Magnetic Force Lifting Force Equation and Calculator

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The following is the equation and associated calculator to determine the the effective lifting force

As shown, a single magnet with one pole face secured to a lifting apparatus and the oppostie face of the magnet is then placed on a solid steel plate. The magnetic field holds the magnet to the steel plate.

The approximate lifting force of the magnet is:

Variables:  
Dm  
 Am
Calculated Data:
F (N) =

Where:

F = Force (Newtons)
Dm = magnetic flux per unit area of magnet ( Lines of magnetic flux per square meter, cgs unit of flux density , equivalent to lines per square inch in the English system, and Weber s per square meter or Tesla in the SI system. )
Am = area if the magnet contacting the steel plate. (m2)

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