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HIGH ENERGY FLEXIBLE MAGNETS

High Energy Flexible Magnets are composed of a strontium ferrite powder mixture with polymer bonding. These magnets are most commonly formed as strip.














 

Manufacturing High Energy Flexible Magnets

The material goes through a calendering process and is formed into sheeting or strip. It can then be easily machined to size and magnetized. High-energy flexible magnets are anisotropic (oriented) , whereas the regular flexible material is not. Therefore, high-energy magnets are limited to magnetization through the thickness, and are similar in strength to a Grade 1 ceramic magnet.

 
Flexible Magnet Pole Patterns

A. Conventional Magnetization: Has one pole on each side of the magnet - North pole on one side, South pole on the other.

B. Multiple Pole (Standard): Two Poles (B1) or Multiple Poles (B2) on each side - two or more sets of poles on each surface are used in open circuit designs. North and South poles alternate through the thickness of the material. Steel backing is desirable where practical.

 
Attributes of High Energy Flexible Magnets
  • High resistance to demagnetization
  • Easy fabrication and handling
  • Free from chipping, cracking or shattering
  • Inexpensive
  • High energy product vs. regular flexible material
  • Adhesive or plain
  • Low curie point, not good in heat applications
Applications
  • Motors
  • Sensors
  • Latches
  • Magnetic Assemblies
 
High Energy
Flexible Material
Density
Maximum
Energy
Product
Residual
Induction
Br
Coercive
Force
Hc
Intrinsic
Coercive
Force (Hci)
(BH Max)
lbs/in 3
g/cm 3
MGO
Gauss
Oersted
Oersteds
1.1
128
3.542
1.10
2200
1900
2400
1.2
128
3.542
1.20
2300
1950
2400
1.3
128
3.542
1.30
2350
2000
2900
1.4
128
3.542
1.40
2450
2100
2900
 
Part No. Dimensions / inches Magnetization Max. Energy Product (BH Max)
Thickness Width Length Diameter
PSM10 0.060 0.50 48 ----- 2P.E.S. 1.1
PSM1-80CONV 0.060 2.00 1200 ----- Conv. 1.1
PSM30 0.125 0.50 48 ----- 2P.E.S. 1.3
PSM3-125-60 0.125 2.00 60 ----- Conv. 1.1
PSM50 0.125 3.00 24 ----- MP 1.4
PSM4-1254X5CN 0.125 4.00 60 ----- Conv. 1.3
PSM3-187-25CP 0.187 0.25 .50 ----- Conv. 1.4
PSM4-187-4X5CN 0.187 4.00 60 ----- Conv. 1.1
PSM1-250 0.250 0.50 60 ----- Conv. 1.1
PSM1-250-3X36C 0.250 3.00 36 ----- Conv. 1.1
RUB40(w/.1875"Hole) 0.187 0.75 1   Conv. 1.1
RR-RB20           · 0.125 ---- ---- 1.1250 Conv. 1.1
RD8125 0.125 ---- ---- 0.8125 MP 1.1
RD162MP 0.125 ---- ---- 1.6200 MP 1.1
 

KEY: Conv. = Conventional,   2P.E.S. = Two Poles Each Side. MP = Multiple Poles

          · = RR-RB20 has a .187"hole in center

Additional sizes and characteristics are available

  
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