The SJ Class T46 is a

diesel-electric locomotive A diesel locomotive is a type of railway locomotive in which the prime mover is a diesel engine. Several types of diesel locomotives have been developed, differing mainly in the means by which mechanical power is conveyed to the driving wheels ...

used by

Malmtrafik LKAB Malmtrafik, earlier Malmtrafik i Kiruna AB (''MTAB''), is a Swedish railway company which operates the iron ore freight trains on the Iron Ore Line and the Ofoten Line. MTAB is a wholly owned subsidiary of the mining company Luossavaara– ...

for shunting at Kiruna in Sweden. Four locomotives were built by Nyquist & Holm (NOHAB) as upgrades versions of T44 in 1973–1974. The T46 features more powerful engines and six, Co′Co′, instead of four axles. It is the most powerful diesel locomotive used in Sweden. The locomotives are still in use, and three of the engines were supposed to be upgraded in 2007, but the company that was rebuilding them went bankrupt.

LKAB Luossavaara-Kiirunavaara Aktiebolag (LKAB) is a government owned Swedish mining company. The company mines iron ore at Kiruna and at Malmberget in northern Sweden. The company was established in 1890, and has been 100% state-owned since the 195 ...

's own workshops at Notviken are rebuilding them instead.

References

{{diesel-loco-stub NOHAB locomotives Diesel-electric locomotives of Sweden Co′Co′ locomotives Iron Ore Line Railway locomotives introduced in 1973 Standard gauge locomotives of Sweden Shunting locomotives