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The N40 grade of neodymium magnets is of medium performance and can be processed in various shapes. Grade of neodymium magnet surface magnetic field strength and pull strength.
The surface magnetic field strength and tensile strength of N40 grade neodymium magnets are introduced below.
n40 magnet surface magnetic field strength reference;
N40 grade D2x10mm cylinder is axially magnetized, and the surface magnetic field strength is 3160 Gauss.
N40 D12x20mm neodymium magnet, surface magnetism is 5660 Gauss
N40H/ni/block 13x7x4.98, magnetic field strength 3500 Gauss
N40SH arc magnet R39.75*34.75*35.35°*126*5, surface magnetism 1200 Gauss
N40h / Ni / D4 x 1.8 mm, magnetic field strength: 3160gs
N40 / Ni / F25x17x3mm, magnetic field strength: 3200gs
N40 / Ni / D6 x 3, measured magnetic 3220gs
N40 / zinc / D70 * d30 * 3, surface magnetic 1020gs
N40 / Zn / 18.2 * 8.1 * 4.7, surface magnetism 3260gs
N40 ring magnet D22.23 * d4.76 * 25.4 about 4560gs
Ring Neodymium Magnet D6.4x1.25x0.98mm Approx. 1970 Gauss
The strength of the magnetic field depends on the grade and shape of the magnet. It is wrong to simply think that the higher the grade, the higher the surface magnetic field. The premise is that under the same specifications, the higher the grade, the higher the surface magnetic field! For example, the surface magnetism of N35 D3*10>N50 d30*2.
About the attraction force of neodymium magnet;
The higher the surface magnetism, the greater the suction force per unit area! Suction force = unit surface magnetism * unit area. Therefore, it cannot be simply assumed that the attraction force of a magnet with a high surface magnetism must be large! For example, the suction force of N50 D3*10<N33 10*5 (although the surface magnetism of N50 D3*10>N33 10*5).
How strong is the N40 grade neodymium magnet pulling force?
The main factor affecting the pulling force of N40 grade neodymium magnets is the size. The following data are for reference only, and the actual situation shall prevail.
For example, N40 square neodymium magnet 10x10x2 pulls about 4kg
A neodymium magnet with a diameter of 5 and a thickness of 4mm has a pulling force of about 750g
40x12x8mm NdFeB N40 tension about 10kg
20x10x5 mm neodymium magnet pulls about 4kg
Diameter 10mm thickness 2mm tensile force is about 1.3kg.
The above is an introduction to the strength of N40 grade neodymium magnets. If you want to buy or customize neodymium magnets, please contact our company.
You can also try this pull force measurement tool;
Online Calculation of Neodymium Magnet Pulling Force
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Material description and demagnetization curve of neodymium magnet N40
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