JNR Class EF70
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JNR Class EF70
The is a Bo-Bo-Bo wheel arrangement Alternating current, AC electric locomotive type operated by Japanese National Railways (JNR) in Japan from 1961 until the 1980s. 81 locomotives were built by Hitachi Rail, Hitachi and Mitsubishi between 1961 and 1965. Variants * EF70-0: Numbers EF70 1 – 81 * EF70-1000: Numbers EF70 1001 – 1007 renumbered from EF70 22 to 28 in 1968 File:JNR EF70 21 Toyama 19830830.jpg, First-batch type EF70 21 in 1983 File:JNR ef70 55 tsuruga2ku.jpg, Second-batch type EF70 55 in 1984 Design The Class EF70 was developed for use through the steeply graded Hokuriku Tunnel on the Hokuriku Main Line, and was designed to be capable of hauling 1,300 tonne freight trains on a 10‰ gradient and passenger trains at up to . The locomotives had two PS100A Pantograph (rail), pantographs, but normally operated with only the rear pantograph raised. Locomotive numbers EF70 22 onward (built from 1964) incorporated minor design changes, including two roof-mounted head ...
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Hitachi Rail
() is a Japanese multinational conglomerate corporation headquartered in Chiyoda, Tokyo, Japan. It is the parent company of the Hitachi Group (''Hitachi Gurūpu'') and had formed part of the Nissan ''zaibatsu'' and later DKB Group and Fuyo Group of companies before DKB and Fuji Bank (the core Fuyo Group company) merged into the Mizuho Financial Group. As of 2020, Hitachi conducts business ranging from IT, including AI, the Internet of Things, and big data, to infrastructure. Hitachi is listed on the Tokyo Stock Exchange and Nagoya Stock Exchange and its Tokyo listing is a constituent of the Nikkei 225 and TOPIX Core30 indices. It is ranked 38th in the 2012 Fortune Global 500 and 129th in the 2012 Forbes Global 2000. History Hitachi was founded in 1910 by electrical engineer Namihei Odaira (1874–1951) in Ibaraki Prefecture. The company's first product was Japan's first induction motor, initially developed for use in copper mining. The company began as an in-ho ...
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