Why are UV laser marking machines so much more expensive than fiber laser marking machines?
UV laser marking machines are better than fiber laser marking machines for some special materials, such as ABS, PP, UV, etc. So why is this?
The main reason is that the light waves of ultraviolet and optical fiber are different. The wavelength of ultraviolet is 355MM, which is short wave.
One of the characteristics of short wave is that it does not produce too much thermal effect on the material. The wavelength of the fiber laser marking machine is 1064NM, which is infrared light at noon and is prone to high temperatures. If there are materials that are sensitive to heat, they will feel burned. However, the fiber laser marking machine on metal will not produce much change on the metal surface. The application of ultraviolet laser marking machines in metal materials is relatively small. Nowadays, fiber laser marking machines are the mainstream of the market in marking metal materials. The main reason is that the price of ultraviolet laser marking machines is too expensive and the power is also relatively low (currently mainly 3W and 5W). If the UV laser marking machine can reach 10w-20w, then it will not be a problem to mark any material. Moreover, the radiation of ultraviolet light waves is relatively large, while the radiation of optical fiber is much smaller, so the radiation of optical fiber is much smaller are more easily accepted by customers.
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