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Neodymium Ring Magnet – 57.25mm (OD) x 48.25mm (ID) x 3mm (H) | N45
Product code: 23033
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Rare Earth Ring Magnet - 57.25mm (OD) x 48.25mm (ID) x 3mm | N45
This strong Neodymium Ring Magnet features an outer diameter of 57.25mm, an inner diameter of 48.25mm, and a slim 3mm thickness. Made from high-performance N45-grade Neodymium and finished with a Nickel coating for durability, it delivers a pull force of 7.13kg and a Gauss reading of -133. This magnet is identified by part number 23033.
Applications for Rare Earth Ring Magnets:
With its wide surface area and low profile, this ring magnet is ideal for use in specialised equipment such as audio recording devices, communication systems, and monitoring instruments like sensors. Its compact ring shape is particularly suited to modern electronic designs, where space is limited and high magnetic performance is essential.
The central hole allows for easy integration into plastic housings or moulded components, eliminating the need for bulky fixings or mechanical fasteners. This not only streamlines assembly but also helps reduce weight and production costs—making it an excellent choice for engineers and designers seeking efficiency without compromising on strength.
No FAQ available
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.
Rare Earth Ring Magnet - 57.25mm (OD) x 48.25mm (ID) x 3mm | N45
This strong Neodymium Ring Magnet features an outer diameter of 57.25mm, an inner diameter of 48.25mm, and a slim 3mm thickness. Made from high-performance N45-grade Neodymium and finished with a Nickel coating for durability, it delivers a pull force of 7.13kg and a Gauss reading of -133. This magnet is identified by part number 23033.
Applications for Rare Earth Ring Magnets:
With its wide surface area and low profile, this ring magnet is ideal for use in specialised equipment such as audio recording devices, communication systems, and monitoring instruments like sensors. Its compact ring shape is particularly suited to modern electronic designs, where space is limited and high magnetic performance is essential.
The central hole allows for easy integration into plastic housings or moulded components, eliminating the need for bulky fixings or mechanical fasteners. This not only streamlines assembly but also helps reduce weight and production costs—making it an excellent choice for engineers and designers seeking efficiency without compromising on strength.
No FAQ available
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.
