The structure of UV laser marking machine is the same as that of fiber laser marking machine. It is composed of ultraviolet laser, galvanometer, lens, industrial control machine, control card, workbench shell, electrical control equipment, power supply, red light, foot pedal, combined surgery mirror and other original components.
So why is the price of UV laser marking machine several times that of fiber laser marking machine?
The optics of fiber laser marking machine and UV laser marking machine cannot be universal.
The wavelength of the UV laser is 355nm, and the wavelength of the fiber laser is 1064nm. The wavelength of ultraviolet laser is the wavelength after frequency doubling on the basis of the wavelength of 1064nm. The technical difficulty is even greater, resulting in the price of UV laser several times more than fiber laser.
Compared with fiber laser marking machine, the thickness and material of the galvanometer and lens of ultraviolet laser marking machine are different, so they cannot be used universally. The galvanometer and lens of UV laser marking machine are also more expensive. Of course, the price of conventional galvanometers and lenses on the market is not much different, and the main price difference is in the UV laser and fiber laser.
On the other hand, UV laser marking machines have relatively high environmental requirements. Especially water-cooled lasers need to maintain a constant temperature, so the requirements for accessories are higher.
Due to the small focusing spot and the small processing heat affected zone, UV laser can perform ultra-fine marking and special material marking. It is the primary choice for customers who have high requirements for marking effects. In addition to copper materials, UV lasers are more suitable for processing. Not only the beam quality is good, the focusing spot is small, and ultra-fine marking can be realized; the scope of application is wider; the heat-affected area is small, no heat effect, and no material burning problem.
In general, the price of UV laser marking machine is relatively high, which is mainly reflected in the high cost of UV laser and the high labor cost in the later stage.