Lightest Strongest magnet I can buy

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Discussion Overview

The discussion centers around finding the lightest and strongest permanent magnet that can produce a magnetic field greater than 5000 surface gauss. Participants explore various options and considerations related to magnet types, including neodymium magnets and alternatives.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • Dale seeks guidance on purchasing a light yet strong permanent magnet with a magnetic field exceeding 5000 surface gauss.
  • Raul suggests considering an electromagnet created by inducing a charge on coils of wire, questioning if it would be too heavy for Dale's needs.
  • Dale clarifies the requirement for a permanent magnet and expresses interest in alternatives like magnet paper with a strong magnetic field.
  • One participant proposes that neodymium magnets may be the best option, noting that the effectiveness will depend on the magnet's geometry.
  • Another participant mentions that temperature range could be a significant factor in selecting a magnet.
  • A suggestion is made to consider magnets from old hard disk drives, which are noted to be strong.
  • One participant agrees that neodymium magnets could meet Dale's needs but emphasizes the importance of specifying working conditions, particularly temperature limitations.

Areas of Agreement / Disagreement

Participants generally agree that neodymium magnets are a suitable option for Dale's requirements, but there is no consensus on the best approach or the importance of specific working conditions.

Contextual Notes

Participants mention various factors that could influence the choice of magnet, including geometry and temperature range, but these aspects remain unresolved in terms of their specific impact on performance.

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Hi All,
I am wanting to buy the lightest, strongest magnet I can. Can someone please direct me or give me guidance on this issue? I am requiring a magnetic field of >5000 surface gauss. Any links or direction would be terrific,

Thanks in advance,
Dale.
 
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Why not make a magnetic field by inducing a charge on some coils of wire, or would that be to heavy for what you want it for?
 
Last edited:
Hi Raul,
Thanks for your quick response. I require a permanent magnet. Yes the electromagnet would be far to heavy unfortunately. If I could get something like magnet paper with a strong magnetic field. This would be a very good solution.

Regards,
Dale.
 
Seems lie your best bet would be a neodymium magnet, but the ratings of you desire/what you get, would depend on the geometry of the magnet.

These might be your best bet, check what dimensions they have.

https://www.kjmagnetics.com/products.asp?cat=11
 
Temperature range might matter.
 
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Hi Dale. Yes, I think one neodymium magnets can fit your need as of permanent magnets. However, you need to specify your exact working conditions as there will be limitation on working conditions of the magnets, especially for working temperature.
 

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