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Magnetization Direction for Neodymium Magnets

Discs & Cylinders

Disc and Cylinder magnets can be axially or diametrically magnetized.

Diametrically Magnetized

 
Examples include D82DIA and D48DIA.

 

Blocks

Block magnets are defined by three dimensions: Length, Width and Thickness.  To be consistent, we define the Thickness dimension along the axis of magnetization.  The thickness is usually the smallest dimension, but not always!

We're sometimes asked if we can provide block magnets magnetized through the length or width.  Yes, we do have some long "bar" magnets, where the magnetization is in the longest dimension. We do still define this as the Thickness, though.

 

Rings

Ring magnets can be axially or diametrically magnetized.

Diametrically Magnetized

 
Examples include R424DIA and R828DIA.

 

Spheres

Spheres can only be axially magnetized.  There is only one possible direction.

 

Mounting Magnets

Round Mounting Magnets are assembled with an axially magnetized disc or ring magnet set inside a steel cup.  The north pole of the magnet faces outward.

Our Rectangular Mounting Magnets are constructed in a similar fashion.

 

Arc Segments

Arc Segment magnets can be magnetized in one of four directions.

South on the Outside Face


Examples include AX2C45-S and AY0X030-S.

Magnetized through Circumference


One example is the AY0X030-C.

Magnetized through Thickness


One example is the AY0X030-T.

 



Arc Magnetization with Poles on Inner & Outer Face


Note that the magnetization is along a straight axis, and is not truly radial.  The lines do not converge at the center of the arc.  When assembled, arc segments like this can be used to approximate a radially magnetized ring.

Circumferential Magnetization of Arc Segments


Again, the lines of magnetization are all parallel.  The lines do not curve around the arc.

 

July
Specials

SB6C4-OUT
15% Off
SB6C4-OUT

Stepped Block Magnets

SB8X04-IN
15% Off
SB8X04-IN

Stepped Block Magnets


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K&J Magnetics, Inc.
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