High precision turning machine for heavy workpieces up to Ø 500 mm and 300 kg in weight The Mikroturn 500 XL achieves a size and form accuracy of < 2 micron and a surface finish (Ra) of 0,1 - 0,4 micron in workpieces up to 70 HRC. Key features: -Hydrostatic main spindle with a 0.1 µm run-out. -Hydrostatic X- and Z-slide with a ± 0.1 µm repeatability -Rigid natural granite machine base with an integrated system of vibration dampers -Headstock housing of natural granite for improved static and dynamic stiffness and thermal stability -Sealed type direct linear slide measuring system -External hydraulic service unit. -Siemens 840D control with a 0.01 micron resolution