This neodymium magnetic disc has a diameter of 4mm and a height of 3mm. It has a magnetic flux reading of 6029 Gauss and a pull force of 0.535 kilos. It is identified by the AMF magnet part number D-D4H3-N50.
Uses for our ferrite disc magnets:
This little Rare Earth disc magnet is surprisingly versatile, with applications that range from industrial and scientific through to home hobbyists. Since the discovery of Neodymium in the mid 1980s, many industries have seen a revolution due to the implications of replacing traditional magnets with Rare Earth magnets. The additional strength and reduced mass of Neodymium magnetic material have allowed many products to be scaled down, this is particularly prevalent in technology based fields such as computers, telecommunications and medical devices. Small round magnets are also commonly used in hobbies like paper crafts, figurines, game makers and woodworkers as they provide a simple means of attaching and securing. Displaying handmade items is often difficult to achieve without compromising the design, however tiny magnets such as these are easily hidden or disguised.
100%
of reviewers would recommend this product to a friend
Customer photos and videos
6 Reviews
RL
Rob L.Reviewed by Rob L.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted
box lid magnet
They work well. Be careful in this instance using two, that you get the polarity correct !!!
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Willie K.Reviewed by Willie K.
Verified Buyer
I recommend this product
Rated 4 out of 5
Review posted
Magnet Hunting
The magnets are good but the service was even better the lady that helped me was fantastic she very helpful keep up the great work thank you
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KH
Khole H.Reviewed by Khole H.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted
Good deal
Yeah very good magnets
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SP
Simon P.Reviewed by Simon P.
Verified Buyer
I recommend this product
Age Range
55 - 64
Use of product
Arts & Crafts
Rated 5 out of 5
Review posted
Great Service, Great Product
My order of 3mm by 4mm N50 magnets was exactly what I wanted and it arrived in NZ from AUS in a very timely way.
Does exactly what I wanted.. if anything the magnets were stronger than I expected and I need more glue to properly affix them.
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Quality
Rated 5 out of 5
Poor
Excellent
Ease of Use
Rated 5 out of 5
Poor
Excellent
Value
Rated 5 out of 5
Poor
Excellent
Strength
Rated 5 out of 5
Poor
Excellent
Was this helpful?
SS
Suzanne S.Reviewed by Suzanne S.
Verified Buyer
I recommend this product
Age Range
45 - 54
Gender
Female
Use of product
Home DIY
Rated 5 out of 5
Review posted
Great
Product arrived promptly and was exactly as I’d hoped.
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Quality
Rated 5 out of 5
Poor
Excellent
Ease of Use
Rated 5 out of 5
Poor
Excellent
Value
Rated 4 out of 5
Poor
Excellent
Strength
Rated 5 out of 5
Poor
Excellent
Was this helpful?
No FAQ available
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.
Magnetic Product Description:
This neodymium magnetic disc has a diameter of 4mm and a height of 3mm. It has a magnetic flux reading of 6029 Gauss and a pull force of 0.535 kilos. It is identified by the AMF magnet part number D-D4H3-N50.
Uses for our ferrite disc magnets:
This little Rare Earth disc magnet is surprisingly versatile, with applications that range from industrial and scientific through to home hobbyists. Since the discovery of Neodymium in the mid 1980s, many industries have seen a revolution due to the implications of replacing traditional magnets with Rare Earth magnets. The additional strength and reduced mass of Neodymium magnetic material have allowed many products to be scaled down, this is particularly prevalent in technology based fields such as computers, telecommunications and medical devices. Small round magnets are also commonly used in hobbies like paper crafts, figurines, game makers and woodworkers as they provide a simple means of attaching and securing. Displaying handmade items is often difficult to achieve without compromising the design, however tiny magnets such as these are easily hidden or disguised.
100%
of reviewers would recommend this product to a friend
Customer photos and videos
6 Reviews
RL
Rob L.Reviewed by Rob L.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted
box lid magnet
They work well. Be careful in this instance using two, that you get the polarity correct !!!
Loading...
Was this helpful?
WK
Willie K.Reviewed by Willie K.
Verified Buyer
I recommend this product
Rated 4 out of 5
Review posted
Magnet Hunting
The magnets are good but the service was even better the lady that helped me was fantastic she very helpful keep up the great work thank you
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Was this helpful?
KH
Khole H.Reviewed by Khole H.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted
Good deal
Yeah very good magnets
Loading...
Was this helpful?
SP
Simon P.Reviewed by Simon P.
Verified Buyer
I recommend this product
Age Range
55 - 64
Use of product
Arts & Crafts
Rated 5 out of 5
Review posted
Great Service, Great Product
My order of 3mm by 4mm N50 magnets was exactly what I wanted and it arrived in NZ from AUS in a very timely way.
Does exactly what I wanted.. if anything the magnets were stronger than I expected and I need more glue to properly affix them.
Loading...
Quality
Rated 5 out of 5
Poor
Excellent
Ease of Use
Rated 5 out of 5
Poor
Excellent
Value
Rated 5 out of 5
Poor
Excellent
Strength
Rated 5 out of 5
Poor
Excellent
Was this helpful?
SS
Suzanne S.Reviewed by Suzanne S.
Verified Buyer
I recommend this product
Age Range
45 - 54
Gender
Female
Use of product
Home DIY
Rated 5 out of 5
Review posted
Great
Product arrived promptly and was exactly as I’d hoped.
Loading...
Quality
Rated 5 out of 5
Poor
Excellent
Ease of Use
Rated 5 out of 5
Poor
Excellent
Value
Rated 4 out of 5
Poor
Excellent
Strength
Rated 5 out of 5
Poor
Excellent
Was this helpful?
No FAQ available
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.
This neodymium magnetic disc has a diameter of 4mm and a height of 3mm. It has a magnetic flux reading of 6029 Gauss and a pull force of 0.535 kilos. It is identified by the AMF magnet part number D-D4H3-N50.
Uses for our ferrite disc magnets:
This little Rare Earth disc magnet is surprisingly versatile, with applications that range from industrial and scientific through to home hobbyists. Since the discovery of Neodymium in the mid 1980s, many industries have seen a revolution due to the implications of replacing traditional magnets with Rare Earth magnets. The additional strength and reduced mass of Neodymium magnetic material have allowed many products to be scaled down, this is particularly prevalent in technology based fields such as computers, telecommunications and medical devices. Small round magnets are also commonly used in hobbies like paper crafts, figurines, game makers and woodworkers as they provide a simple means of attaching and securing. Displaying handmade items is often difficult to achieve without compromising the design, however tiny magnets such as these are easily hidden or disguised.
AMF MAGNETICS0.5kg-1kgBest_SellerD_4mmW_3mmadd-to-cart37006228258981Default Title0.60//magnet.com.au/cdn/shopifycloud/shopify/assets/no-image-2048-5e88c1b20e087fb7bbe9a3771824e743c244f437e4f8ba93bbf7b11b53f7824c.gifhttps://magnet.com.au/products/neodymium-disc-magnet-4mm-x-3mm-n50?variant=37006228258981InStockDefault Title
The Pull Force listed for each magnet is based on lifting 10mm thick steel from a horizontal surface. Magnets on a vertical surface
(of 10mm thick steel) are generally able to hold around only 30% of the pull force listed in the product description. This is due to
the effects of gravity and the lack of friction between the surface and the shiny magnet.
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