The attraction of a magnet depends on the type of magnet. Different kinds of magnets have different forces. Take the strongest magnetic ndFeb as an example. It is often said that the magnetic force of NdFeb is more than 600 times its own. In fact, this statement is a little too one-sided, then we calculate how to calculate the attraction of Ndfeb. However, due to more specifications and shapes, some may be perforated and the calculation is complex. We just use simple circles and squares.
Neodymium magnets, for example, are 30mm x 15mm x 5mm.
The formula for calculating the attraction of magnets
Magnet volume × density × 600(multiple)
Magnet density: The density of n35 is about 7.5g/cm3.
Magnet weight: volume × density (30mm× 15mm× 5mm)× 0.0075 = 16.875g.
Appeal :16.875 x 600 = 10125g
A 30mm x 15mm x 5 square magnet is known to attract about 10.1kg of adsorbable objects.
Take the 200mm x 5mm N35 neodymium magnet as an example. Suction is equal to (10 radii × 10 radii × 3.14× 5 thickness) volume × 0.0075 density × 600 times =7065g (g). This means that a 20 x 5 N35 magnet can absorb 7.065kg. If the magnet you want to calculate is of these two specifications, you can directly
Of course, the above values are only theoretical values, not necessarily accurate. Accurate data can be obtained by practicing the above methods.
