An arrangement for depositing coating powder on a rotational symmetric body is provided. The arrangement includes a rotation device for rotating the rotational symmetric body around a horizontal axis of rotation, wherein the horizontal axis of rotation coincides with the axis of the rotational symmetry of the body, a nozzle arranged vertically above a surface of the rotational symmetric body for providing the coating powder to the surface and a horizontal barrier at a specified distance defining a coating thickness above the surface, wherein the barrier is arranged next to the nozzle in the direction of a rotational movement of the surface at the nozzle. At this point, the nozzle includes a cross section elongated in one direction parallel to the axis of rotation.