Neodymium Disc Magnet - 86mm x 50mm | N42

Product code: 93046

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Neodymium Disc Magnet - 86mm x 50mm | N42

Rated 5.0 out of 5
Based on 1 review
Product Code 93046
Pull Force* 301.1 kg
Weight 1500 gm
Style Rare Earth Disc magnet N42
Gauss 5004
Grade N/A
Coating Nickel (NiCuNi)
Direction of Magnetisation Axially magnetised
Dimensions Height:50mm, Diameter:86mm
*Measured against up to 10mm mild steel.
Neodymium Disc Magnet - 86mm x 50mm | N42

Magnetic Product Description:

This rare earth disc has a diameter of 86mm and a height of 50mm. It is identified by the AMF magnet part number 93046.


Uses for our rare earth disc magnets:

Strong Neodymium disc magnets are most regularly used in industrial applications, such as lifting or metal separation. The high grade of these magnets (N42) indicates the superior quality and higher than usual strength. They can also be used for water purification and food decontamination, as well as metal detection. Extreme caution should be used when handling this product, due to its high pull force. They can be extremely dangerous if misused. This magnet is designed for commercial use only.

Neodymium Disc Magnet - 86mm x 50mm | N42 (93046)

Grade
N35 N/A
Max Operating Temperature °C
<=80 N/A
Remanence Br(T)
1.18-1.25 N/A
Remanence Br(kGs)
11.8-12.5>=859 N/A
Coercivity bHc(kA/m)
>=10.8 N/A
Coercivity bHc(Oe)
>=955 N/A
Intrinsic Coercivity iHc(kA/m)
>=12 N/A
Intrinsic Coercivity iHc(Oe)
263-294 N/A
Max Energy Product(BH)max(KJ/m)
33-37 N/A
Grade N35 N/A
Max Operating Temperature °C <=80 N/A
Remanence Br(T) 1.18-1.25 N/A
Remanence Br(kGs) 11.8-12.5>=859 N/A
Coercivity bHc(kA/m) >=10.8 N/A
Coercivity bHc(Oe) >=955 N/A
Intrinsic Coercivity iHc(kA/m) >=12 N/A
Intrinsic Coercivity iHc(Oe) 263-294 N/A
Max Energy Product(BH)max(KJ/m) 33-37 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 5.0 out of 5
Based on 1 review
  • 5 Stars
    1 Review
  • 4 Stars
    0 Reviews
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  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
100% of reviewers would recommend this product to a friend
1 Review
Reviewed by Matthew T.
I recommend this product
Rated 5 out of 5
Review posted

Buyers remorse for a great product

I bought one and it turned up in the post yesterday.

These magnets are strong. It is now well and truly stuck to the side of my letter box and I can't get it off. I tried to jimmy it off using my keys, but now my keys are stuck! I don't know what to do!

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Neodymium Disc Magnet - 86mm x 50mm | N42

Magnetic Product Description:

This rare earth disc has a diameter of 86mm and a height of 50mm. It is identified by the AMF magnet part number 93046.


Uses for our rare earth disc magnets:

Strong Neodymium disc magnets are most regularly used in industrial applications, such as lifting or metal separation. The high grade of these magnets (N42) indicates the superior quality and higher than usual strength. They can also be used for water purification and food decontamination, as well as metal detection. Extreme caution should be used when handling this product, due to its high pull force. They can be extremely dangerous if misused. This magnet is designed for commercial use only.

Neodymium Disc Magnet - 86mm x 50mm | N42 (93046)

Grade
N35 N/A
Max Operating Temperature °C
<=80 N/A
Remanence Br(T)
1.18-1.25 N/A
Remanence Br(kGs)
11.8-12.5>=859 N/A
Coercivity bHc(kA/m)
>=10.8 N/A
Coercivity bHc(Oe)
>=955 N/A
Intrinsic Coercivity iHc(kA/m)
>=12 N/A
Intrinsic Coercivity iHc(Oe)
263-294 N/A
Max Energy Product(BH)max(KJ/m)
33-37 N/A
Grade N35 N/A
Max Operating Temperature °C <=80 N/A
Remanence Br(T) 1.18-1.25 N/A
Remanence Br(kGs) 11.8-12.5>=859 N/A
Coercivity bHc(kA/m) >=10.8 N/A
Coercivity bHc(Oe) >=955 N/A
Intrinsic Coercivity iHc(kA/m) >=12 N/A
Intrinsic Coercivity iHc(Oe) 263-294 N/A
Max Energy Product(BH)max(KJ/m) 33-37 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 5.0 out of 5
Based on 1 review
  • 5 Stars
    1 Review
  • 4 Stars
    0 Reviews
  • 3 Stars
    0 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
100% of reviewers would recommend this product to a friend
1 Review
Reviewed by Matthew T.
I recommend this product
Rated 5 out of 5
Review posted

Buyers remorse for a great product

I bought one and it turned up in the post yesterday.

These magnets are strong. It is now well and truly stuck to the side of my letter box and I can't get it off. I tried to jimmy it off using my keys, but now my keys are stuck! I don't know what to do!

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