Neodymium Disc Magnet 10mm x 5mm N42
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This 10mm x 5mm disk is an N42 grade magnet with Nickel plating. Although small in size, this disk magnet has a surprisingly powerful holding force of 2.5kgs and a surface gauss reading of 4455G. Due to their compact form, these magnets are incredibly versatile, they can be used singularly or in countless different combinations to suit the dimensions needed for your application. N42 is one of the top magnetic grades, making these a superior holding power to a magnet of lesser grade in the same dimensions.
Disk magnets are popular for applications that require the magnet to be inserted inside or mounted flush into an object or machinery as the hole can simply be drilled or routed to the diameter of the magnet for a precise finish.
Neodymium are made of an alloy of Neodymium, iron and boron which are rare-earth elements. They are the world’s strongest permanent magnets and are the ideal magnet if you require maximum magnetic strength within confined dimensions. They are many times stronger than Ferrite and Alnico magnets and come in a considerable range of sizes, shapes and grades. Rare Earth magnets are magnetically stable and have good resistance to demagnetization however they are not suitable for applications in high temperatures.
The strength of these neodymium magnets means they must be handled with care, if allowed to strike against one another with force they can chip and shatter due to their brittle nature. Magnets have become a crucial element in many types of machinery. Due to their greater strength to size ratio, Neodymium magnets have now replaced Alnico and Ferrite magnets in many of these mechanical applications. More recently neodymium magnets have been adapted for the medical field in a range of ways such as Magnetic Resonance Imaging (MRI) scanners.
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.