The fluidizer pads are typically operated by pulsing the air on and off. The actual SCFM is calculated by multiplying the Pulse “On” Time in Seconds by the air flow at the supply pressure times the number of pads utilized. A typical example would be that of a hopper requiring (4) pads with an on time of 2 seconds and an off time of 10 seconds at a supply pressure of 30 PSIG. This scenario would result in a total SCFM requirement of 13.4 SCFM. {60 Seconds/12 Seconds, total cycle time = 5 cycles per minute; 5 cycles per minute x 0.67 (air flow at 30 PSIG) x 4 fluidizer pads}. The actual number of pads and the on/off time is dependent upon the application.