Bangladesh Railway Class 6400

Bangladesh Railway Class 6400
Maitri Express
Type and origin Power type Diesel-electric Builder Diesel Locomotive Works, India Serial number 6401 - 6413 Model WDM-2B, WDM-2CA Build date 6401 - 6410 (WDM-2B): 2001; 6411 - 6413 (WDM-2CA): 2004 Total produced 13
Specifications Configuration: ​  • UIC Co-Co Gauge 1,676 mm Bogies Alco design asymmetric cast frame trimount (Co-Co) bogies Wheelbase 42” 1 ¼ “ Length: ​  • Over beams 12,862 mm Width 9” 4 ¾” Height 13” 8 ¾” Axle load 18,800 kg Loco weight 112.8 Metric Ton Fuel type Diesel Fuel capacity 5,000 Liter Prime mover ALCo 16-251C RPM range 400-1050 RPM Engine type Four-stroke diesel engine Traction motors BHEL 4906 Cylinders 16 Gear ratio 65:18 Loco brake Air Couplers AAR
Performance figures Maximum speed 120 km/h Power output 2,600 hp Factor of adh. 27%
Career Operators Bangladesh Railway Class BED-26 Disposition Active

Bangladesh Railway Class 6400 is a class of broad-gauge diesel-electric locomotives owned by Bangladesh Railway. Total 13 locomotives have been manufactured by Diesel Locomotive Works (DLW), India, 10 in 2001 as WDM-2B and 3 in 2004 as WDM-2CA. They are classified as BED-26 (where B = Broad gauge, E = Diesel-electric, D = DLW and 26 = 26 * 100 hp) and numbered as 6401 - 6413. Currently all are active in service.

Details

Class 6400 are 2,600 hp diesel-electric broad-gauge locomotives. Their model are WDM-2B and WDM-2CA. They have a wheel configuration of Co-Co with gear ratio 65:18. All are fitted with air brake and AAR coupling. Unlike their Indian counterparts, these locomotives do not have the dynamic braking system.

Usage

Class 6400 locomotives when introduced, were used prominently on high-end passenger trains like Padma Express, Silk City Express and Maitree Express. Now they are mostly used on freight trains as Class 6500 locomotives are used to haul high-end passenger trains.