We promise your purchase of any one of our laser machines are covered by the machine warranty 2 years, 6 months and replacement laser tube (human reason can not be maintained), have any questions you can contact our sales department, we would be the first a time to help you determine where the problem is, and then allowing you to which parts have express mail over the inside (accessories are Plug and Play ???? use, it is easy to win), we repaired the same day, to return as soon as possible, and must do not waste your valuable time to make a fortune, we machine failure rate is very low, Walter Fernandez Laser Equipment Co., Ltd. is the earlier laser machine on product development, parts manufacturing, technology upgrade all aspects of technology-based companies, which are produced products allow customers to achieve a 100 percent satisfaction, your satisfaction is our aim, to customers after the warranty period, we carried out maintenance cost, and let you worry-free D-40L30 * 20 laser engraving machine (Customer Service Q: 277 -377-9152) Laser Brand: Wall Fernandez Institute Class A standard laser tube CO2 laser power: 40W Laser Power Supply:? from research one of the power supply power: 220V / 50W motherboard models: Walter Fernandes 2015 WOERDESIGOLD gold board software : Walter Fernandez coreldraw direct output software / Divine Easy engraved / winsealxp15f carving format: 200 * 300mm Engraving speed: 100-1000mm / min resolution accuracy: 0.01mm Minimum shaping character: Character: 2mm letter: 1.2mm Power supply: 220V / 50W supports image formats: AI, BMP, PLT Power supply: 220v / 50HZ Total Power: 350W Dimensions: 800 * 500 * 300mm consultation: 131-7616-2819 Online: 277-377-9152 pay attention to stone engraving machine function, engraving machine carving motor has high power and low power of the points. Some engraving machine is only suitable for smaller power processing color plates, building models, small signs, three-dimensional crafts and other materials, this process has been popular for some time, but because of carving power is too small and greatly affect its scope of application. Another high-power engraving head engraving machine, engraving machine that has divided into two categories, one is large format cutting machine: format is generally more than one meter, but the accuracy of this engraving machine generally poor; another classes are moderate engraving machine format: This engraving machines generally used in fine processing and organic label production.