Neodymium Ring Magnet OD24mm x H2mm | Hole 15 mm | N35H | High Temperature ≤120ºC
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Neodymium Ring Magnets
Powerful Neodymium ring-shaped magnets are manufactured using an alloy of rare earth minerals. This raw material has enabled Neodymium magnetic products to become the most powerful magnets on the market. This Neodymium ring magnet example has N35H Grade magnetic strength which gives this ring the ability to withstand higher operating temperatures than the 80℃ limit of the majority of Neodymium magnets. Circular ring magnets of this type contain heat resistant additives in the alloy that allow it to remain functional at temperatures up to 120℃. This capability can be an important requirement in various manufacturing processes and scientific applications where high temperature environments are necessary to maintain hygienic or sterile conditions. High speed electric motors which produce heat, like those found in cordless power tools, use strong Neodymium magnets to generate power and can also derive significant benefit from this type of heat resistant Neodymium magnet.
Typical Physical Properties
NB: Ranges are indicative for product category, please check individual products for specic values within that range.
Production Flow Diagram
Demagnetization Curves
Surface Treatment
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.
Range and Tolerance
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.
Magnetic Properties
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.
Returns Policy
If you are not entirely satisfied with your purchase, we're here to help.
We have a 30 Day Returns policy at Frenergy Magnets. You may return your item within 30 days of receiving it to receive a refund.
The product/s must be unused and in the same condition you received them in. Please contact us at info@frenergy.com.au to initiate the returns process.
The buyer is responsible for the cost of returning the order.
