Neodymium Magnet, NdFeB, Round

Caution
Product Description
Containing mainly Nd (neodymium), Fe (iron), and B (boron), the neodymium magnet is currently the most powerful magnet available.
Excellent mechanical strength with energy product about 8 times stronger than anisotropic ferrite magnets.
The neodymium magnet itself is prone to rusting, so nickel plating surface processing is applied as standard.
However, as its temperature resistance is low, care is required when using.
Drawing

Part number: Dimensional drawing of ND0109

Part number: Dimensional drawing of ND0306
Product Specifications

Part number: External appearance of ND0109

Part number: External appearance of ND0306
| Items | Name | Symbol | SI | CGS |
|---|---|---|---|---|
| Shape | Diameter | D | 1 mm | 0.1 cm |
| Height | H | 1 mm | 0.1 cm | |
| Magnetization direction | M | Axial direction | ||
| Weight | Net | 0.0000059k g | 0.0059 g | |
| Surface Treatment | Ni | 12µm | ||
| Magnetic characteristics | Surface magnetic flux density | B | 178 mT | 1,780 Gauss |
| Suction power Holding force | F | 0.034 kgf | 34 gf | |
| Operating point Magnetic flux density | Bd | 917 mT | 9,170 Gauss | |
| Total flux | øo | 0.00000072 Wb | 72Mx | |
| Permeance Coefficient | Pc | 3.47 Pc | ||
| Upper limit temperature | Tw | 105°C | ||
| Lower limit temperature | Tw | -°C | ||
| Material characteristics | Material symbol | Neodymium | 35 | |
| Residual magnetic flux density | Br | 1170- 1220 mT | 11.7 to 12.2 kG | |
| Coercive force | Hcb | ≥ 868 kA/m | kOe | |
| Intrinsic coercive force | Hcj | ≥ 955 kA/m | kOe | |
| Maximum energy product | BH | 263- 287kj/m^3 | MGOe | |
| Temperature coefficient | Br | -0.12%/°C | ||
| Hcj | -0.55%/°C | |||
| Heat-Resistant Temperature | Tw | ≦80°C | ||
| Curie temperature | Tc | 310°C | ||
| Density | ρ | 7.5 kg/m^3 | ||
| Notes | REACH Directive | |||
Part number: ND0109
| Items | Name | Symbol | SI | CGS |
|---|---|---|---|---|
| Shape | Diameter | D | 2 mm | 0.2 cm |
| Height | H | 0.5 mm | 0.05 cm | |
| Magnetization direction | M | Axial direction | ||
| Weight | Net | 0.0000118k g | 0.0118 g | |
| Surface Treatment | Ni | 12µm | ||
| Magnetic characteristics | Surface magnetic flux density | B | 158.2 mT | 1,582 Gauss |
| Suction power Holding force | F | 0.05 kgf | 50 gf | |
| Operating point Magnetic flux density | Bd | 440.2 mT | 4,402 Gauss | |
| Total flux | øo | 0.00000138 Wb | 138Mx | |
| Permeance Coefficient | Pc | 0.61 Pc | ||
| Upper limit temperature | Tw | 80°C | ||
| Lower limit temperature | Tw | -°C | ||
| Material characteristics | Material symbol | Neodymium | 35 | |
| Residual magnetic flux density | Br | 1170- 1220 mT | 11.7 to 12.2 kG | |
| Coercive force | Hcb | ≥ 868 kA/m | kOe | |
| Intrinsic coercive force | Hcj | ≥ 955 kA/m | kOe | |
| Maximum energy product | BH | 263- 287kj/m^3 | MGOe | |
| Temperature coefficient | Br | -0.12%/°C | ||
| Hcj | -0.55%/°C | |||
| Heat-Resistant Temperature | Tw | ≦80°C | ||
| Curie temperature | Tc | 310°C | ||
| Density | ρ | 7.5 kg/m^3 | ||
| Notes | REACH Directive | |||
Part number: ND0306
- *Please refer to the catalog for any types or part numbers other than those above
- * The magnetic flux density, pull force, and heat resistance differ depending on the measuring equipment and environment. These are reference values, not guaranteed values.