... cnc router 2. 5.5kw water-cooled spindle 3.500mm rotary axis 4.Hiwin linear square guideway 5.DSP offline Stone CNC Engraving Machine ... sphere, stainless steel, iron, copper, aluminium, titanium alloy, can doing 3D embossment, and line engraving, bevelling, drilling 2D ... etc on stone,glass, depth can control optionally, to reach the artistic effect .Machine features1.High temperature tempering treatment ...