The invention relates to a milk separation device of a milking system for milking, in particular automated milking, of milk-producing animals. The milk separation device comprises a body, which has an inlet connection and an outlet connection, and a cover, which has a connection to a vacuum line. The body has an inwardly protruding balcony segment on an inner periphery, wherein the balcony segment forms a ramp helically in the peripheral direction so as to rise at a pitch angle with respect to the gravitational force of the earth.