RAM X tri-lobe rotary blowers are heavy-duty units with high strength integral-shaft ductile iron impellers designed for maximum efficiency. The blowers feature ROOTS WHISPAIR discharge design which, when combined with tri-lobe impellers, delivers quieter operation than conventional tri-lobe blowers. The headplates and rigid, one-piece cylinders are cast iron, and the drive-end and gear covers are aluminum (cast iron for models 600-1000). Carburized and ground alloy steel spur timing gears are taper mounted on the shafts and are secured with a locknut (bolt for models 800-1000). Cylindrical roller bearings are used to accept side loads from v-belt drives. Piston rings reduce air leakage through the shaft openings in the headplates and hydrodynamic oil seals prevent lubricant from entering the air chamber.

RAM X blowers incorporate thrust control, with splash oil lubrication at both ends of the blower. All model sizes are designed with detachable rugged steel mounting feet which permit in-field adaptability to either vertical or horizontal installation requirements. The top shaft is adaptable for drive on side outlet blowers, and either shaft can be extended for drive on top or bottom outlet blowers.