 Organic Chemistry Molecular Model Sets, Permanent Neodymium Rare Earth Magnets, Magnifying Glasses, Test Strips, Lab Supplies, Tuning Forks
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NdFeB Cube Magnet
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| The NdFeB (neodymium iron boron) cube magnets are N42 ~13,000 gauss (1.3T). Field strengths have been calculated
using finite element analysis at the surface and 4 places above the central point and are estimated to be within
10% of actual. For surface measurements, these values are more accurate than a magnetometer since such devices have an
airgap of at least 0.1mm between the magnet and sensor. The 0mm measurement is a maximum theoretical value that
assumes there is no nickel coating. The holding forces are also theoretical maximums based on optimum permeability, thickness, area of the metal attached to and no nickel or other coating. The attractive/repulsive force of 2 identical magnets, in direct contact, is double this value.
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| Field Strengths (in gauss) at 5 Distances (in mm); Holding Force in 3 Units | ||||||||
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| Size (mm) | 0 | 0.1 | 1 | 10 | 100 | lbF | gms | N |
| 2.5x2.5x2.5 | 5.75E+03 | 5.33E+03 | 2.28E+03 | 2.30E+01 | 3.00E-02 | 1.0 | 443 | 4 |
| 5x5x5 | 5.75E+03 | 5.54E+03 | 3.74E+03 | 1.34E+02 | 2.40E-01 | 3.9 | 1773 | 17 |
| 10x10x10 | 5.75E+03 | 5.65E+03 | 4.71E+03 | 5.99E+02 | 1.81E+00 | 15.7 | 7098 | 70 |
| 12.5x12.5x12.5 | 5.75E+03 | 5.67E+03 | 4.91E+03 | 8.95E+02 | 3.42E+00 | 24.5 | 11091 | 109 |
| 25x25x25 | 5.75E+03 | 5.71E+03 | 5.33E+03 | 2.28E+03 | 2.30E+01 | 97.9 | 44409 | 436 |
All Rare Earth Magnets Organic Chemistry Molecular Model Sets, Permanent Neodymium Rare Earth Magnets, Magnifying Glasses, Test Strips, Lab Supplies, Tuning Forks
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