Automatic 3 Dimension Stone Pillar / Monuments Engraving / Carving Machine. Spindle 4.5 Kw / 6 Kw. ( RPM 6000 – 24000 ) Spindle Air Cooled ( HSD Italy ) / Water Cooled Spindle. Spindle RPM can be variable with A.C.Drive. High Precision & Heavy Linear Guide. High Precision Rack & Pinion, and Ball Screw for X,Y & Z Transmission. Servo / Stepper Motors & Drives for X,Y & Z axis. Controller : Mach 3 Auto Function CNC Penal. Cast Iron Trolley & Track for loading Heavy Stone. Lubricating System. Water Circulating System. Heavy & Rigid Structure for fast & vibration free work.