SJC Multilevel Screens have been engineered for pre-cleaning and fine cleaning of flowing solids. They operate in an auto-balancing circular motion using a single drive and counterweights. The smooth and balanced movement results in maximal utilization of the screen surface for increased throughput. For fine cleaning, aspiration is available. Multiple easy to access screen decks are secured on rails inside an enclosure which is suspended vertically from the screener frame by highly durable carbon rods.