and applications for creating dark metal laser markings, white metal laser markings, deep laser engravings, and metal laser processing.
Laser marking on plastic
This section introduces plastic laser marking using illustrations and applications for creating dark markings on plastic, white markings on plastic, transparent markings on plastic, and plastic laser processing.
Laser marking on glass
This section introduces glass laser marking using illustrations and applications for creating white laser markings on glass, transparent laser markings on glass, and shallow laser engraving on glass.
Laser marking on ceramic
This section introduces ceramic laser marking using illustrations and applications for creating dark laser markings on zirconia and alumina based ceramic materials.
Laser marking on wood
This section introduces wood laser marking using illustrations and applications for creating high quality laser markings on wood and cardboard materials.
Laser marking on rubber
This section introduces rubber laser marking using illustrations and applications for creating high quality laser markings on a variety of different colored rubber materials.
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.
With a variety of different models and wavelengths, KEYENCE laser markers can mark a wide range of materials. These include materials such as metal, plastic, glass, ceramic, wood, and rubber. There are even more materials than listed that can be marked but some have been shown to emit harmful gases. In this event, proper guarding and fume extraction should be used to provide a safe operating environment.
When choosing the correct laser marking system for your business many factors should be taken into consideration. Throughout this process, you should evaluate all laser marking models to determine the proper wavelength, wattage, marking field of view, and safety requirements. Below are the main factors:
・Materials – this will narrow down laser marking models by wavelength.
・Time allowed for marking – with marking time you can determine wattage.
・Marking Style/Setup – whether it is a large logo or a matrix of small text this will determine the marking field of view.
・Integration style – safety is always a priority so inline vs offline solutions will change the safety requirements.
With KEYENCE having a large range of wavelength options to choose from, most materials have the ability when properly tested to be marked or etched. Some that do not properly absorb laser light or produce toxic fumes include Delrin, PVC, Glue Backing, and Foam.
In comparison to a conventional IR laser marking system, a UV laser marking system has a much shorter wavelength, typically 355nm, which gives it many advantages when marking specific materials and applications. UV light is the best option for laser marking objects made of heat-sensitive materials, such as plastics or resins. With the lower wavelength, you receive a higher absorption rate allowing for contrast marking on a wider range of materials as well.
When deep engraving with a laser marking system, any depth can be achieved depending on how much time is required to complete the mark. Depending on the material and level of depth laser marking may not be the most efficient solution.
Laser Marker Applications
Laser marking
Laser marking is a marking method that uses a focused laser beam to alter the surface of a target. This section introduces how laser marking is performed with different materials as well as the different types of laser marking machines and how they are used.
Laser engraving
Laser Engraving is the main laser process used to produce markings onto parts and products. Using a Laser engraving machine, permanent markings can be engraved onto most materials.
Laser etching
Learn about laser etching machines, the materials used and types of laser etching KEYENCE provides to help improve processes.
Laser cutting
Learn about laser cutting—the process that uses laser light to cut a target—through various examples and different ways to use a laser cutting machine.
Laser paint removal
Laser paint removal is a process that uses a laser to peel paint from a target, and surface peeling. The process that peels the film or plating from a target—through various examples.
Laser drilling
Learn how laser drilling can be used to drill holes by irradiating the laser light on a single point. Learn everything you need to know about drilling with a laser.
Laser labeling
This page includes examples of successful processing improvements made possible by replacing labelers with laser markers (such as for substrate history management labels and vehicle nameplates).
The Resources of Laser Markers
Laser etching vs laser engraving: Which to choose?
Want to know the difference between laser etching vs laser engraving? Learn about each laser marking process and which is best for you.
How does laser cleaning work?
Laser cleaning ablates any contaminants of substrate without causing any damage to the underlying material. Not only is it eco-friendly to remove a number of contaminants, but it is also used in other applications.
What materials can be marked with a UV laser machine?
What materials can engrave a UV laser engraving machine? Find out which laser is best for each material you are looking for.
EV laser marking applications
When dealing with Electric Vehicles, here are things you should note before laser marking on electric vehicles (EV) marking application.
Comparison of different types of electric vehicle battery cells
Understand the various types of electric vehicle battery cells and the advantages and disadvantages of each. Learn about the different chemical compositions, sizes, capacities, and lifespans of various EV.
Difference between UV laser and fiber laser engraving machines
Understand the differences between UV laser and fiber laser engraving machines. Learn about the advantages and disadvantages of each type and discover which one is best suited for your project.
How to choose the right laser marker for engraving
Learn more about the basics of laser engraving, including how it works, the materials used, and potential applications. Learn about the process of laser engraving as well.
Fiber vs. CO2 vs. UV: Which laser marker should I choose?
This section uses videos to explain the differences between fiber, CO2, and UV lasers and to introduce marking on and processing of different materials all in an easy-to-understand manner.
Proven laser solutions for UDI compliant stainless steel marking
Understand laser marking solutions for achieving UDI compliance on stainless steel medical devices. We explore the challenges of marking this hard material, the importance of UDI compliance, and how laser marking technology can provide accurate and permanent markings for traceability and patient safety.
Laser marking—Ensuring the safety of medical device applications worldwide
Learn how laser marking is safe with various medical devices and further understand how laser marking technology can provide accurate and permanent markings to help with traceability and prevent counterfeiting, ultimately ensuring patient safety and regulatory compliance.
The best systems for precisely laser marking surgical instruments
Discover the best laser marking systems for surgical instruments in this comprehensive guide. Learn about the benefits of laser marking and explore top laser machines to ensure efficient and accurate surgical instrument traceability.
Laser marking for traceability - An essential tool in the medical industry
Learn how laser marking allows for medical traceability. Discover its benefits for medical devices, instruments, and packaging, and ensure safety and compliance.
UDI labeling for medical devices
Read on to learn basic knowledge of UDI, adoption advantages, and the corresponding marking methods. Identifying medical devices improves safety in the medical field, including in the distribution stage. This operational system was designed to make providing optimal treatment even easier.
Laser marking for 2D codes
Learn about the benefits of 2D codes and laser marking applications with Laser Marking Basics. KEYENCE CORP provides insight on laser principles, types, and marking techniques for maximizing information storage in limited space.
Laser marking vs dot peen marking machines: An overview of two Popular marking technologies
Discover the pros and cons of laser marking vs dot peen marking machines from our experts. Make an informed decision when selecting the factors that will help your business.
Carbon migration laser marking: Everything you need to know
KEYENCE's laser marking technology offers numerous benefits, including high-speed marking, customization, and exceptional quality. Laser marking is a non-contact process, meaning it does not damage the material, which results in clean and accurate markings. Our systems can handle complex shapes and patterns, making it an ideal solution for intricate designs and labeling.
Laser marking on die-cast components: An introduction to the process and materials involved
KEYENCE's laser marking technology and expertise in the field provides a reliable and efficient marking solution for die-cast components. Contact KEYENCE today to learn more about laser marking on die-cast components and how it can benefit your industry.
What Is Laser Texturing & How Is It Used?
Laser texturing is a revolutionary technology that is changing the way manufacturers create textures and patterns on various surfaces. At KEYENCE, we offer advanced laser texturing systems that deliver high-quality and precise textures on a wide range of materials, including metals, plastics, and ceramics.
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.
