The insulated, high capacity centrifugal screener features an insulated jacket that maintains the temperature of hot or cold materials being sifted, while keeping the machine''s exterior skin closer to room temperature for personnel safety. It also offers a three-bearing shaft that cantilevers for rapid removal of internal components. External roller bearings are located at the motor end of the shaft and on a sliding cover at the discharge end for maximum support and vibration-free operation. When the end cover is slid open, the shaft becomes a cantilever supported by a third externally-mounted roller bearing located between the motor-end bearing and material feed point, allowing internal components to slide freely from the opposite shaft end. The unit is equipped with clean-in-place spray balls for rapid sanitizing using steam or cleaning solution without removal of internal components. In addition to sifting and scalping of dry bulk materials, the screener can break up soft agglomerates and/or dewater moist solids or slurries. The screener is constructed of stainless steel finished to industrial, 3-A, FDA, BISSC, and other sanitary standards.