Ross recently introduced a Sanitary PowerMix, Model PD-100, for the development of viscous products requiring a combination of slow- and high-speed agitation. The patented mixer combines a low-speed planetary stirrer with a conventional high-speed disperser. Both agitators revolve on their own axis while at the same time on a common axis. The high-speed blade provides an internal shearing action, while the planetary stirrer continually moves material into the high-speed blade. The action of the planetary blade also removes material from the tank wall to ensure good heat transfer during the mixing process. The unit shown is constructed of stainless steel to enable easy cleaning between batches. The PowerMix is available in many sizes from 0.5 to 750 gal working capacity. Vacuum design, a selection of construction materials, complete control systems, wall scrapers, sanitary designs, etc., are available. Phone (800) 243-ROSS (7677);