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MAGNETS

 
 

MAGNETS

Magnet
Materials

$ /
Gauss

Strength MGOe

Permanence Hci Ease to Machine

Max.
Temp.

Deg. C

Optimum
Geometry
Dia : Thk

Field Depth

Neodymium

4 35-50 4 1 150 10 : 1 2

SmCo

3

18-26

5 2

300

8 : 1

3

Ceramic

5 5-8 3 2 300 6 : 1 3

Alnico

1

5-8

1 2

540?

1 : 4

5

Flexible

2? 1 2 5 100 Many
poles
1
 

Choosing a Magnet:
 To discover the specific magnetic performance your application requires we recommend:

Standards:
When choosing your magnet material remember; the data listed in these tables are for reference only. U.S. magnetic characteristics have standard tolerances set by the MMPA (Magnet Manufacturer & Producers Association). These standards are available upon request. They are the default standard if no specific standards are stated in a U.S. quotation. MIL-STD, Special Q.C., Certification and BH curves are available upon request.

Machining:
Magnet materials are difficult to machine, except Flexible and Bonded, because they are brittle and the dust sticks to everything. To have magnets cut is expensive ($150 minimum set up). To make a mold is expensive ($3500 min.). Designing your application around an industry standard magnet can SAVE YOU BIG MONEY. You can normally over design your magnet for your application.   In most cases an industry standard magnet, because it is mass produced and stocked, will cost less than the specific magnet you envision.

 


Flexible      Surplus Magnets

TYPICAL MAGNETIZATION PATTERNS


 

 

   
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