Got magnets? 1200 lbs of force
Ron Czapala
Posts: 2,418
If you are looking for some powerful magnets, check here: http://www.kjmagnetics.com/proddetail.asp?prod=BZX0ZX0Y0-N52
This one has over 1200 lbs of pull force (for a mere $1027). It is a 4" x 4" x 2" Neodymium N52 grade.
This one has over 1200 lbs of pull force (for a mere $1027). It is a 4" x 4" x 2" Neodymium N52 grade.
You are looking at the largest, most powerful, most dangerous magnet we carry. At over 1200lbs of pull force, it is likely the strongest magnet available anywhere! These HUGE blocks are no joke. They are extremely powerful and very dangerous, and as such must be handled with extreme caution.
They will pinch hard enough to break the skin and could even crush if you get between two of them or one and a piece of metal. Much worse than getting a hand slammed in a car door. They are heavy, sturdy, and unbelievably strong.
Once a block this large is attached to a metal surface it will be impossible to remove it.
This magnet is not a toy and should only be handled by professionals. We recommend always having at least one other person help you handle this massive block. We use a team of at least three.
Comments
Not only that, but they must have to ship that thing in a really big carton. Even then, though, whatever magnetic-sensitive devices unfortunate enough to share a UPS truck with it could be in jeopardy.
-Phil
Pretty sure it is shipped in the wood container (bottom picture) and then in a bigger box/crate...
How 'bout getting another magnet just like it and jacking it in from the other side of the metal, approaching poles like to like... would that work?
Geez, what's with all the death and destruction? I'd use the magnet to bring about world peace and end hunger.
I'm not sure how to do that with a magnet... Maybe go to a convention for "wealthy people with pacemakers" and hold them hostage until they donate all their money?
Or maybe use the magnets to make giant speakers for a Bono concert?
What about making a magnetic region that confuses migratory birds to fly in a circle. Then, you could raise geese and the like very inexpensively, anywhere. World hunger is solved.
How about putting a bunch of these in African battle fields. Then, whenever people shoot at each other the bullets are deflected and miss their targets. So people stop shooting at each other. World peace solved.
I was thinking more along the lines of an electrical application like a wind powered generator or small scale hydroelectric generator.
I've got some pretty big ones I pulled out of two old polygraph machine from the 70s. The machine was like the size of a person. We were storing because we previously had some museum space, but after that got cut they were just clogging up the lab. So we gutted them and finally got the university to haul them away.
Each needle on the polygraph was nested between a pair of magnets, bolted to a metal frame so they appeared as giant horseshoe magnets. I think each one weight around 7lbs. And if you got them stuck together they were NOT coming apart. I was definitely afraid of getting my finger caught between them.
There's that word again. Like to wager?
It's quite possible. Heat it above the Curie temperature and it will fall off. It won't be a magnet anymore, but as big as that thing is, that might be better anyway. Safer, at least.
That might not be as easy as you think, that magnet weighs over 3 lb and it's going to be locked onto another piece of metal at least as large. However, there are mechanical ways to do a direct separation; 1200 lb sound like a lot of force, and it is compared to human strength, but it's not that big a deal for machines. Once you get the magnet off of the metal (hint: self-locking side grippers and winch or come-along) far enough to insert shims, you're pretty much golden.
1200 lb for the right machine is easy. But you are going to have to find a non-magnetic gripper else you'll need another machine to .....
In truth I'd never have to get that beast off anything because I wouldn't have it anywhere near me.
As you say, 1200 lbs isn't a lot for a machine, but similarly 3 lbs of metal isn't a big deal to heat up if you have the right tools. An oxy-acetylene torch with a good-sized rosebud tip would do it and they're common enough. I have one in my own shop. When I had some 2" x 0.5" disk magnets arrive stuck together, I made a scissor-like kludge out of a couple of pieces of wood and a bolt for a pivot, with a hole to fit the magnets bored through the wood near the bolt end so I'd have some leverage. They are far easier to slide apart sideways than they are to pull straight apart. The trick is to keep them apart and for that thing it would be a trick indeed.
Ouch!!! Glad I didn't order any monster magnets. (might get some of the less powerful ones though...)
Have you pulled a 3.5" hard disk apart? There are great little magnets inside for the head assembly. Very strong and I am sure you could pinch skin easily.
Yes. They are thinner than a dime and glued to non-ferrous brackets but even they can give you a good pinch!