Swiss Locomotive and Machine Works

{{Infobox company

| name = Swiss Locomotive and Machine Works

| logo =

| image = SMR 6 at Llanberis 05-07-19 04.jpeg

| image_caption = SLM is best known for mountain railway equipment

| type = Subsidiary

| industry = Rail transport

| fate =

| successor = Stadler Rail

| founded = {{Start date and age|df=yes|1871}}

| defunct = 2005

| location = Winterthur, Switzerland

| locations =

| area_served = Worldwide

| key_people =

| products = {{ubl|Electric locomotives|Steam locomotives|Railcars}}

| services =

| revenue =

| num_employees =

| owner =

| parent =

| divisions =

| subsid =

| homepage =

}}

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.{{Cite web|url=http://www.irsociety.co.uk/Archives/60/Letters_60.htm|title = Correspondence 60}} 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.{{Cite web|url=http://5at.co.uk/index.php/modern-steam-2/modern-steam-miscellany/dlm-52-8055.html|title = DLM's Kriegslok 52-8055 | 5AT Advanced Steam Locomotive Project}}

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.{{cite web| url=http://www.internationalsteam.co.uk/trains/newsteam/modern.htm#Sulzer| title=Sulzer Winpro sells Steam Business to Hug Engineering| work=International Working Steam Locomotives| author=Dickinson, Rob| access-date=2008-03-06}}

In October 2001, the measurement division was sold to PROSE AG.

Winpro AG was sold on 7 September 2005 to Stadler Rail.

Preserved SLM Locomotives

=Finland=

Image	Class	Built	Number	Type	SLM Number	Wheel arrangement	Location	Notes
class="wikitable"
150px	Sk1	1885	124	Mixed traffic steam locomotive	405	{{whyte\|2-6-0}}	Finnish Railway Museum
\| 150px	F1	1886	132	Passenger steam locomotive	434	{{whyte\|0-4-4\|T}}	Finnish Railway Museum	“Felix”

=France=

Image	Built	Number	Type	SLM Number	Wheel arrangement	Location	Notes
class="wikitable"
150px	1923	6	Mountain railway rack steam locomotive		{{whyte\|2-4-2\|T}}	Chamonix	Last of 6 built for Chemin de fer du Montenvers
150px	1909	3 Mlle d'Angeville	Mountain railway rack steam locomotive	1990	{{whyte\|0-4-0\|T}}	Saint-Gervais-les-Bains	One of five built for the Mont Blanc Tramway
150px	1909	4 Jules Jansen	Mountain railway rack steam locomotive	1991	{{whyte\|0-4-0\|T}}	Saint-Gervais-les-Bains	One of five built for the Mont Blanc Tramway

=India=

Image	Class	Built	Number	Type	SLM Number	Wheel arrangement	Location	Notes
class="wikitable"
150px	WCG1 khekda (crab)	1928	4502, Sir Leslie Wilson	1,500 V DC, 650 hp Electric goods locomotive		C-C	National Rail Museum, New Delhi	10 built by SLM 31 similar built by Vulcan Foundry{{cite book \|last1=Hollingsworth \|first1=Brian \|last2=Cook \|first2=Arthur \|title=Modern Locomotives \|chapter=Class WCG1 \|year=2000 \|isbn=0-86288-351-2 \|ref={{harvid\|Modern Locomotives}} \|pages=50–51 \|publisher=Pavilion Books }}

=Indonesia=

Image	Class	Built	Number	Type	SLM Number	Wheel arrangement	Location	Notes
class="wikitable"
150px	SLM HGm4/6 (PJKA Class BB204)	1993	BB204 15 BB204 16	Diesel Electric rack locomotive	5631-5632	Bo-2-Bo	Solok depot, West Sumatra	Stored at Solok depot{{cite web\|url=https://redigest.web.id/2019/05/bb-204-dan-kereta-penumpang-nippon-sharyo-mulai-ditanahkan/\|title=BB 204 dan Kereta Penumpang Nippon Sharyo Mulai Ditanahkan\|website=redigest.web.id\|date=16 May 2019\|accessdate=28 January 2022\|language=ID}}
150px	SS 1600 (DKA CC50) \|1928 \|CC50 29 (SS 1629) \|Articulated mallet locomotive \|3253 \|{{whyte\|2-6-6-0}} \|Ambarawa Railway Museum, Central Java \|16 built by SLM, 14 similar built by Werkspoor{{Cite book \|last=De Jong \|first=H. \|title=De Locomotieven van Werkspoor \|publisher=Alk \|year=1986 \|isbn=9789060139332 \|location= \|language=Dutch}}
150px	SS 1100 (DKA C27) \|1916 \|C27 10 (SS 1110) \|Baltic express locomotive \|2584 \|{{whyte\|4-6-4\|T}} \|Transportation Museum of Taman Mini Indonesia Indah, Jakarta \|29 delivered between 1916 and 1922, built by SLM, Armstrong Whitworth and Werkspoor.{{Cite book \|last=Oegema \|first=J.J.G. \|title=De Stoomtractie op Java en Sumatra \|publisher=Kluwer Technische Boeken B.V. \|year=1982 \|isbn=9020115200 \|location=Deventer-Antwerpen \|language=Dutch}}

=Switzerland=

Image	Class	Built	Number	Type	SLM Number	Wheel arrangement	Location	Notes
class="wikitable"
150px		1902	5	Narrow gauge steam locomotive	1440	0-6-0T	Waldenburg railway	Built for the Waldenburg railway; gauge {{RailGauge\|750mm\|lk=on}}; named Gedeon Thommen{{cite web \| url = http://www.internationalsteam.co.uk/trains/switzerland05.htm \| title = Switzerland's Waldenburgerbahn, 2010 \| work = www.internationalsteam.co.uk \| access-date = 2015-01-26}}
		1912	6	Narrow gauge steam locomotive	2276	{{whyte\|0-6-0\|T}}	Swiss Museum of Transport	Built for the Waldenburg railway; gauge {{RailGauge\|750mm\|lk=on}}; named Waldenburg
150px	Ge 6/6	1912-1929	402, 406, 407, 411, 414, 415	Narrow gauge electric locomotive		{{whyte\|0-6-6-0}}	Various locations	Built for Rhaetian Railway; gauge {{RailGauge\|1m\|lk=on}}

=United Kingdom=

Image	Built	Number	Type	SLM Number	Wheel arrangement	Location
class="wikitable"
150px	1895	2 Enid	Mountain railway rack steam locomotive	924	{{whyte\|0-4-2\|RT}}	Snowdon Mountain Railway
150px	1895	3 Wyddfa	Mountain railway rack steam locomotive	925	{{whyte\|0-4-2\|RT}}	Snowdon Mountain Railway
150px	1896	4 Snowdon	Mountain railway rack steam locomotive	988	{{whyte\|0-4-2\|RT}}	Snowdon Mountain Railway
150px	1896	5 Moel Siabod	Mountain railway rack steam locomotive	989	{{whyte\|0-4-2\|RT}}	Snowdon Mountain Railway
150px	1922	6 Padarn	Mountain railway rack steam locomotive	2838	{{whyte\|0-4-2\|RT}}	Snowdon Mountain Railway
150px	1923	7 Ralph Sadler	Mountain railway rack steam locomotive	2869	{{whyte\|0-4-2\|RT}}	Snowdon Mountain Railway
150px	1923	8 Eryri	Mountain railway rack steam locomotive	2870	{{whyte\|0-4-2\|RT}}	Snowdon Mountain Railway

Gallery

File:PalestineRailways-1946-ClassH-1.jpg|SLM built this 1050mm gauge 2-8-0 for the Hejaz Railway in 1912 and it was still at work on Palestine Railways in 1946.

File:NMR Locomotive 37395 at Coonor 05-02-27 21.jpeg|SLM locomotives are still at work in India on some heritage railways.

File:Finland SocieteSuisse2.JPG|Builder's Plate 2-6-0 Swiss Locomotive and Machine Works Societe Suisse Locomotive No 405 from 1885 at the Finnish Railway Museum

File:Sonderausstellung Bergbahnen - 03.jpg|Electric railcars built by SLM are used in the Pilatus Railway

File:Schweizerische Lokomotiv- und Maschinenfabrik Winterthur - 2-C-1 Schmalspur-Schnellzug-Lokomotive für die Holländischen Staatsbahnen auf Java.jpg|The express engines 4-6-2 SS Class 700 or PNKA C50 which were ordered by Staatsspoorwegen from SLM and Hartmann for line in Java, came in 1911-1914

File:USA Pikes Peak 099 SLM cog.jpg|Diesel hydraulic railcar on Manitou and Pike's Peak Railway, Colorado, USA

File:SBB Historic - F SLM 3 00676 A - Firmentafel in acht Sprachen.jpg|SLM works plates in 8 different languages