An inlet head housing for an axial separating device includes a pair of separating rotors arranged parallel to one another having a first end protruding, in sections, into the inlet head housing. The inlet head housing also includes flat inlet sections extending along a width of each of the respective separating rotors and a ramp-shaped housing section having a substantially concave profile is arranged between the flat inlet sections. The housing section at least partially supports a separation of a crop flow into two partial flows to the separating rotors and a substantially blade-shaped separating element is arranged on the ramp-shaped housing section and extends substantially axially parallel thereto.