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diymag 40x20mm super strong neodymium disc magnet, permanent magnet disc, the world's strongest and most powerful rare earth magnets - one piece logo

DIYMAG 40X20Mm Super Strong Neodymium Disc Magnet, Permanent Magnet Disc, The World'S Strongest And Most Powerful Rare Earth Magnets - One Piece Review

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Average

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Revainrating 4 out of 5  
Rating 
3.9
🧲 Industrial Magnets, 🧰 Material Handling Products

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Details

MaterialNickel,Silver
BrandDIYMAG
ShapeRound
Number of Pieces1

Description of DIYMAG 40X20Mm Super Strong Neodymium Disc Magnet, Permanent Magnet Disc, The World'S Strongest And Most Powerful Rare Earth Magnets - One Piece

High Quality- Made From Strong Neodymium-Iron-Boron Alloy (Ndfeb) And Have A Stylish Nickel Coating (Ni-Cu-Ni) With An Appealing Silver Surface - All The Magnets Are Magnetized Axially And Have A Maximal Operating Temperature Of 80 Degrees Celsius. Extreme Durability - Nickel-Copper-Nickel Triple Layer Coating For Superior Durability. Multiple Uses - These Magnets Are Ideal For Diy Craft Projects,Science Project Magnets. Use These Rare Earth Magnets For Anything, Including Finding Studs In Your Wall, Fastening, Lifting,Hanging Objects, Various Projects & Presentations, Education, & More. Dimension - Diameter 40Mm X Thickness 20Mm(Approx.1.57"X0.79" ).Tolerances: (+/-0.2Mm) X (+/-0.2Mm).

Reviews

Global ratings 10
  • 5
    3
  • 4
    3
  • 3
    4
  • 2
    0
  • 1
    0

Type of review

Revainrating 3 out of 5

Didn't work for myself.

I got them to break into my safe NC there's tons of videos showing u how but they didn't get it done. They are pretty strong but by no means are they more than 500 lbs strong. Maybe half of that. I'm only 165 lbs and in my 50s and I pull them off with them stacked on top of each other and I learned my lesson with buying things that I'm not positive with the measurement they are using. They should list as a little bigger than a 50 cent peice and smaller than silver dollar. Now don't get me wrong

Pros
  • Multiple Uses - These Magnets Are Ideal For Diy Craft Projects,Science Project Magnets. Use These Rare Earth Magnets For Anything, Including Finding Studs In Your Wall, Fastening, Lifting,Hanging Objects, Various Projects & Presentations, Education, & More.
Cons
  • Expensive compared to other magnet options

Revainrating 5 out of 5

Strong magnets, hand pinched!

Got the round ones. Pretty strong for their size. I knew this would happen eventually but it's still pretty painful. One of the little suckers slipped out of one hand and snapped together with the other one which was in my other hand. Thankfully one of my fingers got in the way and more damage wasn't done. These things are no joke. Fortunately neither one broke and I eventually pulled them apart. Definitely not a toy and definitely to be handled with care! Also, NEVER put one of these next to a

Pros
  • Small and strong
Cons
  • Prone to shattering if dropped or mishandled

Revainrating 4 out of 5

Powerful Magnets good for me

I purchased these magnets to erase old hard drives. I was very happy with the magnets. My only complaint was in the packaging as the two magnets were shipped with only a small ring between the magnets. It was extremely difficult to separate the two magnets. If I were to repurchase the magnets, I would purchase two packaged separately.

Pros
  • Way stronger than expected…. Like … way stronger. Literally held me from the ceiling.
Cons
  • May attract metal objects, causing potential safety hazards

Revainrating 3 out of 5

Broken upon delivery

It was delivered broken in the package.Revain quickly refunded my money.They seemed to be very strong magnets. You wouldn't want to catch your finger between them.

Pros
  • Exceptional durability and strength
Cons
  • Potential to damage walls and other surfaces if not used carefully

Revainrating 5 out of 5

Strong Magnets - Good !

I liked the size as they are small enough to handle and strong enough to have some serious fun with. Sorry they ran out and hopefully they will purchase another batch and sell them again for this price range. Due to the strength of these magnets it would be nicer to have at least a 3/8" thick Plastic Spacer/Separator between the two magnets. Also package in a stronger Card Board Box (heavy duty card board) Using the foam holder and end caps so that the magnets are isolated from other magnets…

Pros
  • Impeccable accuracy for measuring devices
Cons
  • Requires special cleaning and maintenance procedures

Revainrating 4 out of 5

Scary powerful magnets…

They are everything they claim to be. If you get the 2 stuck together… watch out, keep your fingers out of the way because you can get hurt easily. And be prepared for a fight to separate them.My only complaint is that I wish they had a thin plastic or rubber case option, because they hit so hard when they get near metal, and it’s easy to crack and chip them. Just a thin layer of hard plastic or, like the wall thickness of a plastic bottle, would prevent chipping and cracking and have a…

Pros
  • Rare Earth Magnets
Cons
  • Difficult to separate once stuck together

Revainrating 4 out of 5

Decent magnet - my new review

Very strong magnet. It just wasn’t strong enough for what I was using it for, which was to take an store alarm off a sweater that I had lost the receipt for.

Pros
  • Can support small and large businesses alike
Cons
  • Unsuitable for mass production due to production time and cost

Revainrating 5 out of 5

Can't separate them

I can't tell you how impressed I am I cannot remove them from each other however so I can't use them but not being able to remove them from each other has got me giddy I've clamped them in advice I've hit them with a hammer tomorrow I'm going to cut them in half with a cutting torch because I can't separate them I'm not a weak guy either

Pros
  • Can hold multiple items at once
Cons
  • Not suitable for educational purposes

Revainrating 3 out of 5

Strong but questionable quality

Works very well at close range but anything above an eighth of an inch causes magnetic strength to dwindle and fall off quickly. Initially impressed but suppressing initial disappointment in quality due to perceived strength of magnetism, will look elsewhere for next ones as I am down to one after one usage.

Pros
  • Promotes innovation in product design
Cons
  • Expensive to replace if lost or damaged

Revainrating 3 out of 5

It's not a toy! in my review

I got one of mine chipped, they definitely are not toys to be played with. If so very carefully. I would buy again however not in a chipped state, I know they are brittle without being careful. But I didn't expect to see one chipped right out of the box. HOWEVER, if you buy these use with caution. These magnets ain't no joke for the strength they have. Overall I've give 3 stars because of the chipped magnet. Otherwise it was a solid purchase.

Pros
  • Magnetic and non-magnetic properties available
Cons
  • High risk of injury if not handled by experienced users