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2016
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Revamping of last furnace with composite electrodes
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2013/14
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Revamping of two furnaces with composite electrodes
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2011
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Revamping of one furnace with composite electrodes
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2010
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Start-up of 3rd casting implement for the production of Silocast
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2009
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Revamping of furnace No. 4 with new electrode system
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2008
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Comissioning of another baghouse filter with 400.000 m³/h capacity
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2004
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Improvement of the metal-transport by increasing the size of casting ladles
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2002
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The production of "RW-Füller Q1" takes the demands of high grade Mikrosilica. Increase of the storage capacity for 250m³
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2001
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Start-up of two automatic raw material preparation plants
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1999
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Start-up of a second baghouse with 400.000 m³/h. Increase of the production from 20.000 to 26.000 metric tons per year
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1998
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Change from VAW aluminium AG to Graphit Kropfmühl AG on October 1st
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1997
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Installation of tap hole de-dusting units to collect the fine dust
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1995-1996
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Start-up of two casting machines for Silicon-Metal. The high grade product "Silcocast" is selled to the Chemical Industry for the production of silicones
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1976
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Start-up of a filter baghouse to clean the off-gases (production of Silica-Fume) with a capacity of 800.000 m³/h
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1969
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The production is more and more changed to Silicon-Metal
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1955
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Extension of the furnace building and start-up of a 4th furnace
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1948-1951
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Start-up of three Ferrosilicon-furnaces with a total load of 17 MW
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1947
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The Vereinigte Aluminiumwerke (VAW) get the permission to produce Ferrosilicon (FeSi 45/ 75/ 90), which is needed in steel production
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