Laser Engraving Machine For Sale
In the production of industrial gravure printing plates, a wide surface area requires a high spatial resolution. The rapid workflow cycle of printing rollers requires effective engraving of an area of several square meters with micron-level accuracy in a short period of time. The application of Laser Engraving Machine For Sale in this field has the following characteristics: high processing rate, precise focusing and the advantages of digital modulation. Due to increased precision, repeatability, flexibility, and productivity, direct laser microstructuring is replacing traditional gravure platemaking techniques (such as mechanical engraving with diamond pens or chemical etching).
Rotary gravure printing plates consist of a uniform copper or galvanized steel roller. The image information is engraved into tiny cells in copper or galvanized layers to transfer the ink to the substrate. A thin layer of chrome ensures a long service life of the printer under severe grinding conditions. By using a doctor blade, it is possible to ensure that only the ink amount determined by the cell size is delivered. The gravure printing cylinder is 0.3-4.4 meters long, the circumference is 0.3-2.2 meters, and the surface area can reach 10 square meters. When the screen resolution is 60-400 lines / cm, the number of cells on the drum is usually 108 to 1010. In order to do image processing in the most economical time, Laser Engraver is required to have high pulse repetition rate and high average power.