For more than three years Voith SkyTop doctor blades have been used on the center press roll of the paper machine in Bruck. The application of SkyTop on the center roll significantly helps in achieving improved paper machine performance. Doctor contamination was greatly reduced, and the running time was considerably extended.“With SkyTop blades we succeed in maintaining the roughness of the center ceramic roll for the entire roll cover width on the designated high level over several years,” explains Gernot Christöfl, Assistant Line Manager PM4.Norske Skog Bruck PM4 manufactures wood-containing graphic paper at machine speeds of up to 1,500 meters per minute.