40 x 20 x 10 / F30 - ferrite magnet
Polityka bezpieczeństwa (edytuj za pomocą modułu „Bezpieczeństwo klienta”)
Zasady dostawy (edytuj za pomocą modułu „Bezpieczeństwo klienta”)
Zasady zwrotu (edytuj za pomocą modułu „Bezpieczeństwo klienta”)
Length
40 [mm] +2,5%/-2,5%
Width
20 [mm] +2,5%/-2,5%
Height
10 [mm] +0,1/-0,1
Magnetizing direction along dimension
10 [mm]
Grade
F30
Magnet type
Ferrite
Maximal hoisting capacity
~2,1 [kg]
Maximum working temperature
250 [°C]
Weight
36 [g]
Performance parameters
Direction of magnetization along the height (the last dimension included in a magnet name) means that the surface of a magnet perpendicular to its height makes the N-pole, while the other surface perpendicular to the height refers to the S-pole;.
The maximum lifting capacity specified above was measured using smooth, polished sheet metal. The sheet metal used was of optimal thickness. The pull-off force acted perpendicularly. With a force acting parallel to the sheet metal, i.e. when moving the magnet across the sheet metal, the lifting capacity of the magnet will be significantly lower. The gap between the magnet and the sheet metal resulting from the sheet metal being covered with a layer of paint or galvanic coating will also cause a decrease in the lifting capacity of the magnet. Any roughness or unevenness of the sheet metal will also reduce the lifting capacity of the magnet. The highest lifting capacity is achieved by using a sufficiently thick sheet containing a high amount of iron. Using high-carbon steel or cast iron sheet will result in a lower lifting capacity. The maximum lifting capacity is also affected by the operating temperature of the magnet. A heated magnet will have a lower lifting capacity.
For flat magnets and magnets mounted in the open magnetic circuit working temperature may be insignificantly lower. For high magnets and magnets mounted in the closed magnetic circuit working temperature equals max. working temperature for a given material. Curie’s temperature is ~ 450°[C]. Temperature coefficient of remanence TK(Br): ≤ -0,19 %/°[C]. Temperature coefficient of coercivity TK(HcJ): ≥ 0,40 %/°[C].
Ferrite magnets do not require anticorrosive protection. They my be used in water.
As ceramic magnets, ferrite magnets are brittle.
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.
Magnetic properties of material grade F30
remanence Br |
~ 0,37 [T] |
coercivity HcB |
~ 175 [kA/m] |
coercivity HcJ |
~ 180 [kA/m] |
| The magnetic properties of the material are not identical for every magnet. The measurement results for different magnets will vary due to the inherent heterogeneity of the magnetic material and the measurement tolerances of the measuring device. |
Physical proprieties
density |
~4,5 [g/cm3] |
resistivity |
104 - 108 [uOhm x cm] |
40x20x10/F30 - ferrite block magnet
This is a block magnet. It is rectangular in shape.
It is a ferrite magnet, magnetised along the height. It has two poles, which means it is double-sided. Ferrite magnets are well resistant to corrosion and do not require additional protection. The maximum operating temperature is no more than 250 degrees Celsius.
Ferrite magnets stick to metal surface (ferromagnetic materials).