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Polymer Bonded Magnets

Injection molded polymer bonded magnets are made from magnetic compound mixed with bonding agents to create an injection moldable material.  The two main types are bonded ceramic and bonded rare-earth.  Once a tool has been made then polymer bonded magnets can be made rapidly to exacting dimensions.  Polymer bonded magnets can be made to unusual shapes and have specific magnet orientations.  Polymer bonded usually have a low working temperature due to the bonding agent.

Polymer Bonded Ferrite

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Polymer Bonded Rare Earth

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polymer bonded magnet

injection moulded magnet

  Br bHc iHc BH MAX Magnetising
Force		 Max Working
Temp		 Density
Grade mT Gauss kA/m Oersted kA/m Oersted kJ/m3 MGO kA/m Oersted °C grams/cc
PBFA1.5 N6 250 2500 179 2250 231 2900 11.9 1.5 720 9000 145 3.37
PBFA1.8 N6 275 2750 175 2200 211 2650 14.3 1.8 720 9000 145 3.62
PBFA2.0 N6 286 2860 183 2300 215 2700 15.9 2 720 9000 145 3.76
PBFA1.5 N12 247 2470 183 2300 239 3000 11.9 1.5 720 9000 145 3.3
PBFA1.8 N12 272 2720 183 2300 223 2800 14.3 1.8 720 9000 145 3.51
PBFA2.0 N12 292 2920 175 2200 199 2500 15.9 2 720 9000 145 3.72
PBFA1.65 PPS 260 2600 159 2000 183 2300 13.13 1.65 720 9000 145 3.5
PBFA1.8 PPS 270 2700 167 2100 183 2300 14.33 1.8 720 9000 145 3.66
PBFA1.6 EEA 250 2500 191 2400 263 3300 12.73 1.6 720 9000 145 3.32
PBFA1.8 EEA 268 2680 191 2400 267 3350 14.33 1.8 720 9000 145 3.5
PBSmCo 580 5800 380 4750 720 9000 56 7 2400 30000 60 5.1
PBN6 530 5300 350 4450 735 9300 48 6.1 2400 30000 150 5.0
PBN10 680 6800 490 5800 720 9100 80 10 2400 30000 150 5.9

Colour = Polymer Bonded Ferrite
Colour = Polymer Bonded Samarium Cobalt
Colour = Polymer Bonded Neodymium

 

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