A rotary tablet press comprising: • a rotary drivable rotor, which comprises a die table with die bores and upper and lower punches (18, 20), associated to the die bores and circulating synchronously with the die table, whose axial movement is controlled by upper and lower control cams (30, 32), • at least one filling station with at least one filling device for filling the die bores with the material to be compacted, • at least one pressing station (42, 44), consecutive to the filling station in the sense of rotation of the rotor and having at least one pressing device (46, 48, 50, 52), which pushes the upper and/or the lower punches (18, 20) into the die bores when they pass the pressing station (42, 44), in order to compact the material filled into the bores, wherein the pressing station (42, 44) comprises a pre-pressing station with an upper and a lower pre-pressing roller (46, 48) and a main pressing station with an upper and a lower main pressing roller (50, 52), and • at least one ejection station, consecutive to the pressing station (42, 44) in the sense of rotation of the rotor and having a ejecting device for ejecting the tablets compacted in the die bores, • characterised in that in the circulating direction of the upper and lower punches (18, 20), at least one vibration generator (65, 66) is arranged on the upper and/or the lower pre-pressing roller of the pre-pressing station and/or the upper and/or the lower main pressing roller of the main pressing station, which imparts vibrations to the upper and/or lower punches (18, 20) in the pre-pressing station and/or in the main pressing station at least from time to time. • a rotary drivable rotor, which comprises a die table with die bores and upper and lower punches (18, 20), associated to the die bores and circulating synchronously with the die table, whose axial movement is controlled by upper and lower control cams (30, 32), • at least one filling station with at least one filling device for filling the die bores with the material to be compacted, • at least one pressing station (42, 44), consecutive to the filling station in the sense of rotation of the rotor and having at least one pressing device (46, 48, 50, 52), which pushes the upper and/or the lower punches (18, 20) into the die bores when they pass the pressing station (42, 44), in order to compact the material filled into the bores, wherein the pressing station (42, 44) comprises a pre-pressing station with an upper and a lower pre-pressing roller (46, 48) and a main pressing station with an upper and a lower main pressing roller (50, 52), and • at least one ejection station, consecutive to the pressing station (42, 44) in the sense of rotation of the rotor and having a ejecting device for ejecting the tablets compacted in the die bores, • characterised in that in the circulating direction of the upper and lower punches (18, 20), at least one vibration generator (65, 66) is arranged on the upper and/or the lower pre-pressing roller of the pre-pressing station and/or the upper and/or the lower main pressing roller of the main pressing station, which imparts vibrations to the upper and/or lower punches (18, 20) in the pre-pressing station and/or in the main pressing station at least from time to time.