Knife for plastic shredder with longer service life

General information
Name of center
SSAB
Description of the case

To crush plastic is originating from the selection of a recycling plant.

The steel that was used in the past was tool steel   ( DIN 1.2379 ). The rotation speed of the shredder is 600 rpm, approx. The problems are cracks and important chipping on the edges that means complicated regrinding. Replaced with Hardox-600.

Dimensions and Quantities:

Thickness 15 mm. The shredder has 6 rotating cutting edges (45º) and 4 fixed (15 º). The sizes are 396 x 70 and 396 x 46 respectively.

Service Life and Status:

Cutting edges in DIN 1.2379 have a service life of a week, after regrinding is necessary; Hardox-600 has a service life of  9 days before regrinding. The turnover could be 5 Tn / year.


End customer
Industry
Recycling
Raw material processed
Plastic
Wear part
Equipment
Shredders / Knives
Temperature
0 – 250 °C / 32 – 480 °F
Processed material size
10 – 300 mm / 0.4 – 12.0 "
Solution
New solution
Hardox 600
Service life
Similar to previous
Key success factors
Improved service life
20%
180