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Gold Prospecting
Prospecting Equipment
Rare Earth Magnets
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<blockquote data-quote="XLOOX" data-source="post: 642024" data-attributes="member: 16174"><p>Some are more brittle than others but ALL rare earth magnets are brittle - it is just how they are made - by sintering powdered metal. </p><p></p><p>Some come in a protective cup and are called Pot Holders.</p><p></p><p>I would suggest 20-30mm dia by 5mm thick with 5mm countersunk hole & N48-N52 strength .</p><p></p><p>FYI I have attached a rare earth magnet on the pick blade itself as shown in this post</p><p></p><p>[URL unfurl="true"]https://www.prospectingaustralia.com/threads/detecting-tips.38037/post-623472[/URL]</p><p></p><p>It has been there 3 years no prob because it has the mild steeel washer on top. Sides are still exposed. Not as protective as the pot holder typr & no doubt it will break one day but at $20 for 5 from ebay I can live with that.</p></blockquote><p></p>
[QUOTE="XLOOX, post: 642024, member: 16174"] Some are more brittle than others but ALL rare earth magnets are brittle - it is just how they are made - by sintering powdered metal. Some come in a protective cup and are called Pot Holders. I would suggest 20-30mm dia by 5mm thick with 5mm countersunk hole & N48-N52 strength . FYI I have attached a rare earth magnet on the pick blade itself as shown in this post [URL unfurl="true"]https://www.prospectingaustralia.com/threads/detecting-tips.38037/post-623472[/URL] It has been there 3 years no prob because it has the mild steeel washer on top. Sides are still exposed. Not as protective as the pot holder typr & no doubt it will break one day but at $20 for 5 from ebay I can live with that. [/QUOTE]
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Gold Prospecting
Prospecting Equipment
Rare Earth Magnets
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