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The difference between CO2, UV, fiber laser marking machine!

Laser marking machines can realize surface marking of products made of different materials. Special laser products can realize processes such as stainless steel coloring and alumina blackening. Common laser marking machines on the market now include CO2 laser marking machines, fiber laser marking machines and UV laser marking machines. The main differences between the three laser marking machines are the lasers, laser wavelengths and application fields. Different laser marking machines are used for marking different materials and process requirements.

Fiber laser marking machine

Optical Fiber Laser Marking Machine uses fiber laser to hit the laser beam on the surface of various materials, using light energy to cause physical or chemical changes in the surface material, thereby carving out patterns, trademarks, text, etc. Marking equipment for permanent marking. Its components include: fiber laser, laser galvanometer, field mirror, industrial computer, display, cabinet, control switch, power supply, ruler and lifting axis, etc. MOPA laser marking machine also belongs to the type of fiber laser marking machine.

CO2 laser marking machine

The CO2 Laser Marking Machine uses a gas laser with an infrared light band of 10.64 μm. It fills the CO2 gas into a high-voltage discharge tube to generate a glow discharge, causing the gas molecules to release the laser. After amplifying the laser energy, a pair of objects is formed. Material processing laser beam, the laser beam vaporizes the surface of the workpiece to achieve the purpose of engraving.

UV laser marking machine

UV Laser Marking Machine uses a 355nm ultraviolet laser to hit the laser beam on the surface of various materials, directly breaking the molecular chains of the material through short-wavelength laser, thereby carving out patterns, trademarks and text, etc. Marking equipment for permanent marking.


1. Different lasers: fiber laser marking machines use fiber lasers, carbon dioxide laser marking machines use CO2 gas lasers, and ultraviolet laser marking machines use short-wavelength ultraviolet lasers.

Ultraviolet laser is a technology that is completely different from carbon dioxide and fiber laser technology. Ultraviolet laser is also called a blue laser beam. This technology has low-heat engraving capabilities. It does not heat materials like fiber and carbon dioxide laser marking machines. The surface is cold light engraving.

2. The laser wavelengths are different: the laser wavelength of the fiber marking machine is 1064nm, the laser wavelength of the carbon dioxide laser marking machine is 10.64μm, and the laser wavelength of the ultraviolet laser marking machine is 355nm.

3. Different application fields: CO2 laser marking machine is suitable for engraving most non-metal materials and some metal products, fiber laser marking machine is suitable for engraving most metal materials and some non-metal materials, and UV laser marking machine can Clearly label all plastics and other materials that react adversely to heat.