Neodymium Block Magnet - 20mm x 12mm x 5mm | Epoxy Coating

Product code: 22021E

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Neodymium Block Magnet - 20mm x 12mm x 5mm | Epoxy Coating

Product Code 22021E
Pull Force* 5.9 kg
Weight 36 gm
Style Neodymium block magnet with Epoxy coating
Coating Nickel (NiCuNi) + Epoxy
Direction of Magnetisation Axially magnetised
Dimensions Width:12mm, Height:5mm, Length:20mm

Magnetic Product Description:

This magnet has a length of 20mm, a width of 12mm and a height of 5mm. It uses AMF Magnet part number 22021E.

Uses for our Rare Earth block magnets:

These Neodymium Blocks have an Epoxy coating that increases their resistance to corrosion and their ability to withstand the unfavourable weather of outdoor applications.

The newest member of the fastening product world, Magnets, are outperforming and superceding traditional fasteners like bolts, screws, rivets, nails and glues. The reasons are many. however, the main reason for the rise in popularity of magnets can be explained by their unrivalled, non-invasive ability to bond with Plastics. The use of plastics, including those in 3D printing, have increased in all industries in recent times. The costs or compromises incurred by old penetrative or adhesive fixing methods for plastic fabrications are no longer acceptable. To fasten with magnetic bond, however, incurs no material damage to the product's surface and provides an invisible fixing system that is both practical and attractive. Components joined with magnetic tape or magnets recessed into plastic moulds have a modern appearance and increased durability. 

Magnets with protective coatings are used wherever exposure to the atmosphere is common such as Marinas, Sportsgrounds, Racetracks, Amusement Parks and Transport Hubs. 

Neodymium Block Magnet - 20mm x 12mm x 5mm | Epoxy Coating (22021E)

Grade
N35 N/A
Max Operating Temperature °C
<=80 N/A
Remanence
1.18-1.25 N/A
Coercivity
11.8-12.5>=859 N/A
Intrinsic Coercivity
>=10.8 N/A
Max Energy Product
>=955 N/A
Grade N35
Max Operating Temperature °C <=80
Remanence 1.18-1.25
Coercivity 11.8-12.5>=859
Intrinsic Coercivity >=10.8
Max Energy Product >=955

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 magnet has a length of 20mm, a width of 12mm and a height of 5mm. It uses AMF Magnet part number 22021E.

Uses for our Rare Earth block magnets:

These Neodymium Blocks have an Epoxy coating that increases their resistance to corrosion and their ability to withstand the unfavourable weather of outdoor applications.

The newest member of the fastening product world, Magnets, are outperforming and superceding traditional fasteners like bolts, screws, rivets, nails and glues. The reasons are many. however, the main reason for the rise in popularity of magnets can be explained by their unrivalled, non-invasive ability to bond with Plastics. The use of plastics, including those in 3D printing, have increased in all industries in recent times. The costs or compromises incurred by old penetrative or adhesive fixing methods for plastic fabrications are no longer acceptable. To fasten with magnetic bond, however, incurs no material damage to the product's surface and provides an invisible fixing system that is both practical and attractive. Components joined with magnetic tape or magnets recessed into plastic moulds have a modern appearance and increased durability. 

Magnets with protective coatings are used wherever exposure to the atmosphere is common such as Marinas, Sportsgrounds, Racetracks, Amusement Parks and Transport Hubs. 

Neodymium Block Magnet - 20mm x 12mm x 5mm | Epoxy Coating (22021E)

Grade
N35 N/A
Max Operating Temperature °C
<=80 N/A
Remanence
1.18-1.25 N/A
Coercivity
11.8-12.5>=859 N/A
Intrinsic Coercivity
>=10.8 N/A
Max Energy Product
>=955 N/A
Grade N35
Max Operating Temperature °C <=80
Remanence 1.18-1.25
Coercivity 11.8-12.5>=859
Intrinsic Coercivity >=10.8
Max Energy Product >=955

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.