Rota-Cone® Vacuum Dryers are one of the most energy efficient, gentle and cost effective methods for drying solids to very low moisture levels. Because of the reduced vaporization temperatures possible under vacuum, Rota-Cone® Vacuum Dryers are ideal for drying heat-sensitive products including food ingredients and pharmaceuticals. Rota-Cone® Vacuum Dryers are also ideal for developing the deep vacuum and temperatures necessary for solid-state polymerization of polyethylene terephthalate (PET) and polybutylene terephthalate (PBT). Dryers capable of temperatures up to 600°F are possible for drying or reacting applications. The clean double-cone or V-vessel shape provide gentle unobstructed tumbling of the solids and complete discharge with minimal hang up points. Vacuum leakage is minimized because there is only one seal on the vacuum line. The open design makes both visual inspection and CIP simple. Rota-Cone Dryers are also rugged enough to blend and dry powdered metals with bulk densities up to 300 pounds per cubic foot. Horizontal Rotary Vacuum Dryers extend the range of drying applications by starting with slurries or pastes.