Neodymium magnets  
 

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Homepage >> Neodymium magnets NdFeB

Neodymium magnets NdFeB

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RECTANGULAR

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CYLINDERS

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RINGS

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Dimensions are in millimeters with a tolerance of + / -0.1 mm, last dimension is always the direction of magnetization. NdFeB (neodymium-iron-boron) magnets are produced by sintering of powder metals with rare element neodymium (discovered in 1885). After magnetization, its effects are several times stronger than conventional (ferrite) magnets. For example: (ferrite) magnet (which is eg the speaker) několikagramové lift weights, but neodymium magnet lifts up to 10 times greater weights.

Magnetic properties of neodymium magnets NdFeB deteriorate at work in temperatures exceeding 130 degrees. To a large extent depends on the material from which they are made. Whether it is a N-stage low permanence and also as: M - H-SH-UH-EH operating up to 210 degrees. Generally NdFeB magnets with a higher coefficient of permanence maintain a higher temperature without loss of magnetic properties.

Neodymium NdFeB magnets are brittle (though not as brittle as SmCo types or ferrite) any mechanical processing must be performed prior to magnetization, using diamond tools. After magnetization of the magnets may be just fine grind diamond wheels for continuous cooling. Neodymium magnets are covered with a thin layer of nickel, silver, gold and epoxy because they are in a humid environment prone to rusting.

Neodymium magnets are about 13% lighter than SmCo and ferrite magnets. These magnets can be magnets in many ways, depending on what purpose they serve.

Please read the safety instructions for working with magnets ->

Table properties of materials

 

 
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