Industry publication for
railway transport specialists

MDD 3 diesel shunting locomotive


Express Service OOD


DZS, Ruse 7011, Bulgaria
Tel. +359 88 7412838

MDD 3 diesel shunting locomotive

MDD 3 diesel shunting locomotive is the smallest two-axle shunter. It is powered by two synchronized diesel engines that deliver 300kW of power. Due to a good choice of gearboxes, vehicle top speed could be adjusted between 15 and 60km/h thus customers select the optimal tractive effort. These locos are quite flexible not only in terms of top speed – their mass is adjustable from just 20 tons for metro and urban rail projects to 36 tons for heavy industrial shunting works. Hauling capacity is up to 1600 tons. This model is homologated in Ukraine, Kosovo, Macedonia but it is generally intended to perform in-yards at industrial sites, ports, factories.

Gauge 1435mm
Wheelset arrangement                                 B (two axles)
Diesel engines 2×150 kW CAT
Speed regulation Electronic
Dimensions UIC 505-1 (see drawing)
Wheelbase 4700 mm
Tara weight.28 t
Top speed 60 km/h
Wheels profile UIC 510-2
Min. continuous speed 15 km/h
Min. curve radius 60 m.
Max. allowed slope4,20%
Max. traction force 120 kN
Wagons brake UIC 540, 541, 542 and 544
Operating temperatures (-30) to (+40) C˚