I was wondering where one buys magnets these days? I used to see them sold more when I was a kid back in the 1970's. Some were horseshoe shaped and some were like bars. (Yes, I have the kind that are on trinkets that are on the fridge, but these are way too wimpy.) Where do you find potent ones?
Go to the scrapyard and look for an old discarded hi-fi speaker, take it home, unscrew the back, whip-out the speaker, chisel off the magnet .... Bob's yer uncle!
Here you go. Ive bought quite a few from these folks, but never the really strong ones. Great catalog of incredibly strong and dangerous magnets.
k&j magnetics
This is a very helpful table they provide but is tough to find on their site:
pull force table for available magnets from k&j
k&j magnetics
This is a very helpful table they provide but is tough to find on their site:
pull force table for available magnets from k&j
QUOTE (Empress Palpatine+Nov 23 2007, 07:01 PM)
I was wondering where one buys magnets these days? I used to see them sold more when I was a kid back in the 1970's. Some were horseshoe shaped and some were like bars. (Yes, I have the kind that are on trinkets that are on the fridge, but these are way too wimpy.) Where do you find potent ones?
Ebay has some pretty powerful ones. You can get pretty much anything there
!
- Gehn
Ebay has some pretty powerful ones. You can get pretty much anything there
!- Gehn
Magnets out of busted microwave ovens would be about the best.
Thats where the superstrong magnets from mail come from.
Thats where the superstrong magnets from mail come from.
Thanks guys...I'll check these out.
The most powerful common magnets are neodymium. I have a bunch of spherical magnets like these
http://www.kjmagnetics.com/products.asp?cat=12
The 1 inch spheres are so powerful that you must jam your thumb betweem them and pry very hard to separate them. Definitely dangerous. And, if you let them snap back together they can shatter.
An Experiment: If you drop a 1' neodymium sphere into a vertical copper pipe, it will move slowly through the pipe due to the currents it induces in the pipe. (lenz effect). I call it an anti-gravity tube. very impressive.
Another source of neodymium is hard disk drive actuators (head positioners). There are many articles on the web about how to remove them intact (difficult). I never throw out an old drive without taking it apart first.
Another source would be a local electronics surplus store. They may have old disk drive magnets.
http://www.kjmagnetics.com/products.asp?cat=12
The 1 inch spheres are so powerful that you must jam your thumb betweem them and pry very hard to separate them. Definitely dangerous. And, if you let them snap back together they can shatter.
An Experiment: If you drop a 1' neodymium sphere into a vertical copper pipe, it will move slowly through the pipe due to the currents it induces in the pipe. (lenz effect). I call it an anti-gravity tube. very impressive.
Another source of neodymium is hard disk drive actuators (head positioners). There are many articles on the web about how to remove them intact (difficult). I never throw out an old drive without taking it apart first.
Another source would be a local electronics surplus store. They may have old disk drive magnets.
Hard drive magnets are awesome, but the best fun I've had with dead hard disks is at the shooting range! 
If you hit the spindle motor dead center with a jacketed round, wonderful things happen!
If you hit the spindle motor dead center with a jacketed round, wonderful things happen!
I like shooting watermelons with a 30-06 hollow point. It turns into spray.
QUOTE (meBigGuy+Jan 1 2008, 05:21 AM)
I like shooting watermelons with a 30-06 hollow point. It turns into spray.
Your Politically Correct pink mist, eh? {shudder}
Your Politically Correct pink mist, eh? {shudder}
QUOTE (Empress Palpatine+Nov 23 2007, 07:01 PM)
I was wondering where one buys magnets these days? I used to see them sold more when I was a kid back in the 1970's. Some were horseshoe shaped and some were like bars. (Yes, I have the kind that are on trinkets that are on the fridge, but these are way too wimpy.) Where do you find potent ones?
Don't forget the ever famous claimed Ex-UFO researcher ROBERT LAZAR who now lives, near Tijeras(Sandia Park), New Mexico.
He operates a famous website(United Nuclear) which has some of the worlds largest, strongest consumer available magnets on his website.
Neodymium Magnets
NdFeB
Grade N45
Ni-Cu-Ni Plated
http://www.unitednuclear.com/magnets.htm
Super Magnet #33
3" x 3" thick cylinder
Pull force = 800 pounds
Happy New Year!
P.S - Be careful not to magnetize the iron in your blood..lol jk
Don't forget the ever famous claimed Ex-UFO researcher ROBERT LAZAR who now lives, near Tijeras(Sandia Park), New Mexico.
He operates a famous website(United Nuclear) which has some of the worlds largest, strongest consumer available magnets on his website.
Neodymium Magnets
NdFeB
Grade N45
Ni-Cu-Ni Plated
http://www.unitednuclear.com/magnets.htm
Super Magnet #33
3" x 3" thick cylinder
Pull force = 800 pounds
Happy New Year!
P.S - Be careful not to magnetize the iron in your blood..lol jk
I got one the old world war 2 radar magnets the horseshoe type.
To heavy to ship I got it a flea market for 5$
Amazing power of magnetic force.
Stainless steel tools can be mag to about 1.5 feet with the other end another mag such as steel.
To heavy to ship I got it a flea market for 5$
Amazing power of magnetic force.
Stainless steel tools can be mag to about 1.5 feet with the other end another mag such as steel.
Have any of y'all ever magnetized a steel rod by striking? I did that in a mechanic's shop that I worked for when no one could find a telescopic magnetic pick-up tool, and they were amazed! I was called 'Mr. Wizard' for a short time, alas... 
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