Laser marking: precision, durability and efficiency in modern labelling technology

What is laser marking?

Laser marking is a non-contact process for permanently labelling materials using a laser beam. It is used in numerous industries to apply information such as serial numbers, barcodes, logos or technical data to workpieces and products. Laser marking offers a number of advantages over processes such as inkjet printing or engraving: Durability, maximum precision, environmental friendliness and flexibility.

Laser marking is a pioneering technology that combines efficiency, precision and sustainability. Thanks to its versatility and durability, it has become an indispensable part of modern production processes. Especially in times of Industry 4.0 and digital traceability, it is becoming a key technology for quality assurance and product customisation.

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Advantages of laser marking

High precision

Thanks to the fine focussing of the laser beam, even the smallest details can be displayed in razor-sharp detail. This is particularly important for QR codes or micro-markings in electronics and medical technology.

Durable labelling

Laser markings are smudge, scratch and heat resistant. They withstand even extreme conditions, such as high temperatures, UV radiation or aggressive chemicals.

Non-contact process

Laser marking is contactless, so there is no mechanical wear or pressure on the material. This protects sensitive workpieces and reduces downtime.

Environmentally friendly

Unlike the ink or etching process, no consumables or chemical residues are produced. This makes laser marking a particularly sustainable marking technology.

High flexibility

Whether metal, plastic, glass, ceramic or wood - modern laser systems can mark almost any material. Both large series and individual items can be processed economically.

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Laser marking processes at a glance

There are various processes that can be used depending on the material and the desired marking result:

1. laser engraving

Material is removed by the laser beam. The engraving can be felt and is particularly durable.

2. laser marking (annealing marking)

Metal surfaces are discoloured by heat without any material being removed - ideal for corrosion-free markings, e.g. on stainless steel.

3. foaming and foaming process

Plastics are foamed at certain points to create a bright and high-contrast marking.

4. carbonisation

In the case of organic materials, carbon is released through the effect of heat, resulting in dark markings.

5. colour change

Single-colour plastics or paints change colour under the influence of the laser without removing material - ideal for high-contrast, smooth markings.

Choosing the right laser type for laser marking

The choice of laser type depends on the material to be processed and the desired marking result. Common laser systems:

• Fibre laser (fibre laser): Particularly suitable for metals, durable and energy-efficient.
• CO2 laser: Ideal for organic materials such as wood, glass or plastics.
• UV laser: For sensitive materials and microstructuring.
• Green laser: Often used for copper or reflective metals.

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What should be considered when buying a laser marking system?

Anyone looking to purchase a laser marking system should consider the following criteria:

• Material compatibility
• Laser power (wattage)
• Type and speed of marking
• Software compatibility
• Safety precautions
• Service and support from the provider

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Frequently askes questions on laser marking

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Professional laser marking systems

In addition to our extensive range of TIJ marking systems and hand printers, we are also a distributor for professional laser marking systems from Chinese manufacturers.

Discover the future of industrial marking with our laser marking systems. The state-of-the-art solutions guarantee razor-sharp markings - permanent, contactless and with maximum efficiency. Whether metal, plastic or glass - our products stand for uncompromising quality, maximum reliability and intuitive operation.