JR Freight Class DB500

7,650 mm (25 ft 1+1⁄8 in)Width2,824 mm (9 ft 3+1⁄8 in)Height3,670 mm (12 ft 1⁄2 in)Axle load13.45 t
(13.24 long tons; 14.83 short tons)Loco weight26.9 t
(26.5 long tons; 29.7 short tons)Fuel typeDieselEngine type4-cycle, straight-six engine, water-cooledCylinders6Safety systemsATS-SF

Performance figures
Maximum speed	25 km/h (15 mph)
Power output	184 kW (247 hp) @2,000 rpm
Tractive effort	66 kN (15,000 lbf)

Career
Operators	JR Freight
Number in class	4
Numbers	DB500-1 DB500-4
Delivered	2016
First run	4 March 2017
Disposition	In service

The Class DB500 (DB500形) is a B wheel arrangement two-axle diesel-hydraulic locomotive type operated by Japan Freight Railway (JR Freight) on shunting duties in Japan since March 2017.^[1]

Overview

The Class DB500 was developed to replace ageing Class DE10 diesel-hydraulic locomotives used for shunting duties at smaller freight terminals such as Shimonoseki in Yamaguchi Prefecture.^[1] The locomotive has a single water-cooled four-cycle straight six-cylinder diesel engine, with a power output of 184 kW (247 hp), sufficient to haul 500-tonne (490-long-ton; 550-short-ton) trains.^[1]

History

The Class DB500 entered service at Shimonoseki Freight Terminal from the start of the revised timetable on 4 March 2017.

Classification

The DB500 classification for this locomotive type is explained below.

• D: Diesel locomotive
• B: Two driving axles
• 500: Diesel-hydraulic locomotive

References

Further reading

• DB500形液体式内燃機関車 続報 [Class DB500 diesel-hydraulic locomotive (Follow-up report)]. Japan Railfan Magazine (in Japanese). Vol. 57, no. 678. Japan: Koyusha Co., Ltd. October 2017. p. 67.

External links

• Hokuriku Heavy Industries website (in Japanese)