Neodymium Ring Magnet - OD25mm x H2mm x ID10mm | North Marked

Product code: R-OD25H2ID10-N38

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Neodymium Ring Magnet - OD25mm x H2mm x ID10mm | North Marked

Product Code R-OD25H2ID10-N38
Pull Force* 2.8kg
Weight 90 gm
Style North Marked Neodymium Ring Magnet
Grade N38
Coating Nickel (Ni)
Direction of Magnetisation Axially
Dimensions Outside Diameter:25mm, Inside Diameter:10mm, Height:2 mm
*Measured against up to 10mm mild steel.
Neodymium Ring Magnet - OD25mm x H2mm x ID10mm | North Marked

Magnetic Product Description:

This Rare Earth ring magnet has an outside diameter of 25mm, an inside diameter of 10mm and a thickness of 2mm. These magnets are marked on their north-side. It is identified by the AMF magnet part number R-OD25H2ID10-N38.


Uses for our Rare Earth ring magnets:

Neodymium magnets are the strongest type of magnets on the market and they come in a range of different shapes and sizes. Ring magnets are a crucial component of many devices as they provide superior accuracy and precision. Fitting externally over a shaft or internally inside a tube, this serves as a magnetic ring sensor guiding moving mechanical elements into the correct position. Rare earth ring magnets are also an adaptable magnets for use around the home or in DIY projects as the hole in the middle provides an easy method to attach the magnet. The North and South poles are present through the flat faces of this axially magnetised ring.

Neodymium Ring Magnet - OD25mm x H2mm x ID10mm | North Marked (R-OD25H2ID10-N38)

Grade
N38 N/A
Max Operating Temperature °C
<=80 N/A
Remanence Br(T)
1.23-1.3 N/A
Remanence Br(kGs)
12.3-13 N/A
Coercivity bHc(kA/m)
>=859 N/A
Coercivity bHc(Oe)
>=10.8 N/A
Intrinsic Coercivity iHc(kA/m)
>=955 N/A
Intrinsic Coercivity iHc(Oe)
>=12 N/A
Max Energy Product(BH)max(KJ/m)
286-318 N/A
Max Energy Product(BH)max(MGOe)
36-40 N/A
Grade N38 N/A
Max Operating Temperature °C <=80 N/A
Remanence Br(T) 1.23-1.3 N/A
Remanence Br(kGs) 12.3-13 N/A
Coercivity bHc(kA/m) >=859 N/A
Coercivity bHc(Oe) >=10.8 N/A
Intrinsic Coercivity iHc(kA/m) >=955 N/A
Intrinsic Coercivity iHc(Oe) >=12 N/A
Max Energy Product(BH)max(KJ/m) 286-318 N/A
Max Energy Product(BH)max(MGOe) 36-40 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.

Neodymium Ring Magnet - OD25mm x H2mm x ID10mm | North Marked

Magnetic Product Description:

This Rare Earth ring magnet has an outside diameter of 25mm, an inside diameter of 10mm and a thickness of 2mm. These magnets are marked on their north-side. It is identified by the AMF magnet part number R-OD25H2ID10-N38.


Uses for our Rare Earth ring magnets:

Neodymium magnets are the strongest type of magnets on the market and they come in a range of different shapes and sizes. Ring magnets are a crucial component of many devices as they provide superior accuracy and precision. Fitting externally over a shaft or internally inside a tube, this serves as a magnetic ring sensor guiding moving mechanical elements into the correct position. Rare earth ring magnets are also an adaptable magnets for use around the home or in DIY projects as the hole in the middle provides an easy method to attach the magnet. The North and South poles are present through the flat faces of this axially magnetised ring.

Neodymium Ring Magnet - OD25mm x H2mm x ID10mm | North Marked (R-OD25H2ID10-N38)

Grade
N38 N/A
Max Operating Temperature °C
<=80 N/A
Remanence Br(T)
1.23-1.3 N/A
Remanence Br(kGs)
12.3-13 N/A
Coercivity bHc(kA/m)
>=859 N/A
Coercivity bHc(Oe)
>=10.8 N/A
Intrinsic Coercivity iHc(kA/m)
>=955 N/A
Intrinsic Coercivity iHc(Oe)
>=12 N/A
Max Energy Product(BH)max(KJ/m)
286-318 N/A
Max Energy Product(BH)max(MGOe)
36-40 N/A
Grade N38 N/A
Max Operating Temperature °C <=80 N/A
Remanence Br(T) 1.23-1.3 N/A
Remanence Br(kGs) 12.3-13 N/A
Coercivity bHc(kA/m) >=859 N/A
Coercivity bHc(Oe) >=10.8 N/A
Intrinsic Coercivity iHc(kA/m) >=955 N/A
Intrinsic Coercivity iHc(Oe) >=12 N/A
Max Energy Product(BH)max(KJ/m) 286-318 N/A
Max Energy Product(BH)max(MGOe) 36-40 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.