I didn’t know Neodymium magnets will shatter!!

[Pilatus]

I bought 3 Neodymium magnets to place on the combine so that I can put the guard lock spanner’s
on them.
When I got the magnets I putting them close together , then to my surprise there were some sparks as the magnets grabbed each other and some of them shattered into several pieces!!!
I have attached a screenshot of the ones I purchased.

 

[clbarclay]

Some manufacturers are much better at making guard locks that don't awkwardly need special tools to operate the machine than others.

I have bought neodymium magnets from them in the past, but not experienced that.


I am left wondering about the logic of guard lock keys. Having them conveniently placed near a lock is probably no better from a health and safety perspective than the ones I can open with a closed penknife or my bare hands. In which case you might as well modify your locks so they don't need a special tool.

Shouldn't guard locks be kept somewhere like on the key ring with the ignition key, so that the machine should have to be switched off before you can open the guards?

 

[Pilatus]

Some manufacturers are much better at making guard locks that don't awkwardly need special tools to operate the machine than others.

I have bought neodymium magnets from them in the past, but not experienced that.


I am left wondering about the logic of guard lock keys. Having them conveniently placed near a lock is probably no better from a health and safety perspective than the ones I can open with a closed penknife or my bare hands. In which case you might as well modify your locks so they don't need a special tool.

Shouldn't guard locks be kept somewhere like on the key ring with the ignition key, so that the machine should have to be switched off before you can open the guards?

Many thanks . To avoid confusion the type of spanner I am on about is in the attached screenshot , I have a habit of losing them on odd occasions

 

[clbarclay]

What sort of guards is it used for?

 

[David.]

Claas machines. 13mm plus 8ml hex.
Coincidentally, mine went walkabout Monday.

 

[Exfarmer]

I bought 3 Neodymium magnets to place on the combine so that I can put the guard lock spanner’s
on them.
When I got the magnets I putting them close together , then to my surprise there were some sparks as the magnets grabbed each other and some of them shattered into several pieces!!!
I have attached a screenshot of the ones I purchased.

I found that out years ago when making a wooden garden gate closing to a steel post. As I wanted something simple I thought screwing a neodynium magnet to the gate would be the answer. Instead as soon as i put the slightest tension on the screw it just shattered the magnet

 

[David.]

Are these what used to be called Magnadur magnets?

 

[GEMS]

Be careful putting these magnets near electronics/phones etc ........and pace makers !

 

[TheTallGuy]

Neodymium magnets tend to be sintered construction and thus very brittle and prone to shattering. Some manufacturers will coat them in a nickel alloy to reduce the risks, but for cheap magnets it's more of a cosmetic coating than a practical one.

 

[TripleSix]

They also burn.
And release poisonous fumes