The invention relates to a washing device for elongate profile sections (7) which have been cut to length, comprising a drum (5, 6) which is rotatable about a horizontally oriented axis of rotation (3, 4), said drum having a plurality of receiving areas (8, 9) which are arranged next to one another along the circumference of the drum and into which elongate profile sections (7) oriented along the longitudinal direction (L) can be inserted, comprising a receiving opening (11) for the elongate profile sections (7) and a discharge opening (12) for the elongate profile sections (7) and an upper transport path (To) for the elongate profile sections (7), said upper transport path running between the receiving opening (11) and the discharge opening (12), wherein the upper transport path (To) passes the axis of rotation (3, 4) on the side thereof facing away from the ground, wherein an opening width of the discharge opening (12) is adjustable in the circumferential direction.