PKP class SM48

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TEM2-218 Skawina Poland, 2010.jpg
SM48/TEM2 locomotive at the station Skawina in Poland
Type and origin
Power type Diesel-electric
Builder USSR
Model ТЭМ2 (TEM2)
Build date 1976
 • UIC Co'Co'
Gauge 1,435 mm (4 ft 8 12 in) standard gauge
Driver dia. 1,050 mm (41.34 in)
Length 16.97 m (55 ft 8 in)
Width (?)
Height 4.44 m (14 ft 7 in)
Loco weight 116 t (114 long tons; 128 short tons)
Fuel capacity 4,590 l (1,010 imp gal; 1,210 US gal)
Prime mover PD1M
Engine type (?)
Cylinders 6
Cylinder size (?)
Transmission Diesel electric
Loco brake Matrosow
Train brakes Air
Performance figures
Maximum speed 100 km/h (62 mph)
Power output 883 kW (1,184 hp)
Tractive effort 372.65 kN (83,780 lbf)
Operators PKP
Class SM48
Nicknames Walentyna

SM48 is the name for class of Soviet diesel locomotives operating in Poland for PKP. The original designation was ТЭМ2 (TEM2), and was the Soviet-built version[citation needed] of the ALCO RSD-1.


The SM48 was originally put into service on the eastern Polish railways, where 1,524 mm (5 ft) Russian broad gauge railways were still in use. In fact, the locomotive coped well with the structure gauge on standard gauge lines.


Since 1976, PKP have bought 130 SM48 locomotives. There are also locos in service with other Polish operators: PCC Rail, PTKiGK Zabrze, Kopalnia Piasku Kotlarnia.

Starting from 2010, several locomotives undergo a modernization to ST48 standard.


  • Tamara - from an original USSR name "TEM2"
  • Walentyna - from a popular female name in USSR

See also[edit]

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