Bonded NdFeB magnets are made of NdFeB magnetic powder mixed with epoxy binders, and are formed by compaction process. Bonded NdFeB magnets can be made into various size and shapes according to customer’s design, and can be magnetized in different ways including axial, multi-poles, radial, oblique magnetization etc. Bonded NdFeB magnet is rusted easily , so it is supplied with anti-corrosion coating such as Epoxy coating, Parkerising, Parylene.
| 牌号 | TNM-2 | TNM-4 | TNM-6 | TNM-8 | TNM-8L | TNM-8H | TNM-8SR | TNM-10 | TNM-10L | TNM-10H | TNM-10SR | TNM-12 | TNM-12L | TNM-3914 | TNM-3417 |
| Grade | |||||||||||||||
| 剩磁Br (mT) | 250-450 | 400-500 | 500-600 | 600-650 | 600-680 | 600-650 | 600-650 | 600-680 | 680-750 | 700-750 | 650-700 | 760-810 | 780-830 | 1280-1350 | 1200-1270 |
| Residual Induction (kGs) | 2.5-4.5 | 4.0-5.0 | 5.0-6.0 | 6.0-6.5 | 6.0-6.8 | 6.0-6.5 | 6.0-6.5 | 6.0-6.8 | 6.8-7.3 | 7.0-7.5 | 6.5-7.0 | 7.6-8.1 | 7.8-8.3 | 12.8-13.5 | 12.0-12.7 |
| 矫顽力Hcb (kA/m) | 160-280 | 240-320 | 320-400 | 360-440 | 360-440 | 400-480 | 400-480 | 400-480 | 400-480 | 400-480 | 400-480 | 400-480 | 400-480 | 760-792 | 736-768 |
| Coercive Force (kOe) | 2.0-3.5 | 3.0-4.0 | 4.0-5.0 | 4.5-5.5 | 4.5-5.5 | 5.0-6.0 | 5.0-6.0 | 5.0-6.0 | 5.0-6.0 | 5.0-6.0 | 5.0-6.0 | 5.0-6.0 | 5.0-6.0 | 9.5-9.9 | 9.2-9.6 |
| 内禀矫顽力Hcj (kA/m) | 320-560 | 560-720 | 560-720 | 640-800 | 640-800 | 1040-1360 | 880-1120 | 640-800 | 640-800 | 640-800 | 880-1120 | 480-640 | 480-640 | 1040-1200 | 1200-1360 |
| Intrinsic Coercive Force (kOe) | 4.0-7.0 | 7.0-9.0 | 7.0-9.0 | 8.0-10.0 | 8.0-10.0 | 13.0-17.0 | 11.0-14.0 | 8.0-10.0 | 8.0-10.0 | 8.0-10.0 | 11.0-14.0 | 6.0-8.0 | 6.0-8.0 | 13.0-15.0 | 15.0-17.0 |
| 最大磁能积(BH)max (kJ/m3) | 12-32 | 32-44 | 52-60 | 60-68 | 64-72 | 60-68 | 64-72 | 68-76 | 76-84 | 80-88 | 76-84 | 84-92 | 88-96 | 304-336 | 264-288 |
| Max Energy Product (MGOe) | 1.5-4.0 | 4.0-5.5 | 6.5-7.5 | 7.5-8.5 | 8.0-9.0 | 7.5-8.5 | 8.0-9.0 | 8.5-9.5 | 9.5-10.5 | 10.0-11.0 | 9.5-10.5 | 10.5-11.5 | 11.0-12.0 | 38-42 | 33-36 |
| 可逆透磁率µr/Recoil (µH/m) | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | ||
| Permeability | |||||||||||||||
| 平均可逆温度系数（%/℃） | -0.11 | -0.11 | -0.11 | -0.11 | -0.11 | -0.12 | -0.14 | -0.1 | -0.1 | -0.1 | -0.14 | -0.11 | -0.11 | ||
| Temp Coefficient | |||||||||||||||
| 居里温度 Tc(℃) | 360 | 360 | 360 | 360 | 360 | 300 | 300 | 360 | 360 | 360 | 300 | 320 | 320 | ||
| Curie Temperation | |||||||||||||||
| 最大工作温度 (℃) | 130 | 130 | 130 | 130 | 130 | 160 | 160 | 130 | 130 | 130 | 160 | 120 | 120 | ||
| Max. Operating Temperature | |||||||||||||||
| 密度ρ (g/cm3) | 5.2-5.7 | 5.2-5.7 | 5.5-6.0 | 5.8-6.1 | 5.8-6.1 | 5.8-6.1 | 5.8-6.1 | 5.8-6.1 | 5.8-6.1 | 6.0-6.3 | 5.8-6.1 | 6.0-6.3 | 6.1-6.4 | ||
| Density | |||||||||||||||
| 硬度HRB | 40-45 | 40-45 | 40-45 | 35-38 | 35-38 | 35-38 | 35-38 | 35-38 | 35-38 | 35-38 | 35-38 | 35-38 | 35-38 | ||
| Hardness |
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Bonded NdFeB magnets is widely used in all kinds of micro motors, such as spindle motor, stepping motor, synchronous motor, DC motor and brushless DC motor. It can replace sintered NdFeB magnets and ferrite, making motor assembling simpler and more reliable, reducing costs and improving efficiency.
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