Neodymium Disc Magnet - 12mm x 5mm

Product code: 20040

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$2.55buy 100+ itemsand save 24%

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Neodymium Disc Magnet - 12mm x 5mm

Rated 4.8 out of 5
Based on 6 reviews
Product Code 20040
Pull Force* 3.9 kg
Weight 4 gm
Style Rare Earth Disc magnet
Gauss 4225
Grade N42
Coating Nickel (NiCuNi)
Direction of Magnetisation Axially magnetised
Dimensions Height:5mm, Diameter:12mm
*Measured against up to 10mm mild steel.
Neodymium Disc Magnet - 12mm x 5mm

Neodymium Disc Magnet 12mm x 5mm Description:

This rare earth disc magnet has a diameter of 12mm and a height of 5mm. It is extremely strong despite its small size. This neodymium rare earth disc has a magnetic flux reading of 4225 Gauss and a pull force of 3.9kg. It is identified by the AMF magnet part number 20040.


Uses for our Powerful Rare Earth Magnetic Discs:

This permanent magnet has an N42 grade for extra strength. An N42 magnetic grading is one of the highest magnetic grades. This provides for a strong magnetic holding power in comparison to a magnet with the same dimensions but lower grade.
Their compact form allows them to be easily recessed into gyprock, wood or chipboard for a uniform surface without weakening the structural integrity of the substrate material. This can be a fantastic way to hold doors firmly closed. Use in conjunction with a metal strike plate on the opposing door frame for the ultimate DIY solution.
Due to their size these magnets are suitable for a huge range of applications such as DC motors, model making, craft projects, home-made fridge magnets, jigs, production line assembly and many more.

 

Neodymium Disc Magnet - 12mm x 5mm (20040)

Grade
N42 N/A
Max Operating Temperature °C
<=80 N/A
Remanence Br(T)
1.3-1.35 N/A
Remanence Br(kGs)
13-13.5 N/A
Coercivity bHc(kA/m)
>=836 N/A
Coercivity bHc(Oe)
>=10.5 N/A
Intrinsic Coercivity iHc(kA/m)
>=955 N/A
Intrinsic Coercivity iHc(Oe)
>=12 N/A
Max Energy Product(BH)max(KJ/m)
318-350 N/A
Max Energy Product(BH)max(MGOe)
40-44 N/A
Grade N42 N/A
Max Operating Temperature °C <=80 N/A
Remanence Br(T) 1.3-1.35 N/A
Remanence Br(kGs) 13-13.5 N/A
Coercivity bHc(kA/m) >=836 N/A
Coercivity bHc(Oe) >=10.5 N/A
Intrinsic Coercivity iHc(kA/m) >=955 N/A
Intrinsic Coercivity iHc(Oe) >=12 N/A
Max Energy Product(BH)max(KJ/m) 318-350 N/A
Max Energy Product(BH)max(MGOe) 40-44 N/A

NB: Ranges are indicative for product category, please check individual products for specic values within that range.

The most common coating for Neodymium magnets is Nickel + Copper + Nickel (Ni + Cu + Ni). This coating offers the magnet relatively good protection from corrosion and passive applications. If the magnet will be exposed to moisture or liquid then consider the use of an organic coating such as Epoxy. A hard wearing coating, Epoxy is suited to applications where the magnet will come under some friction or knocking.

Magnets are readily available in Blocks, Discs, Cylinders & Rings. AMF Magnetics specializes in the supply of short-run prototype magnets including Arc Segments, various magnetic orientations etc. If you need a magnet size that we don't carry in stock, submit a Design-a-Magnet enquiry for a quote on your custom magnet design.

Neodymium magnets are offered in several different grades. The first section N30-54 has an operating temperature of up to 80 degrees. Most of our stock only goes up to N38. The second section, denoted with the "M" prefix after the grade has an operating temperature 100 degrees. After this the grades are "H", "SH", "UH" & "EH". In order for the magnet to withstand a higher operating temperature, during production more of the raw material PrNd is incorporated as these elements have a naturally occurring resistance to high temperatures.

average rating 4.8 out of 5
Based on 6 reviews
  • 5 Stars
    5 Reviews
  • 4 Stars
    1 Review
  • 3 Stars
    0 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
100% of reviewers would recommend this product to a friend
6 Reviews
Reviewed by Alida
I recommend this product
Rated 5 out of 5
Review posted

Easy to deal with

Excellent service

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Reviewed by Michael
I recommend this product
Rated 5 out of 5
Review posted

Multiple Use's - limited only by your imagination!

Used these to hold chisels vertically in my tool cabinet. Magnets behind the timber are invisible, but even the heaviest of my chisels are totally supported.

Excellent product and great service.

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Reviewed by Wenton
I recommend this product
Rated 5 out of 5
Review posted

Top service

Rapid service, great products. Would buy again.

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Reviewed by Robert C.
I recommend this product
Rated 4 out of 5
Review posted

Seems a good product

Seems a good product

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Reviewed by Marshall
I recommend this product
Rated 5 out of 5
Review posted

Amazing product. Only regret is not ordering more the first time around.

I am making a knife rack and find the magnets I purchased superior to any I have tried before. Speedy delivery. Should have ordered more the first time.

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Neodymium Disc Magnet - 12mm x 5mm

Neodymium Disc Magnet 12mm x 5mm Description:

This rare earth disc magnet has a diameter of 12mm and a height of 5mm. It is extremely strong despite its small size. This neodymium rare earth disc has a magnetic flux reading of 4225 Gauss and a pull force of 3.9kg. It is identified by the AMF magnet part number 20040.


Uses for our Powerful Rare Earth Magnetic Discs:

This permanent magnet has an N42 grade for extra strength. An N42 magnetic grading is one of the highest magnetic grades. This provides for a strong magnetic holding power in comparison to a magnet with the same dimensions but lower grade.
Their compact form allows them to be easily recessed into gyprock, wood or chipboard for a uniform surface without weakening the structural integrity of the substrate material. This can be a fantastic way to hold doors firmly closed. Use in conjunction with a metal strike plate on the opposing door frame for the ultimate DIY solution.
Due to their size these magnets are suitable for a huge range of applications such as DC motors, model making, craft projects, home-made fridge magnets, jigs, production line assembly and many more.

 

Neodymium Disc Magnet - 12mm x 5mm (20040)

Grade
N42 N/A
Max Operating Temperature °C
<=80 N/A
Remanence Br(T)
1.3-1.35 N/A
Remanence Br(kGs)
13-13.5 N/A
Coercivity bHc(kA/m)
>=836 N/A
Coercivity bHc(Oe)
>=10.5 N/A
Intrinsic Coercivity iHc(kA/m)
>=955 N/A
Intrinsic Coercivity iHc(Oe)
>=12 N/A
Max Energy Product(BH)max(KJ/m)
318-350 N/A
Max Energy Product(BH)max(MGOe)
40-44 N/A
Grade N42 N/A
Max Operating Temperature °C <=80 N/A
Remanence Br(T) 1.3-1.35 N/A
Remanence Br(kGs) 13-13.5 N/A
Coercivity bHc(kA/m) >=836 N/A
Coercivity bHc(Oe) >=10.5 N/A
Intrinsic Coercivity iHc(kA/m) >=955 N/A
Intrinsic Coercivity iHc(Oe) >=12 N/A
Max Energy Product(BH)max(KJ/m) 318-350 N/A
Max Energy Product(BH)max(MGOe) 40-44 N/A

NB: Ranges are indicative for product category, please check individual products for specic values within that range.

The most common coating for Neodymium magnets is Nickel + Copper + Nickel (Ni + Cu + Ni). This coating offers the magnet relatively good protection from corrosion and passive applications. If the magnet will be exposed to moisture or liquid then consider the use of an organic coating such as Epoxy. A hard wearing coating, Epoxy is suited to applications where the magnet will come under some friction or knocking.

Magnets are readily available in Blocks, Discs, Cylinders & Rings. AMF Magnetics specializes in the supply of short-run prototype magnets including Arc Segments, various magnetic orientations etc. If you need a magnet size that we don't carry in stock, submit a Design-a-Magnet enquiry for a quote on your custom magnet design.

Neodymium magnets are offered in several different grades. The first section N30-54 has an operating temperature of up to 80 degrees. Most of our stock only goes up to N38. The second section, denoted with the "M" prefix after the grade has an operating temperature 100 degrees. After this the grades are "H", "SH", "UH" & "EH". In order for the magnet to withstand a higher operating temperature, during production more of the raw material PrNd is incorporated as these elements have a naturally occurring resistance to high temperatures.

average rating 4.8 out of 5
Based on 6 reviews
  • 5 Stars
    5 Reviews
  • 4 Stars
    1 Review
  • 3 Stars
    0 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
100% of reviewers would recommend this product to a friend
6 Reviews
Reviewed by Alida
I recommend this product
Rated 5 out of 5
Review posted

Easy to deal with

Excellent service

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Was this helpful?
Reviewed by Michael
I recommend this product
Rated 5 out of 5
Review posted

Multiple Use's - limited only by your imagination!

Used these to hold chisels vertically in my tool cabinet. Magnets behind the timber are invisible, but even the heaviest of my chisels are totally supported.

Excellent product and great service.

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Was this helpful?
Reviewed by Wenton
I recommend this product
Rated 5 out of 5
Review posted

Top service

Rapid service, great products. Would buy again.

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Was this helpful?
Reviewed by Robert C.
I recommend this product
Rated 4 out of 5
Review posted

Seems a good product

Seems a good product

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Was this helpful?
Reviewed by Marshall
I recommend this product
Rated 5 out of 5
Review posted

Amazing product. Only regret is not ordering more the first time around.

I am making a knife rack and find the magnets I purchased superior to any I have tried before. Speedy delivery. Should have ordered more the first time.

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