CRRC Datong SS7D

Built by Datong

Top speed

170 km/h

106 mph

Weight

126 t

277,782 lb

Length

22.02 m

72 ft 3 in

Track gauge

1,435 mm

Standard gauge

Years built

1999–2002

59 units

Axle arrangement

Bo'Bo'Bo'

Overview of the CRRC Datong SS7D

Discover the powerful and efficient SS7D electric locomotive, a significant part of the China Railway Corporation's fleet. Built in Datong between 1999 and 2002, this robust locomotive embodies advanced engineering for demanding rail operations.

Boasting a top speed of 170 km/h, the SS7D is engineered for both freight and passenger transport across China's extensive rail network. Its standard gauge of 1435 mm and Bo'Bo'Bo' wheel arrangement ensure excellent stability and traction.

Measuring 22.02 meters in length and weighing 126 tons, the SS7D stands as a testament to modern Chinese locomotive design. It operates on a 25 kV AC 50 Hz electrical system and delivers an impressive tractive effort of 245 kN, making it a dependable and high-performance choice for various railway challenges.

CRRC Datong SS7D technical specifications

	Value	Imperial / US
Series	SS7 韶山7
Built by	Datong · 1999–200259 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	Bo'Bo'Bo'
Length	22.02 m72 ft 3 in	72 ft 3 in
Width	3.11 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	22 t48,502 lb	48,502 lb