© trainspo.comCRRC Ziyang SS4G
Built by Dalian, Datong, Zhuzhou, Ziyang
Overview of the CRRC Ziyang SS4G
Discover the powerful SS4G electric locomotive, a railway giant designed for heavy-duty freight transport.
Boasting an impressive power output of 6400 kW and a tractive effort of 628 kN, the SS4G is engineered to move substantial loads efficiently. Its Bo'Bo'+Bo'Bo' wheel arrangement and a weight of 184 tons provide exceptional stability on the tracks.
Manufactured in China by China Railway Corporation, this versatile locomotive has been a cornerstone of the Chinese railway network since its introduction. Its standard gauge of 1435 mm and compatibility with 25 kV AC 50 Hz electrical systems ensure broad operational capabilities.
The SS4G features robust dimensions, measuring 15.2 meters in length, 3.1 meters in width, and 4.04 meters in height, with an axle load of 23 tons. It can reach a top speed of 100 km/h, facilitating competitive transit times for cargo.
CRRC Ziyang SS4G technical specifications
| Value | Imperial / US | |
|---|---|---|
| Series | SS4 | |
| Built by | Dalian, Datong, Zhuzhou, Ziyang · 1993–20071,347 units | |
| Top speed | 100 km/h62 mph | |
| Power output | 6,400 kW8,583 hp | |
| Tractive effort | 628 kN141,180 lbf | |
| Electric systems |
| |
| Track gauge | 1,435 mmStandard gauge4 ft 8½ in | |
| UIC axle arrangement | Bo'Bo'+Bo'Bo' | |
| Length | 15.2 m49 ft 10 in | |
| Train length | 30.4 m99 ft 9 in | |
| Width | 3.1 m10 ft 2 in | |
| Height | 4.04 m13 ft 3 in | |
| Weight | 184 t405,650 lb | |
| Axle load | 23 t50,706 lb |
Operators of the CRRC Ziyang SS4G
Railway companies that have operated the SS4G, with the class designation used by each of them.
| Operator | Class | Country |
|---|---|---|
| China Railway Corporation | CR SS4G | China |
CRRC Ziyang SS4G photos
Photos © their respective authors, shared on trainspo.com. They may show liveries or variants that differ from the specifications above.
Other CRRC Ziyang models

CRRC Ziyang
GKD3B
Diesel locomotive
100 km/h

CRRC Ziyang
DF8B
Diesel locomotive
1997 · 100 km/h

CRRC Ziyang
SS3B
Electric locomotive
2002–2009 · 100 km/h

CRRC Ziyang
CKD9C
Diesel locomotive
2005–2010 · 100 km/h

CRRC Ziyang
SS3
Electric locomotive
1978–2006 · 100 km/h

CRRC Ziyang
CKD9A
Diesel locomotive
2005–2006 · 120 km/h

CRRC Ziyang
CKD7F
Diesel locomotive
2006–2007 · 120 km/h

CRRC Ziyang
SSR 6600
Diesel multiple unit
80 km/h
Similar electric locomotives from other manufacturers

CRRC Zhuzhou
CHA1B1
Electric locomotive
100 km/h

Adtranz
12X
Electric locomotive
1994 · 6,400 kW

CRRC Zhuzhou
SS4C
Electric locomotive
1997 · 100 km/h

Alstom
8K
Electric locomotive
1987–1989 · 100 km/h

NEVZ
CR 8G
Electric locomotive
1987–1990 · 100 km/h

Electroputere
CFR 476
Electric locomotive
120 km/h · 6,600 kW

AEG
DR 252
Electric locomotive
1991 · 125 km/h

Siemens
ES64F
Electric locomotive
1996–2001 · 140 km/h