A pot magnet comprises a cylindrical permanent magnet assembled concentrically in a steel pot. The pot is an essential part of the magnetic circuit, providing the return path for th flux.....
A pot magnet comprises a cylindrical permanent magnet assembled concentrically in a steel pot. The pot is an essential part of the magnetic circuit, providing the return path for th flux. The two poles are concentric, in the same plane, on an end face.
POT MAGNETS - APPLICATIONS
Pot magnets are among the most efficient of all magnet manufactures for gripping. (Other manufactures are preferable for lifting and attractive duties across gaps).
Pot Magnets
POT MAGNETS - GENERAL FEATURES
There is no stray flux as the magnetism is retained in a closed circuit.
The pot screens the magnet proper from demagnetising effects.
The pot is readily machinable.
Can be inserted into, or fitted to steel without adverse effect. (This cannot be done with unscreened
magnets).
The magnet proper has the most efficient of all magnet shapes - a plain cylinder, magnetised
lengthways.
Concentration of magnetic flux in the mild steel, possibly up to twice the density of the flux in the
permanent magnet. Grip varies as the square of the flux density, so this is specially advantageous.
Depth of field small compared with that of magnets with poles father apart (Such as horseshoes), but
grip in intimate contact vastly superior to that of non-composite magnets of similar weight.
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