Neodymium Ring Magnet - (OD)16.5mm x (ID)4.5mm/8.5mm x (H)6mm | Plastic Coated | Countersunk South Face

Product code: 23008BSth

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Neodymium Ring Magnet - (OD)16.5mm x (ID)4.5mm/8.5mm x (H)6mm | Plastic Coated | Countersunk South Face

Product Code 23008BSth
Pull Force* 0.450 kg
Weight 5 gm
Style Ring Magnet
Coating Plastic Coating
Dimensions Outside Diameter:16.5mm, Inside Diameter:4.5mm

Magnetic Product Description:

This Rare Earth ring magnet has an outside diameter of 16.5mm, an inside diameter of 4.5mm with a surrounding countersunk diameter of 8.5mm, and a height or thickness of 6mm. It is identified by the AMF magnet part number 23008B.

Uses for our Rare Earth ring magnets:

Used in conjunction with its matching North Orientated countersunk Neodymium Ring Magnet, this Plastic Coated ring is able to create a magnetic bond between materials with no metal content at all! This incredible feat is achieved by fixing each magnet to different surfaces with a countersunk screw and allowing the North and South poles to attract. This '"two poles, no metal" system circumvents many of the issues when elements of plastic, timber or even cloth need to be married or magnetic bond is desirable but ferrous material is absent. A bonus characteristic to make these magnet pairs even more practical is their Plastic Coating that protects the powerful magnets inside from shock and weather damage. A few pairs of matching plastic coated magnets can create an easy to attach and easy to remove bond between any two surfaces including those in outdoor locations or those exposed to moisture.

Neodymium Ring Magnet - (OD)16.5mm x (ID)4.5mm/8.5mm x (H)6mm | Plastic Coated | Countersunk South Face (23008BSth)

Grade
N42 N/A
Max Operating Temperature °C
<=80 N/A
Remanence
1.3-1.35 N/A
Coercivity
13-13.5>=836 N/A
Intrinsic Coercivity
>=10.5 N/A
Max Energy Product
>=955 N/A
Grade N42
Max Operating Temperature °C <=80
Remanence 1.3-1.35
Coercivity 13-13.5>=836
Intrinsic Coercivity >=10.5
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 16.5mm, an inside diameter of 4.5mm with a surrounding countersunk diameter of 8.5mm, and a height or thickness of 6mm. It is identified by the AMF magnet part number 23008B.

Uses for our Rare Earth ring magnets:

Used in conjunction with its matching North Orientated countersunk Neodymium Ring Magnet, this Plastic Coated ring is able to create a magnetic bond between materials with no metal content at all! This incredible feat is achieved by fixing each magnet to different surfaces with a countersunk screw and allowing the North and South poles to attract. This '"two poles, no metal" system circumvents many of the issues when elements of plastic, timber or even cloth need to be married or magnetic bond is desirable but ferrous material is absent. A bonus characteristic to make these magnet pairs even more practical is their Plastic Coating that protects the powerful magnets inside from shock and weather damage. A few pairs of matching plastic coated magnets can create an easy to attach and easy to remove bond between any two surfaces including those in outdoor locations or those exposed to moisture.

Neodymium Ring Magnet - (OD)16.5mm x (ID)4.5mm/8.5mm x (H)6mm | Plastic Coated | Countersunk South Face (23008BSth)

Grade
N42 N/A
Max Operating Temperature °C
<=80 N/A
Remanence
1.3-1.35 N/A
Coercivity
13-13.5>=836 N/A
Intrinsic Coercivity
>=10.5 N/A
Max Energy Product
>=955 N/A
Grade N42
Max Operating Temperature °C <=80
Remanence 1.3-1.35
Coercivity 13-13.5>=836
Intrinsic Coercivity >=10.5
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.