How to choose laser marking machine?

Look at the marking materials

According to different lasers, laser marking machines can be divided into: fiber laser marking machine, CO2 laser marking machine and UV laser marking machine. Different workpiece materials, different laser marking machines, different wavelengths and powers, and different materials suitable for marking.

The laser wavelength of optical fiber laser marking machine is 1064nm, which is suitable for most metal materials and some non-metallic materials, cloth, leather, glass, paper, polymer materials, electronics, hardware, jewelry, tobacco, etc. The power of optical fiber laser marking machine is 20W, 30W, 50W, 70W, 100W, 120W, etc. for general materials, 20W can produce exquisite effects. For some materials that need marking depth, 30W needs to be used for proofing first. For some materials, 20W power can only be used to achieve satisfactory results, but 30W power can't. Some materials can only use 30W power to produce the desired effect, but can't use 20W. If it is necessary to complete deep engraving tasks efficiently, such as deep engraving of frame number, engine body code, metal nameplate, carbon steel oil pipe mark, etc. MOPA laser can be selected.

The laser wavelength of CO2 laser marking machine is 10.6 μ m. It is suitable for most non-metallic materials, such as paper, leather, wood, plastic, plexiglass, cloth, acrylic, wood bamboo, rubber, crystal, jade, ceramics, glass and artificial stone. The power of CO2 laser marking machine is 10W, 30W, 50W, 60W, 100, 150W, 275W, etc. generally, the power selection of CO2 should be determined according to the effect demand and product material of the marking product. At this time, it is recommended to consult the marking machine manufacturer first, and then the proofing and testing machine. Generally, the marking machine manufacturer can arrange free proofing and testing machine, and can recommend a suitable one for you.

The laser wavelength of UV laser marking machine is 355nm. It is mainly used for ultra-fine marking and engraving. It is especially suitable for marking food, pharmaceutical packaging materials, microporous, high-speed division of glass materials and complex graphic cutting of silicon wafers. It is usually black with white or transparent plastics. The power of UV laser marking machine is 3W, 5W, 10W, 15W, etc. the higher the power, the higher the price. 3w-5w is widely used in industry at present, especially their price is moderate and can meet most of the processing and marking requirements. However, the price of 10w-15w is too expensive, which is mainly used in cutting and drilling with high precision.

Look at the size of the processed workpiece

After knowing the marking materials, select the corresponding marking machine type, and then select the appropriate machine format according to the product size to be processed. For the selection of the size of the laser marking machine, the larger the machine size, the better. On the one hand, large format equipment is certainly more expensive. On the other hand, the average laser output of some poor quality machinery and equipment at various points on the large format is unstable, resulting in different depths of marking products on the same table. Therefore, it is correct to choose the most appropriate format.

See specific process requirements

Even laser marking can be subdivided into plane marking, three-dimensional marking, fixed marking, flying marking, marking and scribing and other more specific processing processes. Before purchasing equipment, users must inform the marking machine supplier of their detailed requirements, so as to select the most appropriate equipment.

See supplier qualification

When choosing laser marking machine, many people often focus on the contract and price, thus ignoring some qualification problems of suppliers, which is easy to leave unnecessary trouble for future work. When selecting a laser equipment supplier, it is best to investigate the other party in many aspects, such as whether the company has relevant licenses, whether the laser equipment has qualification certificates, whether the engineers have qualification certificates, etc.

Look at the supplier's service

With the increasingly fierce competition in the laser industry, customers should not only pay attention to the product quality and enterprise qualification, but also understand the services provided by the laser marking machine company in detail. You can refer to the reputation of market users and the after-sales service quality of manufacturers.