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Beware of the Neodymium

uaudio

uaudio

Apr 11, 2008
921
6
Arizona
#1
Sort of off topic, but everyone's favorite light driver magnet seems to have crushed this guy's finger.

He ordered four N45 blocks - for who knows what reason - off the Internet. They came in four separate packages with several inches of surrounding material. When he took them out of the package...positive attracted negative from 20 inches away and his finger was in the way.

"He is lucky that he only lost a finger tip as opposed to his whole hand. The block Neo below is about 4" by 2" by 2" N45 with a pull force of around 700 lbs (320 kg). The disk is about 3" dia. by 2 1/2" thick N45 with a pull force of about 400 lbs (180 kg)."

http://www.magnetnerd.com/Neodymium Magnets/Dirks Accident.htm

(warning, sort of gory)
 
#5
no i think the point is that neo can be very dangerous i can think of many ways of which i could be feasable to be in the same situation eg. cleaning speaker cabs, replacing speakers etc. and i know that my world would be thrown upside down if i lost a finger, playing bass is all i know. thanks heaps for the article mate!!
 
#8
We used to use neodynium iron boron magnets on the rotors of some powerful wind turbine alternators that we manufactured.

Yeah, they're VERY strong and a total pain to pull apart if they got stuck together. I have had my skin pinched between the magnets a few times and it sucked!

They were powerful enough to erase a cassette tape if it got too close. I was told that they could wreck the strip on a credit card if they came in contact, and from what I have seen... I don't doubt it one bit.
 
#10
photo%20magnets%20wth%20nail%20+%20measurements%201024-768.jpg


:atoz:
 
#16
Yeah, the combination of their incredibly strong magnetic properties with the relatively small size and light weight of the magnets (due to their strength) makes them much more dangerous than one might think. I have no idea the exact numbers, but to compare... Traditional ferrous (or other material) magnets that are just as strong would have to be much bigger and heavier... not as easy to move. Or they'd be small and light but not nearly as magnetic. Anyway yeah, be careful.

Brian
 
#19
What they fail to adequately cover in that article is the sheer maliciousness of neodymium. It cannot be blamed for its strength any more than we can be blamed for wanting light speaker cabinets. But the raw cold-hearted misanthropy and willful malevolence of that vile mineral can never be excused.
 
#20
bongomania said:
What they fail to adequately cover in that article is the sheer maliciousness of neodymium. It cannot be blamed for its strength any more than we can be blamed for wanting light speaker cabinets. But the raw cold-hearted misanthropy and willful malevolence of that vile mineral can never be excused.
Click to expand...

Curse you and the rest of your rare earth metal ilk. It has been said that you repel sharks...is it because they fear you and the physical reaction you may trigger behind their beady eyes, or do they just they despise you?
 

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