Why do shredder hammers crack?
Why do shredder hammers crack?
(OP)
We have experienced elongation and cracking of cast Hadfields manganese steel hammers. Some hammmers are fine and some crack after a short service life. Can anyone shed any light on whether this is a problem with the casting or the operation of the shredder.





RE: Why do shredder hammers crack?
RE: Why do shredder hammers crack?
Do you have ammonia near the hammer or in the shredded material? Sabotage/accident is another possible cause, GALVALUME roofing and urine comes to mind.
Can you get a material spec which will lead you to the way it needs to be thermally stressed relived and test that?
Just some thoughts.
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RE: Why do shredder hammers crack?
RE: Why do shredder hammers crack?
You might get more information on the Metal and Metallurgy engineering forum.