Charles Ross & Son Co. manufactures a full range of high-speed dispersers suitable for high-volume mixing in vessels up to 6,000 gallons or larger. These production-scale dispersers are either tank-mounted or supplied with an air/oil hydraulic lift. In the latter configuration, a height limit switch enables the mixer to operate from the fully down position to a safe raised height, allowing the operator to adjust blade position as necessary to eliminate any potential stratification within a large batch as well as agitate smaller liquid volumes during the initial stages of mixing. Used for wetting out powders, creating a uniform suspension and general liquid-liquid mixing, the classic saw-tooth open disc blade of the high-speed disperser turns at tip speeds up to around 5000 ft./min. Satisfactory flow patterns and rapid turnovers are achieved in dispersions and solutions with a viscosity of >50,000 centipoise.