The MD190C is a very popular model in deep foundations since it combines a easy transportation with a very high capacity of treatment. Double cycloning circuit achieve an improved performance and separation efficiency. MODEL&CO double cycloning Desanders have a nominal flow to work in double cycloning circuit, however if inlet flow exceeds the nominal flow, then the flow pass automatically to secondary circuit, so that the machine can work fully as a simple cycloning desander, and the capacity would be the addition of both capacities, primary + secondary circuits.