Mobile Dewatering Sand Screws range in size from 5’ x 16’ to 6 ’x 20’, and are teamed with single or twin dewatering screws. The screens are outfitted with strategically placed nozzles to scrub materials clean. High capacity dewatering screws deliver the fine aggregates while chutes and cross conveyors deliver the sized products. The portable chassis design is easy to transport to the desired site and easy to set up. Terex Washing Systems also provide single and twin screw options for fines washing, classifying and dewatering materials.