| NdFeB,the 3th generation of rare-earth permanent magnet,is produced by powder metallurgical method with neodymium(rare-earth metal),iron and boron.At present it is the most powerful magnet.with good stability,good demagnetization resistance,it is widely used in electronic devices,medical devices,electroacoustic apparatus,mini-special motor, magnetic coupler, magnetic separator,etc. |
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Wider application areas
 物理特性 PHYSICAL CHARACTERISTICS |
项目 Item | 单位 Unit | 数值 Value | 居里温度 Tc Curie
temperature | 0C | 310-340 | 温度系数
Temp.coefficient | α Br | %0C | -0.10~-0.12 | | α Hcj | %0C | -0.55~-0.6 | 回复磁导率 μrec
Relative recoil permeability | | 1.05~1.10 | | 密度 D Density | g/cm3 | 7.4~7.5 | | 硬度 H Hardness | HV | 560~580 | | 电阻率 ρResistivity | μΩ.cm | 150 |
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| NdFeB 磁体系列的磁性参数： |
| Magnetic Specifications of NdFeB Series Materials |
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牌号
Type NO | 剩磁
Remanence
Br | 矫顽力
Coercivity
Hcb | 内禀矫顽力
Intrinsic Coercivity Hcj | 最大磁能积
Max.energy product
(BH)max | 工作温度
Ambient
Temperature T | | | T | KGs | KA/m | KOe | KA/m | KOe | KJ/m3 | MGOe | 0C | | N30 | 1.08-1.16 | 10.8-11.6 | ≥780 | ≥9.8 | ≥955 | ≥12 | 233-255 | 28-32 | ≤80 | | N35 | 1.17-1.23 | 11.7-12.3 | ≥850 | ≥10.7 | ≥955 | ≥12 | 263-287 | 33-36 | ≤80 | | N38 | 1.23-1.27 | 12.3-12.7 | ≥876 | ≥11 | ≥955 | ≥12 | 287-311 | 36-39 | ≤80 | | N40 | 1.27-1.32 | 12.7-13.2 | ≥876 | ≥11 | ≥955 | ≥12 | 311-326 | 39-41 | ≤80 | | N42 | 1.32-1.35 | 13.2-13.5 | ≥876 | ≥11 | ≥955 | ≥12 | 326-341 | 41-43 | ≤80 | | N30H | 1.08-1.14 | 10.8-11.4 | ≥780 | ≥9.8 | ≥1353 | ≥17 | 223-247 | 28-31 | ≤120 | | N33H | 1.14-1.17 | 11.4-11.7 | ≥820 | ≥10.3 | ≥1353 | ≥17 | 255-271 | 32-34 | ≤120 | | N35H | 1.17-1.22 | 11.7-12.2 | ≥860 | ≥10.8 | ≥1353 | ≥17 | 271-286 | 34-36 | ≤120 | | N38H | 1.22-1.26 | 12.2-12.6 | ≥900 | ≥11.3 | ≥1353 | ≥17 | 286-302 | 36-39 | ≤120 | | N27SH | 1.02-1.07 | 10.2-10.7 | ≥740 | ≥9.3 | ≥1592 | ≥20 | 199-223 | 25-28 | ≤150 | | N30SH | 1.08-1.13 | 10.8-11.3 | ≥780 | ≥9.8 | ≥1592 | ≥20 | 223-247 | 28-31 | ≤150 | | N33SH | 1.14-1.17 | 11.4-11.7 | ≥720 | ≥10.3 | ≥1592 | ≥20 | 247-271 | 31-34 | ≤150 | | N25UH | 1.00-1.06 | 10.0-10.6 | ≥710 | ≥8.9 | ≥1990 | ≥25 | 183-215 | 23-27 | ≤180 |
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| 1、可根据客户要求生产长方行、圆形、瓦形等各种形状，不同充磁方式的钕铁硼磁体。 |
| We can provide NdFeB magnets in shapes of block,disc,ring,tile with different directions of magnetization according to customer's demand. |
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| 2、一般方形磁铁尺寸：（Nominal block magnet dimensions） |
公差（Tolerance) | 长（L） | 宽（W） | 高（H） | | 2--200mm | 1--150mm | 0.5-80mm | | 0.08-0.40mm | 0.08-0.40mm | 0.06-0.20mm |
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| 3 、一般圆（环）磁铁尺寸：（Nominal ring magnet dimensions） |
公差（Tolerance) | 外径（O/Dia） | 内径（I/Dia） | 高（H） | | 1-150mm | 1-140mm | 0.5-80mm | | 0.08-0.40mm | 0.08-0.40mm | 0.06-0.20mm |
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| 4 、磁体表面防氧化层可采用镀白锌、五彩锌、镀镍、磷化、或环氧树脂喷涂。 |
| The coating can be white zine,color zine,nickel,phosphate processing or resin. |