Between 1853 and 1893, 31 steam locomotives were made at Munktells Mekaniska Verkstad. Sweden's first steam locomotive, known as "Förstlingen" (The first born), was delivered to Norberg's mine railway in 1853. The track was not particularly suited to locomotives because of its sharp bends and gradients. The local people called it the "pig" because of the way it grunted uphill and squealed against the rails in the bends. Although this was not a particularly successful design, it paved the way for future developments.
The second locomotive from Munktells Mekaniska Verkstads AB - "Frykstadsloket" - was a tremenous success and meant a breakthrough for rail as a form of transport - for freight and passengers alike.