The desilter unit BDS 125-20 demonstrates the compact design of the desilters. It comprises a cyclone set with 4” cyclones (6 units) that are arranged uniformly around a circular distributor head. The unit can be used with centrifugal pump BP 125 as coupling unit. It is primarily used together with the BE 250-60 in tunneling work and on cutting sites. When also used with slurry tank ST 25-H, this results in an optimal system for perfect slurry preparation.