Abstract: A rotary atomizer includes a generally circular integrated fan/cone assembly coupled to an hydraulic motor to effect the rotation thereof. The hydraulic motor is positioned upon and extends through a generally circular fixed shroud which is downwardly divergent and includes a center hub with air intake apertures. The integrated fan/cone assembly is positioned immediately below and within the shroud and further includes a disc-shaped base on the upper surface of which are disposed a plurality of spaced curvilinear blades and within the center portion thereof is located a truncated cone having an upper center hub and a plurality of spaced radial grooves around the lower inner surface thereof. Each of the grooves is defined by a pair of spaced, tapered ribs each of which, in turn, terminates in a respective generally rectangular tooth which extends downward from and beyond the lower lip of the cone.