CRRC Qingdao Sifang DF4B

Built by Dalian, Datong, Sifang, Ziyang

Top speed

120 km/h

75 mph

Power output

2,650 kW

3,554 hp

Weight

138 t

304,238 lb

Length

21.1 m

69 ft 3 in

Track gauge

1,435 mm

Standard gauge

Years built

1984

Overview of the CRRC Qingdao Sifang DF4B

Discover the DF4B diesel locomotive, a powerful and versatile workhorse of the Chinese railway system.

This robust locomotive, built by manufacturers like Dalian, Datong, Sifang, and Ziyang since 1984, boasts a formidable 2650 kW power output and can reach speeds of up to 120 km/h.

With its standard 1435 mm gauge and Co'Co' axle configuration, the DF4B is an indispensable asset for both freight and passenger services, operated by China Railway Corporation and private owners alike.

Its substantial dimensions, including a length of 21.1 meters and a weight of 138 tons, underscore its capability to haul heavy loads with an impressive tractive effort of 328 kN.

CRRC Qingdao Sifang DF4B technical specifications

	Value	Imperial / US
Series	DF4
Built by	Dalian, Datong, Sifang, Ziyang · 1984
Top speed	120 km/h75 mph	75 mph
Power output	2,650 kW3,554 hp	3,554 hp
Tractive effort	328 kN73,737 lbf	73,737 lbf
Track gauge	1,435 mmStandard gauge4 ft 8½ in	4 ft 8½ in
UIC axle arrangement	Co'Co'
Length	21.1 m69 ft 3 in	69 ft 3 in
Width	3.31 m10 ft 10 in	10 ft 10 in
Height	4.75 m15 ft 7 in	15 ft 7 in
Weight	138 t304,238 lb	304,238 lb
Axle load	23 t50,706 lb	50,706 lb