an electrostatic rotary atomizer apparatus includes a housing encasing a turbine assembly , a shaping air assembly disposed radially outwardly from the turbine assembly for fluid communication with a shaping air supply , and a charge ring mounted to the housing and adapted to be connected to an electrical power supply . the charge ring has a plurality of electrodes within the housing . ions emitted by the charge ring are directed through shaping air passages to intersect paint droplets leaving a rotating bell cup .