This Dual-Shaft VersaMix design from Charles Ross and Son incorporates a helical agitator and high-speed dispersion blade. The combination of agitators provides improved axial and radial turnover of the materials mixed, as well as high shear of the product, says the company. This combination is useful for viscous materials that have poor flow qualities, the addition of powders that have a tendency to float on the surface and heat transfer of batch constituents. The helical agitator is designed for bi-directional operation, and Teflon scraper assemblies are attached to the outside of the agitator to facilitate scraping of the sides and bottom of the vessel.

Charles Ross and Son Co.;