The sanitary PowerMix Model PD-100 is designed for use with products requiring a combination of slow- and high-speed agitation. The mixer combines a low-speed planetary stirrer with a conventional, high-speed disperser. Both agitators revolve on their own axis while 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.

Charles Ross & Son; 800-243-7077; www.mixers.com