Swiss Locomotive and Machine Works (German Schweizerische Lokomotiv- und Maschinenfabrik; French Société Suisse pour la Construction de Locomotives et de Machines; or for both, SLM) was a railway equipment manufacturer based in Winterthur in Switzerland. Much of the world's mountain railway equipment was constructed by the company.
History The company was founded in 1871 by the British engineer Charles Brown. SLM built both steam and electric locomotives, including the crocodile type.
From 1992, SLM returned to producing steam locomotives designed around advanced steam technology principles. This included rebuilding DR Class 52.80 locomotive number 52 8055.
In 1998, the cog-railway division was sold to Stadler Rail, and the engineering division, via Adtranz, to Bombardier Transportation. The remaining business was renamed Sulzer-Winpro AG and as part of a management buyout in 2001, was renamed Winpro AG.
The advanced steam division was sold in 2000 to Dampflokomotiv- und Maschinenfabrik AG (Steam Locomotive and Machine Works Ltd), or DLM AG.
In October 2001, the measurement division was sold to PROSE AG.
Winpro AG was sold on 7 September 2005 to Stadler Rail.
Tractor
In 1919, SLM developed a tractor to create a new area of business. The tractor had an engine power of 30 hp. The vehicle was 5,500 mm long and 2,100 mm wide. The wheelbase was 3000 mm. The total weight was 2,800 kg. The top speed was 6 km/h. The drive wheels on the front axle had a diameter of 1600 mm. The rear wheel had a diameter of 750 mm.
Preserved SLM Locomotives Finland Image Class Built Number Type SLM Number Wheel arrangement LocationNotes Sk1 1885 124 Mixed traffic steam locomotive 405 Finnish Railway Museum F1 1886 132 Passenger steam locomotive 434 Finnish Railway Museum “Felix”
France Image Class Built Number Type SLM Number Wheel arrangement LocationNotes 1923 6 Mountain railway rack steam locomotive Chamonix Last of 6 built for Chemin de fer du Montenvers 1909 3 Mlle d'Angeville Mountain railway rack steam locomotive 1990 Saint-Gervais-les-Bains One of five built for the Mont Blanc Tramway 1909 4 Jules Jansen Mountain railway rack steam locomotive 1991 Saint-Gervais-les-Bains One of five built for the Mont Blanc Tramway
India Image Class Built Number Type SLM Number Wheel arrangement LocationNotes WCG1 khekda (crab) 1928 4502, Sir Leslie Wilson 1,500 V DC, 650 hpElectric goods locomotive C-C National Rail Museum, New Delhi 10 built by SLM 31 similar built by Vulcan Foundry
Indonesia Image Class Built Number Type SLM Number Wheel arrangement LocationNotes SLM HGm4/6 (PJKA Class BB204) 1993 BB204 15BB204 16 Diesel Electric rack locomotive 5631-5632 Bo-2-Bo Solok depot, West Sumatra Stored at Solok depot SS 1600 (DKA CC50)1928CC50 29 (SS 1629)Articulated mallet locomotive3253Ambarawa Railway Museum, Central Java16 built by SLM, 14 similar built by Werkspoor SS 1100 (DKA C27)1916C27 10 (SS 1110)Baltic express locomotive 2584Transportation Museum of Taman Mini Indonesia Indah, Jakarta29 delivered between 1916 and 1922, built by SLM, Armstrong Whitworth and Werkspoor. SS 3100 (SLM BBC 3)1924SS 3100 (SLM BBC 3)Baltic express locomotive 2584Transportation Museum of Taman Mini Indonesia Indah, Jakarta29 delivered between 1916 and 1922, built by SLM, Armstrong Whitworth and Werkspoor.
Switzerland Image Class Built Number Type SLM Number Wheel arrangement LocationNotes 1902 5 Narrow gauge steam locomotive 1440 0-6-0T Waldenburg railway Built for the Waldenburg railway; gauge ; named Gedeon Thommen 1912 6 Narrow gauge steam locomotive 2276 Swiss Museum of Transport Built for the Waldenburg railway; gauge ; named Waldenburg Ge 6/6 1912-1929 402, 406, 407, 411, 414, 415 Narrow gauge electric locomotive Various locations Built for Rhaetian Railway; gauge
United Kingdom Image Class Built Number Type SLM Number Wheel arrangement LocationNotes 1895 2 Enid Mountain railway rack steam locomotive 924 Snowdon Mountain Railway 1895 3 Wyddfa Mountain railway rack steam locomotive 925 Snowdon Mountain Railway 1896 4 Snowdon Mountain railway rack steam locomotive 988 Snowdon Mountain Railway 1896 5 Moel Siabod Mountain railway rack steam locomotive 989 Snowdon Mountain Railway 1922 6 Padarn Mountain railway rack steam locomotive 2838 Snowdon Mountain Railway 1923 7 Ralph Sadler Mountain railway rack steam locomotive 2869 Snowdon Mountain Railway 1923 8 Eryri Mountain railway rack steam locomotive 2870 Snowdon Mountain Railway
See also SLM factories Jakob Buchli - a railway pioneer with the SLM
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References