Steel body mandrel pigs are designed to move bi-directionally inside a pipeline. These style pigs consist of a steel mandrel pig body and a combination of pig parts (cups, discs, brushes). Our six standard mandrel pigs include the BD6, BD6-RB, BD6-BR, BA-2, ISTE, and the Pig Cleaning™ pig. Steel body mandrel pigs are designed to have a long life due to the fact that the parts can be replaced when they become worn out making it a complete new pig. The main use of these pigs is liquid displacement, general cleaning, product separation, and black powder & paraffin removal.