Utilizing vibration and upward airflow to separate and fluidize individual particles, the Kason Vibro-Bed circular double-deck fluid bed processor system does not require heavy steel side walls or cross braces to withstand extensive vibration, and includes only one air inlet and one outlet. Eight models are available in diameters from 18 to 84 in., with optional centrifugal screeners to de-agglomerate moist incoming material; spray nozzles to coat dried particles; and vibratory screeners to scalp, classify or de-dust dried material.