The Voith Maxima locomotives are a family of diesel-hydraulic locomotives built by Voith Turbo Lokomotivtechnik GmbH & Co. KG., a subsidiary of Voith. The most powerful single-engined diesel-hydraulic locomotive in the world, the Maxima 40CC is rated at 3,600 kW. Initially two versions of a 6 axle C'C' machine were offered with medium speed engines from the Anglo-Belgian Corporation; the Maxima 30CC and Maxima 40CC. In 2008 a third model, the Maxima 20BB, a 4 axle B'B' machine was added to the range.