Compression NdFeB magnets are made through "compression molding" of the mixture of quick-quenched NdFeB magnetic powder and bonding agent. Due to its high accuracy in size, the bonded maget may be formed into magnetic components of relatively complicated shapes. Also,it features single-time molding and multi-pole orientation.
The injection molded magnet has a high mechanical strength and may be molded together with other matching parts.
Magnetic Characteristics of Bonded Compression NdFeB:
Properties Grade | Max Energy Product | Remanence | Coercive Force | Intrinsic Coercive Force | Density | Relative Recoil Permeability | Temp Coeff | Max. Working Temp |
(BH)max | Br | Hcb | Hcj | D | | α Br | Tw |
KJ/m3(MGOe) | T | KA/m(KOe) | KA/m(KOe) | g/cm3 | μ r | %/ ℃ | ℃ |
BNP-6 | 44-56(5.5-7.0) | 0.55-0.62 | 285-370(3.6-4.6) | 600-755(7.5-9.5) | 5.5-6.1 | 1.15 | -0.13 | 100 |
BNP-8L | 56-64(7.0-8.0) | 0.60-0.64 | 360-400(4.5-5.0) | 715-800(9-10) | 5.5-6.1 | 1.15 | -0.13 | 100 |
BNP-8 | 64-72(8.0-9.0) | 0.62-0.69 | 385-445(4.8-5.6) | 640-800(8-10) | 5.5-6.1 | 1.15 | -0.13 | 120 |
BNP-8SR | 64-72(8.0-9.0) | 0.62-0.66 | 410-465(5.2-5.8) | 880-1120(11-14) | 5.5-6.1 | 1.13 | -0.13 | 150 |
BNP-8H | 64-72(8.0-9.0) | 0.61-0.65 | 410-445(5.2-5.7) | 1190-1440(15-18) | 5.9-6.2 | 1.15 | -0.07 | 125 |
BNP-9 | 70-76(8.8-9.5) | 0.65-0.70 | 400-440(5.0-5.5) | 640-800(8-10) | 5.6-6.1 | 1.22 | -0.12 | 120 |
BNP-10 | 76-84(9.5-10.5) | 0.68-0.72 | 420-470(5.3-5.9) | 640-800(8-10) | 5.6-6.1 | 1.22 | -0.11 | 120 |
BNP-11 | 80-88(10-11) | 0.70-0.74 | 445-480(5.6-6.0) | 680-800(8.5-10) | 5.6-6.1 | 1.22 | -0.11 | 120 |
BNP-11L | 78-84(9.8-10.5) | 0.70-0.74 | 400-440(5.0-5.5) | 520-640(6.5-8) | 5.6-6.1 | 1.26 | -0.11 | 110 |
BNP-12L | 84-92(10.5-11.5) | 0.74-0.80 | 420-455(5.3-5.7) | 520-600(6.5-7.5) | 5.6-6.1 | 1.26 | -0.08 | 110 |

T The demagnetized curve of
compression neodymium magnet
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Category:
Compression Magnets
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Injection Magnets