A guiding air ring for a rotary atomiser for coating components, such as motor vehicle body parts, is disclosed. The ring generally includes a front side facing a bell plate of the rotary atomiser in the operating state, and at least one guiding air nozzle for outputting a guiding air flow for forming a directed spray emitted from the bell plate. The ring may also include a cavity which is rotationally arranged in the front side of the guiding air ring in an annular manner. A correspondingly adapted bell plate is also disclosed.