... stone router wtih two spindles 1.double spindles high working efficiency 2. Japan servo motor and drive high quality cnc stone ... block, copper and so on.Technical Features of Dual-spindles Tile Engraving Machine This machine is very suitable for cutting and engraving 60*60cm ... at the same time. so it's very fast ,can save lots of timeOptional Machine Size:900mm*1500mm, 1000mm*1500mm, 1200mm*1800mm, ...