Admittedly, it has been a few years since the first CNC machines found their way into workshops. But when the component whose shape is machined fully automatically on such a computer-controlled system is 14 metres long and more than 3 metres wide, it makes quite an impression. The side walls of lorry trailers or caravans, for example, can be machined on the largest CNC milling machine at Stadur in Hammah, a small village in the district of Stade.