The S100 can be configured to meet each customer’s individual needs. It can be equipped with up to two internal grinding spindles, or one internal and one external spindle. In addition to a fixed wheelhead, it can be supplied with a manual wheelhead and a 2.5 degree Hirth coupling. The optimal combination consists of an automatic wheelhead with a 1 degree Hirth. A synchronous motor drives the grease-lubricated internal and external belt spindles. The machine is operated by the FANUC 0i-TF PLUS controller, together with the proven STUDER operating system.