The HXD1 is an eight axle high power heavy freight twin unit locomotive of axle configuration Bo'Bo'+Bo'Bo'. Both the HXD1 and HXD2 double unit locomotives were designated DJ4, the HXD2 units being disambiguated DJ4-6000.
HXD1-0026
HXD1-0004
HXD1 at Datong–Qinhuangdao railway
On the Daqin line the HXD1, both double headed and distributed along the train.
The China Railways DJ1 is a high power mainline electric freight locomotive built as a double locomotive unit of two nominally independent single cab units.
DJ1-0003