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JGR Class 2120 Mantetsu Class 2120 Taiwan Railways Class CK80
Class 2120 locomotive preserved at Ome Railway Park
Type and origin Reference: Power type Steam Builder Dübs and Company, Sharp, Stewart and Company, North British Locomotive Company, JGR - Kobe Build date 1890- Total produced 268
Specifications Configuration: ​  • Whyte 0-6-2T Gauge 1,067 mm (3 ft 6 in) Driver dia. 1,250 mm (49.21 in) Trailing dia. 970 mm (38.19 in) Wheelbase 6.02 m (19 ft 9 in) Length 10.371 m (34 ft 1⁄4 in) Loco weight 51.23 t (50.42 long tons; 56.47 short tons) Fuel type Coal Fuel capacity 1.9 t (1.87 long tons; 2.09 short tons) Water cap. 7.8 m (2,061 US gal; 1,716 imp gal) Firebox: ​  • Grate area 1.33 m (14 sq ft) Boiler pressure 12 kg/cm (171 lbf/in; 1,177 kPa) Heating surface 73 m (786 sq ft) Cylinders Two Cylinder size 40.6 cm × 55.9 cm (16 in × 22 in) Valve gear Stephenson
Performance figures Tractive effort 7,690kg

The JGR Class 2120 was a B6 type 0-6-2 steam tank locomotive used on Japanese Government Railways for shunting and pulling freight cars. The earliest locomotives of this type were imported from Great Britain. One is preserved at the Ome Railway Park in Ome, Tokyo.

During the Russo-Japanese War, the Imperial Japanese Army captured the southern portion of the Russian-owned Chinese Eastern Railway. The Japanese converted the lines under their control to Japanese 1,067 mm gauge, and sent 187 Class 2120 locomotives to the newly established South Manchuria Railway (Mantetsu) in 1905. However, in 1908, Mantetsu completed the conversion of its lines to standard gauge, rendering these locomotives useless. Five were sent directly to the Taiwan Government Railway, and the rest were returned to Japan. The Taiwan Government Railway eventually received a further ten, where they became class CK80.

Same type locomotives were also built in Germany and United States. They were called Class 2400 and Class 2500.

See also

• Japan Railways locomotive numbering and classification
• List of operational steam locomotives in Japan

References

1. ^ Naotaka Hirota Steam Locomotives of Japan (1972) Kodansha International Ltd. pp.25,27,93&103 ISBN 0-87011-185-X

v t e Imperial Japanese Railway Steam Locomotives
Tank	Four-driver (A) No class (1) A1 (150) A2 (110) A3 A4 (120, 130) A5 (190) A6 (160) · A7 (160) A8 (500, 600, 700) A9 (860) A10 (230) Six-driver (B) B1 (1290) B2 (1800, 1850) B3, B4 (1060, 1100) B5 (3080) B6 (2100, 2120, 2400, 2500) B7 (3150) Abt-type Six-driver (C) C1 (3900) C2 (3920) C3 (3950, 3980)
Tender	Four-driver (D) D1 (5000) D2 (5100) D3 (5490) D4 (5130) D5 (5300, 5400) D6 (5500, 5630) D7 (5680) D8 (6150) D9 (6200, 6270, 6300, 6350) D10 (5700) D11 (5160) D12 (6400) Six-driver (E) E1 (7010, 7030) E2 (7450) E3 (8150) E4 (7700) E5 (7900) E6 (7950) E7 (8100) Eight-driver (F) F1 (9150) F2 (9200)

v t e Japanese Government Railway Steam Locomotives
Tank	Four-driver 10 60 150 160 230 400・500・600・700 860 950 960 1000 II 1060 II 1070・1150 5050 B10 B20 Six-driver 1000 I・1010 1020 1170 1200 1230 1250 1265 1360 2100・2120・2700 II・2900・3500 3300 3360 3380 3400 3700 3800 3800 II C10 C11 C12 Ten-driver 4100 4110 E10
Tender	Four-driver 5050 1060 5060 5200 5300・5400・5450・5480 5500・5630・5650 5900 5950 6050 6100 6120 6200・6250 6400 6500 6700・6750 6760 B50 Six-driver 8250 8350 8360・8380 8400 8450 8500　I 8500 II・8550 8620 8700 8800 8850 8600/8900 C50 18900/C51 8200 II/C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 (proposed) HC51 (proposed) Eight-driver 9550・9580 9600 9900/D50 D51 D52 D60 D61 D62 HD53 (proposed) HD60 (proposed) Ten-driver KE50 (proposed) Mallet 9020 9750・9800・9850
Narrow gauge	Four-driver Ke 100 Ke 110 Six-driver Ke 150 Ke 160 Ke 170 Ke 200 Ke 210

v t e South Manchuria Railway locomotives and rolling stock
Steam locomotives	Standard gauge Amei Dabuni Dabusa Dekai Etoi Matei Mikai Mikani Mikashi Mikaro Pashii Pashini Pashisa Pashishi Pashiko Pashiro Pashina Pashiha Purei Pureni Puresa Shikai Sorii Sorini Sorisa Sorisa (Pensori) Tehoi Narrow gauge B6
Railcars & trainsets	Inspection MoTa-2 SuPe-1 SuPeKi-1 Passenger JiHa-1 JiTe-1 KeHa-3 KeHa-6 KiHa-2 KiHa-3 Kiha-4

v t e Taiwan Railway locomotives and rolling stock
Diesel locomotives	Diesel–electric R0 R20 R100 R150 R180 S200 S300 S400 Diesel–hydraulic DHL100 LDH100 LDH200
Electric locomotives	E100 E200•E300•E400 E1000
Electric multiple units	EMU100 EMU200/EMU1200 EMU300 EMU400 EMU500 EMU600 EMU700 EMU800 EMU900 TEMU1000 TEMU2000 EMU3000
Steam locomotives	Post-1945 BK1 BK10 BT40 CK2 CK4 CK50 CK80 CK100 CK110 CK120 CT150 CT230 CT240 CT250 CT270 DK500 DT560 DT580 DT650 EK900 LCK10 LCK20 LCK30 LCK40 LDK50 LDT100 Pre-1945 Class 1 Class 3 No. 9 Class 10 Class 40 Class 45 Class 100 Class 110 Class 120 Alishan Forest Ry Alishan Forest Railway steam locomotives
Railcars	Diesel DR1000•DR1010 DR1000•DSC1000 DR2000•DR2050 DR2100•DR2200 DR2300•DR2400 DR2500 DR2510 DR2600•DR2650 DR2700•DR2750 DR2800•DR2850 DR2900•DR2950 DR3000•DR3070 DR3100•DR3150 Gasoline GA1000•GA1010 GA2100•GA2200 GA2300•GA2400 Steam ST10

• 0-6-2T locomotives
• Steam locomotives of Japan
• Steam locomotives of China
• Steam locomotives of Taiwan
• 1067 mm gauge locomotives of Japan
• Preserved steam locomotives of Japan
• Freight locomotives
• NBL locomotives
• Railway locomotives introduced in 1890