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  Bonded NdFeB Magnet
  • Bonded neodymium is produced by neodymium powder and plastic powder with pressing or plastic injection.
  • With this workmanship, the product can reach high precision without furthering machining.
  • Normally coated with black or grey epoxy
  • Can make axial magnetization (or with multiple poles), and radial magnetization (or with multiple poles).
  • Mainly used CD ROM, DVD main shaft engine, stepping motor, non-brush motor. Servo motor and buzz speaker etc.
  • BONDED NDFEB
    Grade Br HCB HCJ BH(max) 密度 D g/cm 3 可逆磁导率 μ r 可逆温度系数      α( B r ) %/ ℃ 最高工作温度 T w ℃
    T KGs KA/m kOe KA/m kOe KJ/m3 MGOe
    BNP-6 0.55-0.62 5.5-6.2 285-370 3.6-4.6 600-755 7.5-9.5 44-56 5.5-7.0 5.5-6.1 1.15 -0.13 100
    BNP-8L 0.60-0.64 6.0-6.4 360-400 4.5-5.0 715-800 9-10 56-64 7.0-8.0 5.6-6.1 1.15 -0.13 110
    BNP-8 0.62-0.69 6.2-6.9 385-445 4.8-5.6 640-800 8-10 64-72 8.0-9.0 5.8-6.1 1.15 -0.13 120
    BNP-8SR 0.62-0.66 6.2-6.6 410-465 5.2-5.8 880-1120 11-14 64-72 8.0-9.0 5.8-6.1 1.13 -0.13 150
    BNP-8H 0.61-0.65 6.1-6.5 410-455 5.2-5.7 1190-1440 15-18 64-72 8.0-9.0 5.9-6.2 1.15 -0.07 125
    BNP-9 0.65-0.70 6.5-7.0 400-440 5.0-5.5 640-800 8-10 70-76 8.8-9.5 5.8-6.1 1.22 -0.12 120
    BNP-10 0.68-0.72 6.8-7.2 420-470 5.3-5.9 640-800 8-10 76-84 9.5-10.5 5.8-6.1 1.22 -0.11 120
    BNP-11 0.70-0.74 7.0-7.4 445-480 5.6-6.0 680-800 8.5-10 80-88 10.0-11.0 5.8-6.1 1.22 -0.11 120
    BNP-11L 0.70-0.74 7.0-7.4 400-440 5.0-5.5 520-640 6.5-8 78-84 9.8-10.5 5.8-6.1 1.26 -0.11 120
    BNP-12L 0.74-0.80 7.4-8.0 420-455 5.3-5.7 520-600 6.5-7.5 84-92 10.5-11.5 5.8-6.1 1.26 -0.08 110