The Insulated HE (High-Efficiency) Series Cyclones serve as primary receivers in dilute phase pneumatic conveying systems where conventional filter receivers might get plugged or overburdened by large airborne solids conveyed at extreme temperatures. Insulated units feature 3 inches of specialty insulation, plus an additional layer of steel. The unit features a proprietary interior design and operates without any filter media to clean, replace, or maintain. The units can separate hot, cold, moist, and large particles. Individual models handle moist material from ovens or coolers in high volumes and feature involute inlets that run 180 degrees around the unit's circumference to maximize cyclonic separation. The Cyclone hopper cone features an bolted inspection door. The standard hopper slope is 75º to ensure proper particle flow. Units can be custom built to meet the users’ needs.