The laser marking machine uses a laser beam to mark the surfaces of various substances permanently. The effect of marking is to expose deep matter through the evaporation of surface matter, so as to carve out exquisite patterns, trademarks and words.

  Laser marking machines are mainly divided into CO2 laser marking machines, semiconductor laser marking machines, optical fiber laser marking machines and YAG laser marking machines. At present, laser marking machines are mainly used in some occasions with finer requirements and higher accuracy. Used in electronic components, integrated circuits (IC), electrical appliances, mobile phone communications, hardware, tool accessories, precision instruments, glasses, watches, jewelry, auto parts, plastic keys, building materials, PVC pipes.

   CO2 laser marking machine commonly used laser tube glass tube and RF tube, the difference between the two is:

  1. laser tube: CO2 RF tube laser marking machine adopts imported laser tube, while glass tube adopts domestic laser tube.

  2. service life: CO2 RF tube laser marking machine life can reach more than 45000 hours, generally can be used for 6 years, inflatable can be reused, do not need to replace; and glass tube marking machine is only about 2500 hours, generally half a year to replace a glass tube, not reusable, to be replaced.

  3. cooling mode: CO2 RF tube laser marking machine with air cooling, can ensure long-term stable operation without fault; CO2 glass tube laser marking machine with water cooling, long working time or high water temperature may not light or intermittent light, Continuous work has a great impact on the quality of products.

  4. spot size (beam): CO2 RF tube laser marking machine is 0.07 mm spot fine, more than 3 times more fine than glass tube, high precision, small thermal diffusion area, can carve / cut very fine works; CO2 glass tube laser marking machine is 0.  25 mm The spot is thick, the precision is poor, the output light is unstable (the light intensity is uneven, sometimes does not produce the light), the heat diffusion area is large, the cutting edge melts, the blackening is obvious, the engraving precision is poor.

  5. stability: RF tube is a fully sealed metal tube, using 30 volts low voltage power supply, which directly avoids some drawbacks caused by the use of high voltage power supply; Because domestic glass tube laser cutting machine uses 10,000 volts or higher high voltage power supply, in addition to instability, the power supply is easy to aging and has great interference to the control system.

  6. price: RF tube is much more expensive than glass tube, and for some products such as leather, only glass tube can be fully competent. So according to their own needs to choose different marking machine is the last word.