Cc/neu Motors

[killajb]

I'm not 100% sure, but I believe that is company Patrick was referring to (without calling out names) on the previous page.

Castle products are priced lower that most for the performance they offer in return. I think that if N50EH magnets were available, more companies would offer them or at least provide boastful specification to make up for the higher costs.

As well, you'd be able to buy them as raw material from places like this: http://www.kjmagnetics.com/specs.asp

The best you can do for our intent and purposes (from this chart, at least) would be N38UH.

[Pdelcast]

Originally Posted by killajb

I'm not 100% sure, but I believe that is company Patrick was referring to (without calling out names) on the previous page.

Castle products are priced lower that most for the performance they offer in return. I think that if N50EH magnets were available, more companies would offer them or at least provide boastful specification to make up for the higher costs.

As well, you'd be able to buy them as raw material from places like this: http://www.kjmagnetics.com/specs.asp

The best you can do for our intent and purposes (from this chart, at least) would be N38UH.

Correct. Anyone who claims an N50 magnet that handles more than 120C is not being "accurate... ". They are either using a lower power magnet, or a lower temperature magnet.

So, I would be skeptical of any other claim made by someone who claimed an N50EH magnet.

BTW - We have tested the magnet in question, and it isn't an N50EH as claimed. In fact, it has lower BH than our N38UH magnet, AND starts deteriorating at about 150C with no applied field (which means it is a 120C magnet.) A representative of the company in question made these claims to me (180C N50 magnet) on Friday at the IRCHA show, and I was extremely skeptical. So I tested some magnets from their motors this weekend, and wasn't surprised when they didn't even come CLOSE to what was falsely claimed by this company. I would guess that it is a N38H magnet -- fairly cheap and available magnet.

They may be being misled by their supplier -- but if that were really the case, I'd be worried about a company that builds motors but can't test magnets...