Description of the case
Lignite crusher knives in Hardox 550. In coal power plant. The rotational speed in the crusher is about 230 rpm. 2 x 6 pairs of wings. Dimensions: 700 mm x 450 mm for each wing. Previously: St 37 with hard facing. Service life 950 hours. New solution: Hardox 550, 30 mm. Service life 1100 hours .