A tablet compressing machine and a process for cleaning a tablet compressing machine with a rotor unit, in which an actuator is provided for the purpose of tilting a sealed housing of the tablet compressing machine, in which the rotor unit, a rinsing unit and the powder supply are disposed, so that the cleaning liquid may drain off horizontal surfaces in the sealed housing. The process therefore comprises the steps of distributing the cleaning liquid, tilting the tablet compressing machine and discharging the cleaning liquid. Retrofitting of existing tablet compressing machines is possible.