Tjyag-505b Main function: engraving the everlasting 2d and 3d images inside the crystal or glass. Advantage: with big engraving range and it can engrave both big and small crystal blocks. Characteristic: it can be made with one or two or three laser heads. Others: it is a mature products with high steady capability. Technic specificatioin Item parameter Laser medium nd: yag Laser wavelength 532nm Highest frequency 200hz Maximum engraving range 280mmf-280mmf-90mm Engraving speed 6000-10000dots/min Power of the whole machine 4 kw Working current of the whole machine 20a Continuous working time 12hrs Laser head number 1 or 2 or 3 Weight of the whole machine 230kgs Weight of the whole machine 230kgs Packing:ply wood per unit