Reviewed by Tim E.
Verified Buyer
I recommend this product
Great magnets
Pay attention to the kg ratings as these magnets are as strong as they state.
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Neodymium Disc Magnet - 22mm x 15mm | N42
Product code: 20010A
$21.55buy 10 to 99 itemsand
save 13%
$18.26buy 100+ itemsand
save 27%
Total
$25.05
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Neodymium Disc Magnet - 22mm x 15mm | N42
Rated 5.0 out of 5
Product Code
20010A
Pull Force*
17.45 kg
Weight
36 gm
Style
Rare Earth Disc Magnet
Gauss
5322
Grade
N42
Coating
Nickel (NiCuNi)
Direction of Magnetisation
Axially magnetised
Dimensions
Height:15mm, Diameter:22mm
*Measured against up to 10mm mild steel.
Magnetic Product Description:
These incredibly strong N42 grade Neodymium Disc Magnets have an impressive pull force of 17.45kg! Considering the small size of 22mm in diameter and 15mm in height, these rare earth discs are so strong due to their high grade of N42! The magnet itself is identified on our website as part number 20010A. These discs are axially magnetised, meaning the north and south poles are located on the flat surfaces, not the curves edges, and it is these surfaces that will have the stronger pull force.
Uses for our rare earth disc magnets:
Due to the high strength of such a small magnet, these N42 Neodymium Disc Magnets has incredible versatility and can be used for a large number of applications. They will maintain their magnetic pull permanently unless they are damaged by being exposed to intense temperatures or water. These Rare Earth Discs are often used for the purpose of holding, lifting and metal separation, but can also be used in the collection of small ferrous metallic swarf or water conditioning. Many people use them as stud finders as their strong pull force allows for their magnetic field to penetrate the wall surface and detect the studs behind them. It is this versatility that makes these N42 grade Neodymium Discs some of the most popular magnets in our stock!
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.
