Neodymium Ring Magnet - (OD)25mm x (ID)5mm x (H)10mm | N35

Product code: R-OD25H10ID5-N35

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$21.79and save 22%

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Neodymium Ring Magnet - (OD)25mm x (ID)5mm x (H)10mm | N35

Product Code R-OD25H10ID5-N35
Pull Force* 13.87 kg
Weight 110 gm
Style Rare Earth Ring
Coating Nickel
Dimensions Outside Diameter:25mm, Inside Diameter:5mm, Thickness:10mm
*Measured against up to 10mm mild steel.

Magnetic Product Description:

This neodymium magnetic ring has an outer diameter of 25mm, an inner diameter of 5mm and the height of 10mm. It is identified by the AMF magnet part number R-OD25H10ID5-N35.

Uses for our Rare Earth Ring Magnets:

Neodymium Ring magnets are used in various instruments that are able to measure motion and also in devices that enable the conversion of physical movement into an electrical current. Communication tools of almost every kind use strong Neodymium Ring magnets to operate. Common examples of this type of magnetically enhanced technology include microphones, loudspeakers, headphones and other sound-related amplification equipment. High strength Neodymium material has meant the dimensions of modern devices like these have been able to be miniaturised while at the same time becoming more efficient and more powerful. Electricity generation in wind turbines and the motors of cordless electric power tools are other examples of technologies where Neodymium Ring magnets are valued for their permanent magnetic power. Rare earth magnets offer uncomplicated operation requiring fewer components with lower failure rates and less maintenance.
The void in a Ring magnet is also appreciated by customers who want to fabricate a homemade retrieval tool that can help them explore difficult to reach places. By threading a length of wire or rope through the hole, they able to lower the magnet into drainage pipes, holes and crevices. Lost metal tools and other valuable items can be retrieved in this way, saving both time and money.

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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.