WaldrichSiegen horizontal turning lathes, ProfiTurn Hre the ideal machine tools for precise and efficient machining of rotation symmetric workpieces with a diameter of up to 7 m, a length of 30 m and a weight of 500 tons. WaldrichSiegen offers ProfiTurn H optionally as a turn-milling machine with an integrated milling unit or as a crankshaft lathe.