China Railways 6K

Specifications
Specifications
Configuration:;
• UIC	Bo'Bo'Bo'
Gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Length	22.2 m (72 ft 10 in)
Axle load	23 t (22.6 long tons; 25.4 short tons)
Loco weight	138 t (135.8 long tons; 152.1 short tons)
Electric system/s	25 kV AC Catenary
Current pickup(s)	Pantograph
Traction motors	Mitsubishi Electric MB-530-AVR

Type and origin
Type and origin
Power type	Electric
Builder	Kawasaki Heavy Industries
Build date	1986-1987
Total produced	85

6K
6K
	6K-052
Power type
Type and origin
Power type	Electric
Builder	Kawasaki Heavy Industries
Build date	1986-1987
Total produced	85
Configuration:;
Specifications
Configuration:;
• UIC	Bo'Bo'Bo'
Gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Length	22.2 m (72 ft 10 in)
Axle load	23 t (22.6 long tons; 25.4 short tons)
Loco weight	138 t (135.8 long tons; 152.1 short tons)
Electric system/s	25 kV AC Catenary
Current pickup(s)	Pantograph
Traction motors	Mitsubishi Electric MB-530-AVR
Maximum speed
Performance figures
Maximum speed	100 km/h (62 mph)
Power output	4,800 kW (6,400 hp)
Tractive effort	485 kN (109,000 lbf) (starting); 355 kN (80,000 lbf) (continuous)
Operators
Career
Operators	China Railway
Numbers	6K-001-6K-086

The 6K is a Japanese-built electric locomotive used in China. It is developed and built by Kawasaki Heavy Industries and Mitsubishi Electric. The design of 6K is based on JNR Class ED75 and EF66 electric locomotives. It is the first locomotive with Bo-Bo-Bo wheel arrangement used in China.

Production

In total 85 6Ks were built between 1986 and 1987.

Equipment

Each 6K locomotive uses CLG-616 phase splitter and 6 Mitsubishi Electric MB-530-AVR DC traction motors.

Performance

6K was one of the most reliable electric locomotives in China compared with SS1, SS2 and SS3 at the time of entering service. China later made SS7 locomotive with reference to the Tri-Bo wheel arrangement of 6K, the breakdown rate, however, was still high, until its modified version SS7B, SS7C and SS7D designed.