The first point that the ultraviolet laser marking machine is more expensive is the high price of accessories. Compared with the fiber laser marking machine, the ultraviolet laser marking machine composed of laser, galvanometer and control card has no difference in structure. However, the optical components of the two types of laser marking machines are different. The wavelength of the ultraviolet laser marking machine is 355 nanometers, while the wavelength of the fiber laser marking machine is 1064 nanometers. The difference between them is relatively large. The technical level of ultraviolet lasers is higher, which is expanded through professional technology based on the wavelength of fiber lasers, so the technical level of ultraviolet lasers is higher. At the same time, the ultraviolet laser is also highly stable, and the galvanometer and lens materials in the accessories are also very special. Different from other types of laser marking machines, the thickness and material are special accessories and cannot be shared with other accessories, so the price is higher. The ultraviolet laser marking machine has high requirements on the environment, especially the water-cooled laser in the accessory, which can only be used normally at a certain normal temperature. At the same time, the UV laser marking machine has no advantage in stability and requires a lot of labor costs, including after-sales guidance and so on. The price of UV laser marking machines on the market is determined by the value, and the value changes with the market. At present, with the development of science and technology in our country, the price of UV laser marking machines has gradually decreased, especially in the early years when we relied solely on foreign imports, it even cost hundreds of thousands to buy. Now imported top-level accessories such as ultraviolet lasers can be purchased for only tens of thousands of yuan.