a corresponding drum 10 construction makes possible a large bandwidth for controlling the skimmed milk outflow pressure a centripetal pump 17 is used for discharging the skimmed milk mm and a centric collecting pipe 18 in the axis of rotation r is used for discharging the cream ra the larger the diameter difference between the regulating disk 14 and overflow edge on the gripper cover 15 the more the separation zone 20 can be changed by a sudden closing of the skimmed milk control valve 4 and the cream ra can be pushed out with more pressure in another embodiment of a control and of a method for preventing a clogging of the separator drum 10 in a manner of an antilock system an u201c antilock control u201d takes place by an increase of the inflow rate of the cold milk km and a resulting pushing out of the cream ra when the limit value of a cream fat content of 43 is exceeded the inflow rate is for example abruptly increased by at least 5 000 l h as a result the cream ra is diluted by approximately 10 and as a result of a liquid level shift in the drum 10 the cream ra is in turn pushed out of the drum 10 according to the method of the present disclosure an operation can take place with a previously fixedly adjusted cream concentration of for example 40 the adjustment of the cream concentration takes place by regulating disk 14 which is independent of the skimmed milk outflow pressure purely via the inflow rate a controlling via the inflow rate is permissible when processing cold milk km when no.