Neodymium Disc Magnet - 4mm x 2mm | N42

Product code: 20082

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Neodymium Disc Magnet - 4mm x 2mm | N42

Rated 5.0 out of 5
Based on 6 reviews
Product Code 20082
Pull Force* .340kg
Weight 1 gm
Style Rare Earth Disc magnet (N42)
Coating Nickel (NiCuNi)
Direction of Magnetisation Axially magnetised
Dimensions Height:2mm, Diameter:4mm

Magnetic Product Description:

This rare earth disc magnet has a diameter of 4mm and a height of 2mm. It has a magnetic flux reading of 4667 Gauss and a pull force of 340g. Its part number is 20082.

Uses for our Rare Earth disc magnets:

These small but powerful Neodymium N42 Grade Discs give added holding strength to a popular small disc shape.They are used in the design and production of sensors, actuators, electric motors in automated devices, the motors of cordless tools and for signage and packaging.

Neodymium Disc Magnet - 4mm x 2mm | N42 (20082)

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 6 reviews
  • 5 Stars
    6 Reviews
  • 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
Quality
Rated 5 out of 5
Ease of Use
Rated 5 out of 5
Value
Rated 5 out of 5
Strength
Rated 5 out of 5
6 Reviews
Reviewed by Shaun R.
Verified Buyer
I recommend this product
Age Range
35 - 44
Gender
Male
Use of product
Home DIY
Rated 5 out of 5
Review posted

Exactly what I wanted

Exactly what I needed and wanted. Good service

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Quality
Rated 5 out of 5
Ease of Use
Rated 5 out of 5
Value
Rated 5 out of 5
Strength
Rated 5 out of 5
Was this helpful?
Reviewed by Nick J.
I recommend this product
Rated 5 out of 5
Review posted

Fantastic for Miniature Pinning

Used to pin larger miniatures to flying bases. Worked amazingly

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

Excellent service

Fast delivery

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

4mm N24

Done the job and solved the problem perfectly!!

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

Exactly as advertised.

Exactly as advertised. Supplied safety sheet is a good addition.

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Was this helpful?

Magnetic Product Description:

This rare earth disc magnet has a diameter of 4mm and a height of 2mm. It has a magnetic flux reading of 4667 Gauss and a pull force of 340g. Its part number is 20082.

Uses for our Rare Earth disc magnets:

These small but powerful Neodymium N42 Grade Discs give added holding strength to a popular small disc shape.They are used in the design and production of sensors, actuators, electric motors in automated devices, the motors of cordless tools and for signage and packaging.

Neodymium Disc Magnet - 4mm x 2mm | N42 (20082)

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 6 reviews
  • 5 Stars
    6 Reviews
  • 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
Quality
Rated 5 out of 5
Ease of Use
Rated 5 out of 5
Value
Rated 5 out of 5
Strength
Rated 5 out of 5
6 Reviews
Reviewed by Shaun R.
Verified Buyer
I recommend this product
Age Range
35 - 44
Gender
Male
Use of product
Home DIY
Rated 5 out of 5
Review posted

Exactly what I wanted

Exactly what I needed and wanted. Good service

Loading...
Quality
Rated 5 out of 5
Ease of Use
Rated 5 out of 5
Value
Rated 5 out of 5
Strength
Rated 5 out of 5
Was this helpful?
Reviewed by Nick J.
I recommend this product
Rated 5 out of 5
Review posted

Fantastic for Miniature Pinning

Used to pin larger miniatures to flying bases. Worked amazingly

Loading...
Was this helpful?
Reviewed by janjan
I recommend this product
Rated 5 out of 5
Review posted

Excellent service

Fast delivery

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

4mm N24

Done the job and solved the problem perfectly!!

Loading...
Was this helpful?
Reviewed by Ron
I recommend this product
Rated 5 out of 5
Review posted

Exactly as advertised.

Exactly as advertised. Supplied safety sheet is a good addition.

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Was this helpful?