WesTech CleanFlo spiral screens provide efficient, economical screening for plants with flows of less than 10 million gpd. Screening, conveying and compaction are all performed by one drive motor. The stainless steel screen panel is automatically cleaned by long-wearing segmented brushes that are attached to a one-piece shaftless spiral auger. The shaftless spiral transports the screenings up the collection tube, where they are compacted and dewatered to 30% to 35% water content. These units are ideal for both municipal and industrial applications, especially in plants with relatively small flow requirements.