The compact grinding and polishing robot Qpol 250 BOT is perfectly suited for automation in the metallographic laboratory as it binds together several meters of standard equipment for grinding and polishing in one machine, e. g. changer with stack for 16 grinding and polishing media, integrated dosing unit and settling tank. The grinding and polishing process is automated by intuitive touch-screen controls. Easy manual loosening and tightening of sample holder for central pressure simplifies the preparation process. Grinding or polishing media is automatically changed and all parameters can be adjusted directly during the process. The semi-covered working space with large panel and light-barrier provide a high safety standard.