... ProfileAluminum ProfileTransmissionX,Y,Z StructureX.Y Rack,Z Ball ScrewSpeedMax. Motion Speed20000mm/minMax. Process Speed10000mm/minSpindlePower4.5KwSpeed6000-24000RPMDrive System StepperVoltage AC380V ... Heav-duty, Stable operation, High precision, Long lifetime.The whole machine is made of welding steel, high stiffness, the back table ... so on can be engraved to 5mm each time stone engraving machine