© trainspo.comCRRC Datong SS7C
Built by Datong
Overview of the CRRC Datong SS7C
Discover the powerful SS7C electric locomotive, a workhorse of China Railway Corporation.
This robust locomotive, designated as CR SS7C, is built for demanding service.
Manufactured in Datong between 1998 and 2007, with 171 units produced, the SS7C is a testament to modern Chinese rail engineering.
Its Bo'Bo'Bo' axle configuration and 1435 mm gauge allow it to navigate extensive rail networks efficiently.
With a top speed of 120 km/h, it is well-suited for both passenger and freight operations.
The SS7C operates on 25 kV AC 50 Hz electric systems, ensuring reliable and high-performance traction.
Explore the technical specifications of this impressive electric locomotive and its role in China's vast railway infrastructure.
CRRC Datong SS7C technical specifications
| Value | Imperial / US | |
|---|---|---|
| Series | SS7 韶山7 | |
| Built by | Datong · 1998–2007171 units | |
| Top speed | 120 km/h75 mph | |
| Electric systems |
| |
| Track gauge | 1,435 mmStandard gauge4 ft 8½ in | |
| UIC axle arrangement | Bo'Bo'Bo' | |
| Width | 3.1 m10 ft 2 in | |
| Height | 4.7 m15 ft 5 in | |
| Axle load | 22 t48,502 lb |
Operators of the CRRC Datong SS7C
Railway companies that have operated the SS7C, with the class designation used by each of them.
| Operator | Class | Country |
|---|---|---|
| China Railway Corporation | CR SS7C | China |
CRRC Datong SS7C photos
Photos © their respective authors, shared on trainspo.com. They may show liveries or variants that differ from the specifications above.
More electric locomotives from CRRC Datong

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CRRC Datong
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CRRC Datong
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CRRC Datong
SS4G
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1993–2007 · 100 km/h

CRRC Datong
SS7D
Electric locomotive
1999–2002 · 170 km/h

CRRC Datong
SS7E
Electric locomotive
2001–2006 · 170 km/h
CRRC Datong
SS7B
Electric locomotive
1997 · 100 km/h
CRRC Datong
SS7
Electric locomotive
1992–2006 · 120 km/h
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