China Railways BJ

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BJ3248 at Nanpiao.jpg
BJ3248 in Nanpiao, Liaoning
Type and origin
Power type Diesel-hydraulic
Builder February 7th Works
Model Standard
Build date 1970 - 1991
Total produced 346 (standard)
12 (24) (2-unit)
16 (port)
UIC class B-B
Gauge 4 ft 8 12 in (1,435 mm)
1,520 mm (4 ft 11 2732 in)
Wheel diameter 1,050 mm (41 in)
Minimum curve 125 m (410 ft 1 in)
Length 15,045 mm (49 ft 4.3 in)
Width 3,285 mm (10 ft 9.3 in)
Height 4,512 mm (14 ft 9.6 in)
Axle load 23 t (51,000 lb)
Loco weight 92 t (203,000 lb)
Fuel capacity 5,500 L (1,500 US gal)
Water cap 1,200 L (320 US gal)
Prime mover 12V240ZJA
RPM range 1100 rpm
Engine type V12 diesel
Cylinders 12
Cylinder size 240 mm × 260 mm (9.4 in × 10.2 in)
Transmission Hydraulic
Performance figures
Maximum speed 120 km/h (75 mph)
Power output 1,990 kW (2,670 hp)
Tractive effort:
 • Continuous 163 kN (37,000 lbf)
Operators ChinaChina Railways
North Korea Korean State Railway

China BJ 1001 - 1012 (port, std g)
China BJ 1101 - 1104 (port, brd g)
China BJ 2001A/B - 2012A/B (2-unit)
China BJ 3001 - 3346 (standard)

North Korea 내연301 - 내연333

Beijing, mostly referred to as BJ, is a diesel-hydraulic locomotive used in the People's Republic of China. It is named after the capital city of China, Beijing.

BJ were made in two different versions, a standard version and a kou'an (port) version. China Railways DF7D, a diesel electric locomotive based on DF7B, has a similar appearance to the Beijing locomotive.

North Korea[edit]

From 2002 the Korean State Railway has received a number of BJ class locomotives second-hand from China. They are used mostly for heavy shunting and on local freight trains around P'yŏngyang.[1] At least 33 have been delivered, numbered in the 내연301 - 내연333 series (내연 = Naeyŏn, "internal combustion"); most are still painted in their original Chinese blue livery, but a few have been repainted into the standard North Korean scheme of light blue over dark green, and at least one, 내연310, is painted in a scheme identical to the Chinese green livery used on Chinese DF4 locomotives.


  1. ^ Kokubu, Hayato. 将軍様の鉄道. Shōgun-sama no Tetsudō. p. 103. ISBN 978-4-10-303731-6.