All the Alstom companies worldwide; STC; Siemens KWU worldwide; Ansaldo Italy; MAN-TURBO in Switzerland, Germany and Italy; BHEL in India and last, but not least, many small turbine repair companies as well as the Italian power plant operators ENEL rely on the technology, quality and reliability supplied by SM Weber.
We have pioneered new developments, together with ETH-Zurich and the Alstom Development Centre, in the vane area. Today we use electrical discharge machining on exotic geometries, pressure and suction sides with extreme twists, convex and concave surfaces in order to find and squeeze out even the last tiny bit of efficiency. We have equipped more than 500 large turbines worldwide with our EDM impulse wheels, nozzles, stators, MP and HP guide rings and guide lids. There have been no more instances of shroud detachment since 1989. As a result, the spark-eroded impulse wheel has replaced wheels welded from individual vanes as far as product quality, life expectancy, efficiency and costs are concerned. A highlight of the year 2006 – the fabrication of the nuclear power plant “Olkiluoto”, developed and built by Siemens POWER and with over 1700 mw. The MP guide ring required for this project was manufactured by SM Weber.