The OMS provides the different type of configuration of Top Feed systems. Mostly the system used with cranes and the Power Pack of vibroflotation probe locates behind the crane. The “tandem configuration” is consisting of two vibroflotation probes. Depending on customer requirement, Tandem vibroflotation Probes can be operated by a single but powerful Hydraulic Power Pack or two Power Packs. All necessary spread of Vibroflotation should be designed by OMS in according to customers crane and their project.