When ultra-fine marking, the choice of laser marking machine should focus on the following aspects:

  1. laser type: UV laser marking machine: UV laser marking machine is mainly used for ultra-fine marking, engraving, especially suitable for food, pharmaceutical packaging materials marking, playing micro-hole, high-speed division of glass materials and complex graphic cutting of silicon wafers. The laser wavelength of UV laser marking machine is 355nm, which has high energy density and small heat-affected zone, so it can achieve high-precision marking effect.
  2. Power and wavelength: For ultra-fine marking, you need to choose the appropriate power of the laser marking machine. Too much power will lead to increased heat-affected zone, affecting the marking accuracy; too little power may not be able to meet the marking requirements. Wavelength is also an important factor affecting the marking effect. The wavelength of the ultraviolet laser marking machine is shorter, and it can achieve finer marking effect.
  3. Marking range and speed: According to the actual production needs, choose the laser marking machine with appropriate marking range and speed. Marking range is determined by the field mirror, and marking speed by the product material density, marking depth, marking width size and other factors.
  4. Brand and after-sales service: Choose a well-known brand of laser marking machine to ensure the quality and stability of the equipment. At the same time, good after-sales service can deal with equipment failure in a timely manner to reduce the production risk.
  5. Other considerations: According to the production environment, budget and other actual conditions, comprehensively consider the configuration of the laser marking machine, price and other factors, and choose the most cost-effective equipment.

In summary, for ultra-fine marking, it is recommended to choose ultraviolet laser marking machine, and according to the actual production needs to choose the appropriate power, wavelength, marking range and speed. At the same time, choose well-known brands and equipment with good after-sales service to ensure production efficiency and product quality.