After the demand for ships decreased following the end of the First World War, Hitachi, under its founder Namihei Odaira, acquired the Kasado Factory in Kudamatsu, Yamaguchi from a nearly bankrupt shipbuilder.[7] This factory was converted into a locomotive manufacturing facility. In the 1920s, Hitachi's railway products included the JNR Class ED15 locomotives, the first electric mainline locomotives built in Japan,[8] and steam locomotives such as the Class 8620 and Class D50.[7] As mainline electrification progressed, Hitachi developed and produced much larger and more powerful electric locomotives, such as the Class EF55 streamliners (1936), the Class EF56 (1937), and the Class EF57 (1940). During this time, Hitachi also supplied locomotives to colonies in Taiwan, Korea, and the South Manchuria Railway.
After the Second World War, Hitachi primarily manufactured locomotives and other railway equipment for two decades. During this period, the company built the Class C62 locomotives, the largest and fastest steam locomotives in Japanese rail history.[7] One of these, C62 17, still holds the world steam speed record for narrow-gauge tracks at 129 km/h. Another notable Hitachi-built locomotive was the EF58, which operated on the Tokaido Main Line express trains alongside the C62. In the 1950s, diesel locomotives were introduced on non-electrified lines in remote parts of Japan. Japanese National Railways adopted two types of mainline diesel locomotives: the diesel-electric DF50 and the diesel-hydraulic DD51. Hitachi was involved in the development and manufacturing of both.[9]
Hitachi's rail division delivered 120 CQ311 series railcars to MARTA from 1984 to 1988.
Hitachi Rail Europe (legally Hitachi Rail Limited) was established in London as the European headquarters of the company in 1999.[12] Other subsidiaries have been established globally.[13]
On February 24, 2015, Hitachi agreed to purchase the Italian rolling stock manufacturer Ansaldo Breda and acquire Finmeccanica's stake in Ansaldo STS, the railway signaling division of Finmeccanica[15] The purchase was completed later that year,[16] at which point the company was renamed as Hitachi Rail Italy. Since then, Hitachi has obtained a majority stake in Ansaldo STS.[17]
In July 2020, Hitachi signed an exclusive agreement with Hyperdrive, a UK-based lithium-ion battery company, to bring battery-powered trains to the country.[18]
In late 2022, Hitachi Rail won the contract to supply train sets for the Ontario Line being planned in Toronto, Canada.[22]
In 2024, Hitachi Rail and MERMEC signed a put option agreement for the sale of Hitachi Rail’s main line signalling business in France and its signalling business units in Germany and the UK.[23]
In May 2024, Hitachi Rail completed the acquisition of Thales Group's Ground Transportation Systems for €1.66 billion. This move will help expand its global presence in the rail sector to 51 countries.[24]