CRRC Dalian SS7E

Built by Dalian, Datong

Top speed

170 km/h

106 mph

Weight

126 t

277,782 lb

Track gauge

1,435 mm

Standard gauge

Years built

2001–2006

146 units

Axle arrangement

Co'Co'

Overview of the CRRC Dalian SS7E

Explore the powerful SS7E electric locomotive, a key asset of the China Railway Corporation. This robust machine, built in Dalian and Datong between 2001 and 2006, belongs to the SS7 韶山7 series.

Engineered for performance, the SS7E boasts a top speed of 170 km/h and operates on a 1435 mm gauge. Its substantial 126-tonne weight and Co'Co' wheel arrangement ensure stability and power for demanding railway operations.

Featuring advanced 25 kV AC 50 Hz electrical systems and an impressive tractive effort of 245 kN, the SS7E exemplifies modern Chinese railway engineering, ready to tackle diverse hauling needs with efficiency and reliability.

CRRC Dalian SS7E technical specifications

	Value	Imperial / US
Series	SS7 韶山7
Built by	Dalian, Datong · 2001–2006146 units
Top speed	170 km/h106 mph	106 mph
Tractive effort	245 kN55,078 lbf	55,078 lbf
Electric systems	25 kV AC 50 Hz
Track gauge	1,435 mmStandard gauge4 ft 8½ in	4 ft 8½ in
UIC axle arrangement	Co'Co'
Width	3.1 m10 ft 2 in	10 ft 2 in
Height	4.12 m13 ft 6 in	13 ft 6 in
Weight	126 t277,782 lb	277,782 lb
Axle load	21 t46,297 lb	46,297 lb