It is integrated machine consisting of the screen, a spiraland a press unit. During the operation, Solids in the incoming flow willprogressively collect on the screen mesh.During the operation when water level reach at pre-setlevel, the spiral will be activated and convey the solid up to the pressingzone, brushes are connected periphery at the lower section of the spiral willclean the screen mesh.Conveyed solids are compacted and dewatered as per the solidproperties, volume reduction up to 40 percent dry solids can be achieved priorto dispatch.