Steel body or mandrel pigs consist of a metal body with interchangeable cups, discs and brushes. All these components can be replaced as they wear. The steel body pig can be equipped with various brushes, depending on the type of the deposits you are trying to remove (wrap-around brushes, circular brushes or spring-loaded brushes). Gauging plates, transmitters and magnets can also be accommodated.
Steel body pigs are used for pipeline cleaning, batching, gauging. Configurations of a combination of cups and discs and brushes is determined by the task you are trying accomplish.