Charles Ross & Son Co. has announced the development of its Model CDA 100 Dual Shaft Mixer and Discharge System for use in the production of viscous, non-flowing products. The Dual Shaft Mixer combines a three-wing anchor with Teflon scrapers and a conventional, disc-type, high-speed disperser. Each of the agitators is independently driven and set up for variable speed operation. The mixer also includes a vacuum cover with sight/charge ports and two vacuum and jacketed mix vessels with discharge valves in the bottom. This system is available in many sizes, from a 1-gal laboratory unit to a 1,000-gal production model.