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Neodymium Ring with Plastic Coating | 16.5mm x D4.5/D8.5mm x 6mm | South Countersunk Face

Product code: 23008BSth

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Neodymium Ring with Plastic Coating | 16.5mm x D4.5/D8.5mm x 6mm | South Countersunk Face

Product Code 23008BSth
Pull Force* 450g
Weight 5 gm
Style Ring Magnet
Grade N42
Coating Plastic Coating
Dimensions Outside Diameter:16.5mm, Inside Diameter:4.5mm
*Measured against up to 10mm mild steel.

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 diametre of 8.5mm, and a thickness of 6mm. It is identified by the AMF magnet part number 23008B.

Uses for our Rare Earth ring magnets:

This Ring magnet is the South orientated component of a complementary pair of magnets that are designed to attract to each other. Countersunk holes allow them to attach to any surface with a screw and because the magnets form their own attractive bond, ferrous metal surfaces are not required. The addition of a weather-proof and corrosion resistant plastic coating makes these matched magnets one of the most sophisticated and practical magnetic products available. Any material can attach to any other magnetically with this ingenious system that eliminates the need for steel surfaces to be involved. Bonds can be created magnetically between, timber, plastic, composite material and even non-synthetic surfaces. Protected by a plastic coating, these magnets excel in outdoor applications and recreational areas where uncoated magnets would corrode over time. For situations where a simple, stylish and efficient pull-to-remove magnetic hold is required, these paired magnets are the solution.

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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.