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Powerful neodymium bar magnets often simply referred to as neodymium magnets, are a type of permanent magnet widely recognized for their exceptional strength and magnetic properties. These magnets are part of the rare earth magnet family, with neodymium being a key component alongside iron and boron. The resulting NdFeB alloy gives these magnets their remarkable magnetic strength, making them the strongest commercially available magnets.
One of the distinctive features of neodymium block magnets is their high magnetic flux density, which allows them to generate powerful magnetic fields. These magnets come in various shapes, but the block/Bar or rectangular form factor is particularly popular due to its versatility in applications. The incredible strength-to-size ratio makes neodymium square magnets a preferred choice in numerous industries and applications.
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- Magnetic separators
- Microphone assemblies
- Servo motors
- DC motors (automotive starters) and other motors
- magnetic resonance imaging
- Various holders
- Meters
- Odometer
- Sensors
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|
Grade |
Br mt(KG) |
Hcb Koe(KA/m) |
iHc Koe(KA/m) |
(BH)max KJ/m3 (MGOe) |
TW℃ |
|
N35 |
1170-1210(11.7-12.1) |
≧10.8(≧860) |
≧12(≧955) |
263-287(33-36) |
80 |
|
N38 |
1210-1250(12.1-12.5) |
≧10.8(≧860) |
≧12(≧955) |
287-310(36-39) |
80 |
|
N40 |
1250-1280(12.5-12.8) |
≧11.6(≧923) |
≧12(≧955) |
302-326(38-41) |
80 |
|
N42 |
1280-1320(12.8-13.2) |
≧11.6(≧923) |
≧12(≧955) |
318-342(40-43) |
80 |
|
N45 |
1320-1380(13.2-13.8) |
≧11.0(≧876) |
≧12(≧955) |
342-366(43-46) |
80 |
|
N48 |
1380-1420(13.8-14.2) |
≧10.5(≧835) |
≧12(≧955) |
366-390(46-49) |
80 |
|
N50 |
1380-1450(13.8-14.5) |
≧10.5(≧835) |
≧12(≧955) |
474-406(47-51) |
80 |
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Rare earth NdFeB magnets have the character of hardness and brittleness. After the magnetization, its magnetic attraction is big as 60times as the its own weight. So the Neodymium magnet must be picked up carefully and gently during assemble process and kept away from iron ware to avoid mutually attracting, causing chips and cracks or other damage to the magnet. For the bigger size, the personal safety and self-protection are more important. it'll hurt operators in case that two strongly magnetized slices firmly attract unexpectedly. You can use machine equipment just like bolt or stick craft to assembly and fasten them.
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