Large Rare Earth Magnets
Sintered NdFeB permanent magnet contains basic raw materials neodymium (Nd) 32%, iron (Fe) 64%, boron (B) 1%, , with small amount of dysprosium (Dy), terbium (Tb), cobalt (Co) , niobium (Nb), gallium (Ga), aluminum (Al), copper (Cu) and other elements, Sintered NdFeB permanent magnetic materials with the high remanence, high coercivity, and was known as the " Magnetic King" The main characteristics of permanent magnetic materials is : good magnetic properties , high temperature performance. High Curie temperature,up to 710 ~ 880 degrees Celsius, the maximum operating temperature up to 250 ~ 350 degrees Celsius. So the stability of permanent magnet magnetic material is best, it is suitable for manufacturing various high-performance permanent magnet electro-acoustic devices.
MAGNETIC AND PHYSICAL CHARACTERISTICS (NdFeB)
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| No. | TYPE | Remanence Br | Coercive-force bHc | Intrinsic coercive force iHc | Max. energy product (BH) max | Working Temperature | | KGs | T | KOe | KA/m | KOe | KA/m | MGOe | KJ/m³ | 0C |
26
| N-30SH | 10.8-11.2 | 1.08-1.12 | 10.1-10.6 | 804-844 | ≥20 | ≥1592 | 28-30 | 223-239 | ≤150 | 27
| N-33SH | 11.4-11.7 | 11.4-11.7 | 10.6-11.1 | 844-884 | ≥20 | ≥1592 | 31-33 | 247-263 | ≤150 | 28
| N-35SH | 11.7-12.1 | 1.17-1.21 | 10.8-11.5 | 860-915 | ≥20 | ≥1592 | 33-35 | 263-279 | ≤150 | 29
| N-38SH | 12.1-12.5 | 1.21-1.25 | 10.8-11.5 | 860-915 | ≥20 | ≥1592 | 36-38 | 287-302 | ≤150 | 30
| N-40SH | 12.6-12.9 | 1.26-1.29 | 10.8-11.5 | 860-915 | ≥20 | ≥1592 | 38-40 | 303-318 | ≤150 | 31
| N-42SH | 13-13.3 | 1.30-1.33 | 11.4-11.9 | 907-947 | ≥19 | ≥1512 | 40-42 | 318-314 | ≤140 |
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