General Question

xgunther's avatar

Where can I find STRONG magnets?

Asked by xgunther (446points) August 23rd, 2007

For my physics class project, I want to make a vehicle propel down a track using magnets. Similar to Superman: The Escape at Six Flags Magic Mountain. Only on a much smaller scale (obviously).

Where can I find some STRONG magnets? My budget is $1,000

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9 Answers

jrpowell's avatar

I would Google "neodymium rare earth magnets"

I have never bought them online so I can't provide a link (that I trust) to a specific place to buy them.

TruMobius's avatar

Hobby lobby .... you can buy these tiny magnets (~1 cm) and slightly larger ones that are super strong (pulls/push each other at about an inch)

soethe6's avatar

If you're looking for something big and bulky but quite strong, try going to an aircraft junkyard. Old radar systems used these huge U-shaped magnets that are quite powerful. Otherwise, an electro-magnet would probably be the way to go.

mistermister's avatar

I can suggest K&J; Magnetics (http://kjmagnetics.com/)
I've used them several times to buy tiny magnets to hold works on paper on the wall (without putting holes in the works). They carry a nice variety of magnets.

Jill_E's avatar

Try a local craft store, ask the worker there, they will lead you to a area of magnets. I bought some strong ones there.

PeteTheNotSoGr8's avatar

I can recommend the rare earth magnets. The electro magnets actually tend to not provide as much magnetic power with a reasonable amount of current. Though it usually is fairly easy to generate a large electro magnet, if you get on the order of a Tesla the power concumption becomes very prohibitive fort anything battery powered or otherwise current limited. If you need a way to switch on/off by far the easiest way would be the electro magnets - a permanent magnet switcher is a project in itself.

pattyb's avatar

earth neo magnets are super strong, get them cheap on ebay, just do a search .

Hawaiiguy's avatar

if its a school project perhaps you can inquire about renting the magnets as well.

PeteTheNotSoGr8's avatar

check out http://dealextreme.com/products.dx/gift.ideas LIst on this page is a pack of rare earth for insanely cheap. Pretty small so maybe not that strong.

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