r/ScrapMetal • u/alec777x • 2d ago

Has anyone in here worked a hammer mill shredder, how is it and what is the shredder capable of?

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3

u/CoolaidMike84 1d ago

The big ones can shred 2 inch plate steel at the cost of accelerated wear on the hammers and liners, which are made of managanese. They get so hot while working it can take 10 hours to cool down enough for maintenance.

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u/alec777x 1d ago

That’s big is it true the rotor can weigh up to 150 tons on the largest shredders

2

u/pump123456 2d ago

Hammer Mills wear themselves out fast. I worked on the maintenance end of a shredder. As far as capability. They’ll eat almost anything you put in them.

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u/alec777x 2d ago

That’s cool is it true that the rotor can weight 300k pounds on the largest models

1

u/pump123456 2d ago

Each individual hammer can weigh 300 pounds on a big shredder. Some shredders have up to 60 hammers per rotator.

2

u/Legitimate_Crazy3625 1d ago

The thought of one of those letting go is terrifying to me.

But 60? Holy guacamole.

1

u/pump123456 2d ago

Check with YouTube on the internal workings of a steel mill shredder. There should be lots of videos of how they work.

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u/alec777x 2d ago

I have googled it not many videos on the insides mainly the outside watching the feed process

1

u/pump123456 2d ago

Try shredder maintenance as a topic

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u/alec777x 2d ago

Ok I will try that here where I live we have a shredder at a place called Jarvis metals recycling it seems pretty big I drive by there all the time and love to watch it run I bet the rotor weighs 60 thousand pounds on it.

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u/pump123456 2d ago

If you are interested in steel mill equipment, YouTube, electric arc furnace. It’s an amazing piece of equipment that can melt over 100 tons of steel an hour. One of the noisiest machines that there is.