Method for operating rotary atomizer, spray head, and the rotary atomizer with the spray head

The invention relates to a method for operating a rotary atomizer with which a coating material is applied onto an object. A bell plate (8) is rotated about a rotational axis (18), and the coating material is supplied to a discharge surface (34) of the bell plate (8) such that the coating material is projected away from the bell plate (8). A working fluid is blown at least temporarily as a transonic or supersonic flow onto the coating material coming from the bell plate (8) by means of a dispensing device (70). Furthermore, the invention relates to a spray head for a rotary atomizer is provided for applying a coating material to an object. The spray head comprises the bell plate (8) capable of rotating about a rotational axis (18) and comprising a discharge surface (34), wherein the coating material can be supplied to the discharge surface such that the coating material is projected away from the bell plate (8). The dispensing device (70) is provided and can blow a working fluid at least temporarily as a transonic or supersonic flow onto the coating material coming from the bell plate (8). The invention further relates to the rotary atomizer with the spray head.