Separating large neodymium magnets

[fatelook]

I love your videos! TY for making them!!

[yyhaoyue]

have u lose a finger so far?

[brainiac75]

@yyhaoyue:

Thank you for your concern but no :)

I saw the video where a guy lost a nail and fingertip with neodymium magnets before I bought a big magnet myself. I'm fully aware of the risks.

[mrmagnetsarecool]

Did you make that separating tool?

[brainiac75]

@mrmagnetsarecool:

Yes. I made it from scrap wood from a furniture factory. Hard wood is optimum for endurance but it could be made with softer and cheaper woods.

I didn't bother to sand it for a nice finish but it works :)

[mrmagnetsarecool]

@brainiac75 Looks great, I recently built one out of hard wood designed to handle large magnets. I kept your design in mind during construction. I have seen other splitter tools on YouTube that look insufficient to fully protect you and don't seem to take into account the fact that the magnet will flip to correct itself when the magnetic fields collide. These large magnets are no joke, no point in taking unnecessary risks.

[MrBurnTec]

i just trow my magnets up in air and let them do the work

[SeanACampbell]

@MrBurnTec That sounds dangerous lol

[MrBurnTec]

@SeanACampbell duck and cover

[SeanACampbell]

@MrBurnTec Hahahaha like a boss.

[hardstyle905]

@MrBurnTec lol

[Walkingdeadman1991]

At about what is the maximum temperature magnets from magnetportal can withstand?

[brainiac75]

,@Walkingdeadman1991 :

'Normal' neodymium magnets like the ones from magnetportal shouldn't be used above 80°C (176°F). You can buy special neodymium magnets for higher temperature applications. They can be recognized by extra letter behind the grade - like N45M or N45SH. The highest I have seen is N33AH which can withstand 220°C (428°F) but it is only strength grade N33 (probably due to a lot of additives that ensure high temperature resistance but thins the neodymium-iron-boron composition).

[Walkingdeadman1991]

@brainiac75 thank you

[MikHartwell]

Excellent! Just what I was looking for. I especially liked your advice about using gloves. Have you ever tried some oil on the magnet surfaces if you know you'll need to separate them later? (I need my two 120kg magnets to touch each other, or with a washer between them).

[brainiac75]

@MikHartwell :

Glad to help! I haven't tried oil on the magnets. It could help a little I guess but I think the advantage would be too small to make up for the mess it could create. Most - if not all - of the oil would be squeezed out between these magnets. I would prefer a very thin spacer/washer inbetween of a relative soft material like wood or plastic. Metal will scratch the magnets badly when separating these magnets using the shown method. Good luck with your project.

[anonysquirrel]

What if there were no spacer? Would you ever be able to pry the magnets apart?

[brainiac75]

@anonysquirrel :

Yes, this splitter tool is large enough to split them without a spacer. It takes much more effort and is quite scary because the forces involved with the magnets being much closer in the whole proces are so much larger.

I don't recommend it. It is more dangerous and the magnets I did it with got scratched in the protective layer. I may make a video where I split two magnets with and without a spacer to show the difference if people insists?

[jmmahony]

@brainiac75 Yes, please make a video showing that!

[Rousland1]

What's the music in this video ? Thanks

[brainiac75]

@Rousland1 :

It's called 'White' by Kevin MacLeod and available for free and royalty free at incompetech. C()M

[spectrospirit]

So... this was excellent, i managed to have two of my magnets stuck together and i've been fooling around with these ever since they got stuck.

I decided that i wanted to separate these so i did a quick search on youtube because i was to lazy to think at the moment, and ended up here.

My magnets can lift 60 kilograms and your solution made it easy for me with a little effort to make my own splitter, now my magnets are separated :)

It's a good ad ^^

How much can your magnets lift?

[brainiac75]

@spectrospirit :

Glad to help. That was the whole purpose of this video :o)

The magnets in this video are advertised at 270 kg each, which is measured on a machine that pulls really thick iron cylinders at top and bottom of the magnet away from each other. In real life I wouldn't trust them over 200 kg but that's still a lot of pull force!

[Zsakf0s]

I always wonder how strong those magnets...:)

[skadogg22]

Very clever! Did you come up with those tricks?

[brainiac75]

@skadogg22 :

The splitter: no, I watched the one that robgallagher (magnetnerd) made, scaled it up and added a few small improvements.

The combiner: yes, that is my own trick.

Thanks for watching!