Crusher knives with long service life

General information
Name of center
SSAB
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 .
End customer
Industry
Coal and energy
Raw material processed
Brown Coal - Ore
Wear part
Temperature
0 – 250 °C / 32 – 480 °F
Processed material size
10 – 300 mm / 0.4 – 12.0 "
Solution
New solution
Hardox® 550
Thickness
30 mm
Service life
1100 hours
Old solution
Old solution
S237
Thickness in old solution
30 mm
Service life in old solution
950 hours
Key success factors
Improved service life
180