Laser marking systems – find manufacturers and suppliers

Laser marking systems

1. What is a laser marking system?

A laser marking system is a technology that uses a laser beam to create permanent markings on materials. These systems are used for industrial applications to mark products with serial numbers, barcodes, logos or other identification features.

2. How they work

Laser marking systems work by directing a focused laser beam onto the surface of a material. The energy of the laser changes the properties of the material, creating a visible or tactile mark. The type of marking depends on the type of laser, the wavelength and the material.

3. Types of laser marking

There are various methods for creating a marking with lasers:

• Tempering (Tempering Marking): A temperature-induced color change of the material, usually for metals such as stainless steel.
• Engraving (laser engraving): Material is removed by vaporization to leave a recessed mark.
• Ablation (laser ablation): A thin layer (e.g. paint, oxide layer) is removed to reveal the underlying material.
• Color change: Used on plastics to bring about a color change by altering the chemical structure.
• Foaming: Creates raised markings by foaming the material, especially with plastics.

4. Important components of a laser marking system

• Laser source: Determines the wavelength and power of the system. Common types are fiber lasers, CO₂ lasers and UV lasers.
• Scanner head: Contains mirrors that direct and precisely position the laser beam.
• Focusing unit: Concentrates the laser beam on the desired surface.
• Control unit: Software that generates patterns, texts or codes and controls the movement of the laser.
• Work surface: The area where the material is placed, often with a moving table or automated conveyor system.

5. Areas of application

Laser marking systems are used in many industries:

• Automotive industry: marking engine parts, chassis numbers.
• Medical technology: marking of surgical instruments with UDI codes.
• Electronics industry: marking of printed circuit boards, microchips.
• Packaging industry: exp iration dates and QR codes on plastic and glass packaging.
• Jewelry industry: Precise engravings on precious metals and watches.

6. Advantages of laser marking

• Durable markings: Withstands abrasion, chemicals and high temperatures.
• High precision: Markings are very fine and detailed.
• No consumables: Unlike inkjet printers or labels.
• Environmentally friendly: No ink or chemicals required.
• Fast and efficient: High marking speeds for industrial mass production.

7. Differences between laser marking, engraving and labeling

• Laser marking: Surface modification without material loss.
• Laser engraving: Deeper burn-in or removal of material.
• Laser marking: General term for any type of laser marking.

Laser marking systems are an essential technology for precise, durable and economical product marking.

Laser marking systems can be purchased from various suppliers. You will find comprehensive information on manufacturers and suppliers of Laser marking systems around the world on Exportpages.