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CRRC Zhuzhou SS4

Built by Zhuzhou

Top speed

100 km/h

62 mph

Power output

6,400 kW

8,583 hp

Weight

184 t

405,650 lb

Length

15.2 m

49 ft 10 in

Track gauge

1,435 mm

Standard gauge

Years built

1985–2006

158 units

Overview of the CRRC Zhuzhou SS4

Explore the SS4, a powerful electric locomotive designed and built in China by Zhuzhou from 1985 to 2006.

This robust machine, operated by the China Railway Corporation, is specifically engineered for heavy freight transport.

With a top speed of 100 km/h and an impressive power output of 6400 kW, the SS4 locomotive delivers exceptional performance.

Its Bo'Bo'+Bo'Bo' axle configuration and substantial weight of 184 tons enable a formidable tractive effort of 628 kN.

Running on a 1435 mm gauge and utilizing 25 kV AC 50 Hz electric systems, the SS4 is a significant presence on Chinese railways, measuring 15.2 meters in length.

CRRC Zhuzhou SS4 technical specifications

	Value	Imperial / US
Series	SS4
Built by	Zhuzhou · 1985–2006158 units
Top speed	100 km/h62 mph	62 mph
Power output	6,400 kW8,583 hp	8,583 hp
Tractive effort	628 kN141,180 lbf	141,180 lbf
Electric systems	25 kV AC 50 Hz
Track gauge	1,435 mmStandard gauge4 ft 8½ in	4 ft 8½ in
UIC axle arrangement	Bo'Bo'+Bo'Bo'
Length	15.2 m49 ft 10 in	49 ft 10 in
Train length	30.4 m99 ft 9 in	99 ft 9 in
Width	3.1 m10 ft 2 in	10 ft 2 in
Height	4.04 m13 ft 3 in	13 ft 3 in
Weight	184 t405,650 lb	405,650 lb
Axle load	23 t50,706 lb	50,706 lb