Which Magnet Suits Your Needs? – AMF Magnets New Zealand

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Which Magnet Suits Your Needs?

Which Magnet Suits Your Needs? - AMF Magnets New Zealand

Your choice of Magnet will largely depend on what your application is.

Some points to consider include are:

If the magnet is being used for holding or lifting something, what pull force do you require?
What is the operating temperature?
How far does the magnet need to operate, i.e. distance of the magnetic field?
Will the magnet be used in liquid or in an environment with high moisture levels?
Does the magnet need to be flexible?

Use the table below to determine which Type of Magnet is most suitable for your application:

	Ferrite	Rare Earth	Alnico	Samarium	Flexible
Size to strength ratio	Good	Excellent	Average	Excellent	N/A
Temperature stability	Very Good	Average	Excellent	Excellent	N/A
Corrosion resistance	Very Good	Good	Very Good	Excellent	N/A
Mechanical strength	Average	Average	Good	Average	Good
Distance of field	Excellent	Good	Average	Good	N/A

The Pull Force listed for each magnet is based on lifting 10mm thick steel from a horizontal surface. Magnets on a vertical surface (of 10mm thick steel) are generally able to hold around only 30% of the pull force listed in the product description. This is due to the effects of gravity and the lack of friction between the surface and the shiny magnet. Read More