A method and apparatus for forming the base of a can are described. The base forming apparatus is typically a dome station for forming a dome on the base of a beverage can. The dome station is mountable onto a dome door of a bodymaker press, thereby avoiding the common failure of mounting bolts. A complete polyurethane ring (20) is used to create overtravel force and maintain consistent and symmetrical loading on the tooling. A compact biasing arrangement is used to simplify maintenance of the tooling and reduce the need for accurate alignment.