Reviewed by Les
I recommend this product
Retrieving items dropped from my yacht
Required to assist with retrieving steel tools/items dropped from my moored yacht into the water onto the sand in about 3m water.
Loading...
Was this helpful?
Neodymium Ring Magnet - (OD)22mm x (ID)7mm x (H)25mm
Product code: 23003A
$19.86for 1 to 9 items
$17.74buy 10 to 99 itemsand
save 11%
$14.16buy 100+ itemsand
save 29%
Neodymium Ring Magnet - (OD)22mm x (ID)7mm x (H)25mm
Rated 4.7 out of 5
Product Code
23003A
Pull Force*
17.38
Weight
69 gm
Style
Rare Earth Ring magnet
Coating
Nickel (NiCuNi)
Direction of Magnetisation
Axially magnetised thru the 25mm
Dimensions
Outside Diameter:22mm, Inside Diameter:7mm, Thickness:25mm
Magnetic Product Description:
This rare earth ring magnet has an outside diameter of 22mm, an inside diameter of 7mm and a height or thickness of 25mm. It is identified by the AMF magnet part number 23003A.
Uses for our Rare Earth Ring Magnets:
Ring Magnets are a convenient option where attachment of a magnet is required temporarily using string, cord or wire but also permanently, by using a nail or screw. This Ring is greater in height than in diameter which constitutes a magnet of highly concentrated magnetic strength and excellent holding ability. However, magnetic material that is absent due to the void area does impact the magnetic strength in a negative manner. Rings are easily attached to other materials and are ideal for use in metal detection tools or metal closure systems. They are also able to be positioned on shafts that enable them to move freely and become active components in measuring and monitoring equipment.
Neodymium Ring Magnet - (OD)22mm x (ID)7mm x (H)25mm (23003A)
| Grade | |
|---|---|
| N38 | N/A |
| Max Operating Temperature °C | |
| <=80 | N/A |
| Remanence | |
| 1.09-1.17 | N/A |
| Coercivity | |
| 12.3-13>=859 | N/A |
| Intrinsic Coercivity | |
| >=10.8 | N/A |
| Max Energy Product | |
| >=955 | N/A |
| Grade | N38 |
| Max Operating Temperature °C | <=80 |
| Remanence | 1.09-1.17 |
| Coercivity | 12.3-13>=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 rare earth ring magnet has an outside diameter of 22mm, an inside diameter of 7mm and a height or thickness of 25mm. It is identified by the AMF magnet part number 23003A.
Uses for our Rare Earth Ring Magnets:
Ring Magnets are a convenient option where attachment of a magnet is required temporarily using string, cord or wire but also permanently, by using a nail or screw. This Ring is greater in height than in diameter which constitutes a magnet of highly concentrated magnetic strength and excellent holding ability. However, magnetic material that is absent due to the void area does impact the magnetic strength in a negative manner. Rings are easily attached to other materials and are ideal for use in metal detection tools or metal closure systems. They are also able to be positioned on shafts that enable them to move freely and become active components in measuring and monitoring equipment.
Neodymium Ring Magnet - (OD)22mm x (ID)7mm x (H)25mm (23003A)
| Grade | |
|---|---|
| N38 | N/A |
| Max Operating Temperature °C | |
| <=80 | N/A |
| Remanence | |
| 1.09-1.17 | N/A |
| Coercivity | |
| 12.3-13>=859 | N/A |
| Intrinsic Coercivity | |
| >=10.8 | N/A |
| Max Energy Product | |
| >=955 | N/A |
| Grade | N38 |
| Max Operating Temperature °C | <=80 |
| Remanence | 1.09-1.17 |
| Coercivity | 12.3-13>=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.