History - RW silicium GmbH

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