The mechanical engineering company Graffenstaden was an enterprise of the heavy industry in the Graffenstaden with Strasbourg.

The career/development of the enterprise is closely verb-attached with the history of Elsass Lorraine. After the lost war of 1870/71 France the Elsass must as so-called realm country to the German Reich transfer. Thus also the mechanical engineering company Andre Koechlin & Cie came. in and the machine workshop & in Strasbourg Graffenstaden into the German Reich. The two works are combined 1872 to the mechanical engineering company Graffenstaden.

The former work Koechlin in was created 1826 and placed steam engines, turbines, spinning mill, weaving mill and cotton machines herund starting from 1839 also steam engines.

The balance factory & which built above all decimal balances after a patent of a from the year 1821, was bought 1837 by the Strassburger mechanical engineering company, which shifted the workshop one year later with a staff from 40 workers to Graffenstaden, few kilometers south of Strasbourg. In the year 1846 the production began of dragging tenders, at 1856 also from locomotives.

After the collection of Elsass Lorraine 1871 by the German Reich many Natives of Alsace, who felt as Frenchmen, pulled into the area around Belfort. There 1872 the Alsacienne de Constructions , briefly, was opened to SACM. After the peace treaty of Versailles 1919 arrived Elsass Lorraine and concomitantly the mechanical engineering company Graffenstaden again at France and with the SACM are fused. The work in Belfort was operated to 1926 and taken over 1928 by Thomson Houston and Alsthom, the today's Alstom.

After the occupation of the Elsasses 1941 the work must supply locomotives of the series 44 and the series 52 obligatorily under the line of the Magdeburger machine tool factory (MWF) to the German National Railroad company. After the IITH world war the work is led again under French line.

1951 is built for the first time in the work diesel locomotives, the manufacturing is given up by steam engines against it around 1955. Diesellokomotiv production was continued until 1965.

Production numbers

After the fusion of the two works a common serial number counting with the number 2118 is taken up, since Koechlin built up to then 1,412 and Graffenstaden 705 locomotives. 1955 ended the building of steam locomotives with the serial number 8174. Since under 11 serial numbers no locomotives were supplied, the fused enterprise SACM had therefore built 6,042 steam engines.

The diesel locomotives built from 1951 to 1965 received their own counting starting from serial number 10001 and 20001. Thus one built among other things also the diesel locomotives of the Saarbahn, which arrived later at the railways. In the 10.000er-Bereich, mainly design B-dh, was reached the serial number 10199. With the 20000er-Nummern, design C-dh, only 23 machines are built.

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