General information
Center name
SSAB
Country
Publish Date
July 26, 2021
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 .
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Knives
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0 – 250 °C / 32 – 480 °F
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10 – 300 mm / 0.4 – 12.0 "
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Brown Coal - Ore
Old solution
Old solution
S237
Thickness
30 mm
Service life
950 hours
New solution
New solution
Hardox® 550
Thickness
30 mm
Service life
1100 hours
Key success factors
Improved service life