CR series DF7G

DF7G
	DF7G at Beijing West Railway Station
Numbering:	0001-0098; 5001-5242; 8001-8003; 9001-9004
Year of construction (s):	2003–
Axis formula :	Co'Co'-del
Gauge :	1435 mm ( standard gauge )
Bogie axle base:	1.8 m
Service mass:	138 t
Top speed:	100 km / h
Starting tractive effort:	435 kN
Driving wheel diameter:	1050 mm
Power transmission:	electric
Drive:	diesel-electric

The DF7G is a Chinese diesel locomotive . It is mainly used as a shunting , but also as a passenger train locomotive.

DF7G on Lianhua Bridge, Beijing

Overview

bogie

	Standard type	Standard type	Type Qinghai-Tibet Railway	Type port
number	0001 ～ 0098	5001 ～ 5241	8001 ～ 8003	9001 ～ 9004
Manufacturer	Qingdao Sifang Qishuyan	Locomotive factory February 7th
number of pieces	98	241	3	4th
Year of production	2002–	2003–	2006	2006
Axis formula	Co'Co '
engine	12V240ZJ	12V240ZJ6F	EQ16V240ZJB	12V240ZJ6F
Installed power (kW)	2200	2000	2940	2000
Traction power (kW)	2000	1840	2200 (at 2200-3000 m) 2000 (at 3000-4600 m)	1840
Continuous output	1610	1500	1760 (at 2200-3000 m) 1600 (at 3000-4600 m)	1500
Maximum speed	100
Starting tractive effort (kN)	435		438	435
Continuous tensile force (kN)	324	317	295	317
generator	JF208A		JF208E	JF208A
Traction motor	ZQDR-410, ZD124, ZD109J	ZD109J, ZD124, ZD109BG	ZD125B	ZD109J
Empty weight (t)	138
Axle load (t)	23
Minimum curve radius (m)	138	100
Distance (mm)	2 × 1800
Total length (mm)	18,400	18,980
Total width (mm)	3.285	3.310
Vehicle height (mm)	4,648	4,763
Tank capacity (l)	6,500	6,000