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D220 x d110 x 20 / F30 - ferrite magnet

D220 x d110 x 20 / F30 - ferrite magnetD220 x d110 x 20 / F30 - ferrite magnet€17.96

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Of Price Net Price Gross
1 pcs. €17.96 €22.09
4 pcs. €14.85 €18.27
20 pcs. €12.38 €15.23
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Product symbol: D220 x d110 x 20 / F30

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Performance parameters

External diameter

220 [mm] +2,5%/-2,5%

Internal diameter

110 [mm] +2,5%/-2,5%

Height

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

Magnetizing direction along dimension

20 [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

F30

Magnet type

Ferrite

Maximal hoisting capacity

41 [kg]

The pull force was measured by using metal sheet 10 [mm] thick, acting with perpendicular detaching force. With the force acting on the sliding off, the lifting capacity of the magnet will be 5 times smaller. The air gap comprised between the metal sheet and a magnet causes reduction in the pull force.

Maximum working temperature

250 [°C]

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): approx. -0,19 %/°[C]. Temperature coefficient of coercivity TK(HcJ): approx. 0,40 %/°[C].
Ferrite magnets do not require anticorrosive protection. They my be used in water.
As ceramic magnets, ferrite magnets are brittle.

Weight

2429,62 [g]

All the numbers quoted were obtained as a result of tests with one specific item in a room temperature and are intended to serve for comparison of practical magnetic properties of magnets offered by the shop.
Physical proprieties

density

~4,5 [g/cm3]

resistivity

104 - 108 [uOhm x cm]

D220xd110x20/F30 - ferrite magnet

This is a round magnet with a hole, a ring magnet, a round magnet with a hole, a ring

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. It has been manufactured to excellent dimensional tolerances.
The maximum operating temperature is no more than 250 degrees Celsius.
Ferrite magnets stick to metal surface (ferromagnetic materials).

mp220x110x20f30
Specific References