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D20x2 self-adhesive disc magnet
  • D20x2 self-adhesive disc magnet

D20 x 2 / N38 - Neodymium magnet (NdFeB) / self-adhesive, with foam 3M 4920

D20 x 2 / N38 - Neodymium magnet (NdFeB) / self-adhesive, with foam 3M 4920D20 x 2 / N38 - Neodymium magnet (NdFeB) / self-adhesive, with foam 3M 4920€1.05

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Of Price Net Price Gross
1 pcs. €1.05 €1.29
10 pcs. €0.46 €0.57
50 pcs. €0.37 €0.46
150 pcs. €0.36 €0.44
350 pcs. €0.35 €0.43
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Product symbol: D20 x 2 / N38 (3M 4920)

 

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Performance parameters

External diameter

20 [mm] +0,1/-0,1

Height

2 [mm] +0,1/-0,1

Magnetizing direction along dimension

2 [mm]

Direction of magnetization along the height means that one circular surface of a magnet makes the N-pole, while the other – opposite – circular surface refers to the S-pole.

Grade

N38

Magnet type

Neodymium

Maximal hoisting capacity

2,44 [kg]

The magnetic force value given above, expressed in kilograms, was measured under ideal conditions. A thick iron plate with a smooth, unpainted surface was used. The force required to detach the magnet from the plate was perpendicular to the plate.

Magnetic field in geometrical center of the magnetic pole surface

0,11 [T]

Coating

NiCuNi with foam 3M 4920

do not use in water
Sintered neodymium magnets are brittle (fragile). A neodymium magnet without housing could break after an impact with another strong magnet.

Maximum working temperature

≤ 80 [°C]

The maximum operating temperature of a magnet depends on the specific magnetic circuit in which the magnet is placed. Curie’s temperature is ~ 310°[C]. Temperature coefficient of remanence TK(Br): ≤ -0,12 %/°[C]. Temperature coefficient of coercivity TK(HcJ): ≤ -0,6 %/°[C].

adhesive

yes

Weight

4,8 [g]

The magnet parameter values presented here are the result of measurements taken on one specific magnet and are used to compare magnets available in the online shop. We recommend testing the magnet yourself under the expected operating conditions.
Physical properties

Density

~7,5 [g/cm3]

Vickers’ hardness (HV)

~600 [kg/mm2]

Resistivity

~144 [uOhm x cm]

If you require neodymium magnets manufactured to strict specifications, please send us your enquiry along with your requirements.



D20x2/N38 - Neodymium magnet


This thin magnet is circular, cylindrical, shaped like a cylinder or disc.

It is a neodymium magnet, magnetised along the height. It has an excellent adhesive layer 3M or adhesive foam 3M. It is very easy to stick after removing the protective tape. This magnet is very easy to stick to many surfaces. It has been protected against corrosion by nickel plating. It has been manufactured accordnig to excellent dimensional tolerances. The maximum operating temperature is no more than 80 degrees Celsius. Neodymium magnets stick to metal surface.


MW20X2N38_3M4920
Specific References
New