Neodymium Cylinder Magnet - 50.8mm x 50.8mm | N48
Product code: 21003

Neodymium Cylinder Magnet - 50.8mm x 50.8mm | N48
Magnetic Product Description:
This neodymium cylinder magnet has a diameter of 50.8mm and a height of 50.8mm. Identified by AMF magnet part number 21003.
Uses for our rare earth cylinder magnets:
This is a very powerful Neodymium Cylinder magnet that has enormous holding ability (158kg) and is not for general domestic use. It is produced with higher N48 Grade material that increases overall power without changing the magnet's physical dimensions. The shape concentrates the magnetic energy to the flat pole surface creating an intense grip that would be difficult to dislodge without some mechanical leverage or other assistance. Large-scale Manufacturers and those involved in Scientific experimental and Research projects use cylinder magnets tor attractive and also deflective purposes and in situations where powerful magnets can interact with electrically charged particles in matter.
Neodymium Cylinder Magnet - 50.8mm x 50.8mm | N48 (21003)
Grade | |
---|---|
N48 | N/A |
Max Operating Temperature °C | |
<=80 | N/A |
Remanence | |
1.37-1.43 | N/A |
Coercivity | |
13.7-14.3>=836 | N/A |
Intrinsic Coercivity | |
>=10.5 | N/A |
Max Energy Product | |
>=875 | N/A |
Grade | N48 |
Max Operating Temperature °C | <=80 |
Remanence | 1.37-1.43 |
Coercivity | 13.7-14.3>=836 |
Intrinsic Coercivity | >=10.5 |
Max Energy Product | >=875 |

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 cylinder magnet has a diameter of 50.8mm and a height of 50.8mm. Identified by AMF magnet part number 21003.
Uses for our rare earth cylinder magnets:
This is a very powerful Neodymium Cylinder magnet that has enormous holding ability (158kg) and is not for general domestic use. It is produced with higher N48 Grade material that increases overall power without changing the magnet's physical dimensions. The shape concentrates the magnetic energy to the flat pole surface creating an intense grip that would be difficult to dislodge without some mechanical leverage or other assistance. Large-scale Manufacturers and those involved in Scientific experimental and Research projects use cylinder magnets tor attractive and also deflective purposes and in situations where powerful magnets can interact with electrically charged particles in matter.
Neodymium Cylinder Magnet - 50.8mm x 50.8mm | N48 (21003)
Grade | |
---|---|
N48 | N/A |
Max Operating Temperature °C | |
<=80 | N/A |
Remanence | |
1.37-1.43 | N/A |
Coercivity | |
13.7-14.3>=836 | N/A |
Intrinsic Coercivity | |
>=10.5 | N/A |
Max Energy Product | |
>=875 | N/A |
Grade | N48 |
Max Operating Temperature °C | <=80 |
Remanence | 1.37-1.43 |
Coercivity | 13.7-14.3>=836 |
Intrinsic Coercivity | >=10.5 |
Max Energy Product | >=875 |

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.