Flexible Rubber Magnet

Fairly week magnetic power (Power-Index(1) = 1~3)
Fairly low cost (Cost-Index(2) = 2~3)
Isotropic & Anisotropic available(3)
Produced by consolidating Strontium or Barium ferrite powder with polymer matrix. Form in profiles, strips & sheets by extrusion or calendering method, with optional self-adhesive backing.
With rubber-based characteristic; very flexible & bendable; product can be easily stamped, slit, punched & laminated
Good resistance to demagnetization and reasonable resistance to chemical agents
Average temperature stability

 
Physical Properties
Parameter
Density 3.6 ~ 3.8 g/cm3
Hardness 92 ~ 97 Hs (A)
Tensile strength 58 ~ 78 kg/cm2
Elongation 125 ~ 165 %
Saturation Field Strength 10kOe 800kA/m
Temperature range -40 ~ +80°C
Flexibility No crack when twisting arounda testing bar with Ø20-Ø40
Twist No crack at twist with 180° twice
Production Flow Chart
 
Dimension Range
Magnetic Strip by Injection 
Width =2mm~40mm
Thick =1mm~8mm
Length <=60M Roll
Magnetic Sheet by Compression
Length <=800mm
Width <=610mm
Thick =0.3mm~8.0mm
Magnetic Sheet Roll Form by Compression
Width <=610mm
Thick =0.5mm~2.0mm
Length <=60M Roll
Magnetization Options
• Unilateral multipolar
• Unilateral bi-polar
• Thru thickness
Additional information
Flexible magnets don’t crack or break. Meanwhile the products can absorb shock and sound, so it is good for dc-motor which requires low noise.
Anisotorpic flexible magnet has magnetic properties higher than isotropic flexible magnets (about 30% higher) mainly tailored for dc-motors or strong holding applications. Isotropic flexible magnets are good for promotional, advertising and educational purposes.
Dimension and shape can be in large sheet, large roll, or any size customer prefers. For tailor-made size mould fee ranges from one to several hundred US dollars only.
Self-adhesive backing is available.
Color PVC-laminated flexible magnet available in sheet and roll forms.
Color printing on flexible magnet is available (artwork printed on PVC laminated on the magnet); can tailor cut to preferred shape.
 
Magnetic Properties       
Material
Isotropic/
Anisotropic
Remanence
Coercivity

Intrinsic
Coercivity

Max.
Energy Product
Grade
Anisotropic
Br (mT)
Br (Gs)
bHc (kA/m)
bHc (Oe)
iHc (kA/m)
iHc (Oe)
(BH) max (KJ/m)
(BH) max (MGOe) 
MR-7L
Isotropic
165
+/-10
1,650
+/-100
108
+/-8
1,350
+/-100
132+/-8
1,650
+/-100
5.2
+/-0.4
0.65
+/-0.05 
MR-7H
Isotropic
170
+/-10
1,700
+/-100
112
+/-8
1,400
+/-100
136+/-8
1,700
+/-100
5.6
+/-0.4
0.70
+/-0.05 
MR-10
Semi-aniso
220
+/-5
2,200
+/-50
136
+/-8
1,700
+/-100
160+/-8
2,000
+/-100
8.0
+/-0.4
1.00
+/-0.05 
MR-12
Anisotropic
245
+/-5
2,450
+/-50
140
+/-8
1,750
+/-100
148+/-8
1,850
+/-100
11.2
+/-0.4
1.40
+/-0.05 
MR-12BH
Anisotropic
247.5
+/-2.5
2,475
+/-25
168
+/-8
2,100
+/-100
224+/-8
2,800
+/-100
12.0
+/-0.4
1.50
+/-0.05 
 
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