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MAGNET DETAILED SURVEYS

Product Descriptions

Click on a magnet type below, or browse through our list of magnet products.

The Magnet Products Summary, listing the key magnetic properties for all available magnet grades, is located on our download page.

For assistance in choosing the right material, review our magnet selection guidelines.

Overview of Magnet Types and Available Grades

Koerdym I & C Acrobat PDFLiterature (261 KB)

Injection Molded RE-Fe-B & Compression Molded RE-Fe-B

These polymer bonded permanent magnets are manufactured using MQP isotropic RE-Fe-B powders. They can be made by either compression molding (Koerdym C) or injection molding (Koerdym I) techniques. These materials offer energy products ranging from about 32 to 86 kJ/m3, and offer good magnetic and thermal stability, in combination with diverse capabilities for net-shaping of close-tolerance parts. Using insert and composite techniques, injection molding makes it possible to connect magnets directly to shafts or other components, offering new and cost-effective solutions in design and manufacture.

Koerdym C Summary Table Acrobat PDF(32 KB)

  (BH) max Br HcJ HcB
Grade kJ/m3 MGOe mT G kA/m Oe kA/m Oe
Koerdym C 60EP    60 7.54 600 6000 1100 13816 485 6100
Koerdym C 61EP 61 7.7 605 6050 1190 14953 400 5000
Koerdym C 63EP 63 7.91 610 6100 950 11932 410 5200
Koerdym C 64EP 64 8.1 635 6350 1010 12691 485 6100
Koerdym C 68EP 68 8.8 620 6200 670 8419 640 8000
Koerdym C 80EP 80 10.05 700 7000 680 8545 455 5700
Koerdym C 83EP 83 10.4 660 6600 760 9550 475 6000
Koerdym C 86EP 86 10.8 710 7100 560 7037 400 5000

*All values are typical

Koerdym I Summary Table Acrobat PDF(32 KB)

  (BH) max Br HcJ HcB
Grade kJ/m3 MGOe mT G kA/m Oe kA/m Oe
Koerdym I 32PA 32 4 450 4500 1000 12566 300 3770
Koerdym I 35PA 35 4.4 480 4800 650 8168 300 3770
Koerdym I 38PA 38 4.8 490 4900 1000 12566 320 4021
Koerdym I 39PA 39 4.9 480 4800 590 7414 310 3896
Koerdym I 42PA 42 5.3 520 5200 650 8168 320 4021
Koerdym I 43PA 43 5.4 520 5200 760 9550 330 4147
Koerdym I 47PA 47 5.9 550 5500 550 6912 330 4147

*All values are typical

Koerdym S Acrobat PDFLiterature (184 KB)

Sintered RE-Fe-B

Koerdym S grades are anisotropic RE-Fe-B permanent magnets made by the powder metallurgy process that results, after magnetic alignment and sintering, in oriented metal magnets exhibiting >99% of theoretical density. These materials offer the highest energy products of any permanent magnets, with available grades ranging from 220-400 kJ/m3. Magnets are typically machined or ground to final dimensions, and are usually coated to protect against the external environment.

Koerdym S Summary Table Acrobat PDF(32 KB)

  (BH) max Br HcJ HcB
Grade kJ/m3 MGOe mT G kA/m Oe kA/m Oe
Koerdym S 50M 398 50 1430 14300 950 11941 915 11501
Koerdym S 48A 374 47 1390 13900 1195 15021 1050 13198
Koerdym S 41B 327 41 1310 13100 1354 17019 960 12067
Koerdym S 45A 358 45 1370 13700 1195 15021 1025 12884
Koerdym S 43A 343 43 1340 13400 1194 15008 985 12381
Koerdym S 42A 334 42 1310 13100 1195 15021 1025 12884
Koerdym S 46B 358 45 1360 13600 1020 12821 1020 12821
Koerdym S 40A 319 40 1280 12800 1194 15008 1000 12570
Koerdym S 40HC 319 40 1290 12900 1553 19521 940 11815
Koerdym S 38KC 303 38 1260 12600 1712 21519 985 12381
Koerdym S 37B 295 37 1250 12500 1354 17019 920 11564
Koerdym S 36HC 287 36 1230 12300 1553 19521 960 12067
Koerdym S 35UC 279 35 1200 12000 2150 27025 900 11313
Koerdym S 34KC 271 34 1200 12000 1712 21519 915 11501
Koerdym S 31UC 247 31 1140 11400 2150 27025 850 10684
Koerdym S 31VC 247 31 1130 11300 2627 33021 865 10873
Koerdym S 28VC 223 28 1080 10800 2627 33021 810 10181

*All values are typical

Koerox I Acrobat PDFLiterature (180 KB)

Injected Molded Ferrite

Koerox I magnets are hard ferrite plastic bonded magnets made by injection molding. These materials can be either isotropic or anisotropic. As well as the low cost and wide availability of raw materials, they offer good mechanical properties, high edge strength and the advantage that they can be molded to almost any shape with close tolerances. Using insert and composite techniques, injection molding makes it possible to connect magnets directly to shafts or other components, offering new and cost-effective solutions in design and manufacture.
New Products: KOEROX I, high loaded injection molded ferrite

Koerox I Summary Table Acrobat PDF(34 KB)

  (BH) max Br HcJ HcB
Grade kJ/m3 MGOe mT G kA/m Oe kA/m Oe
Koerox I 1/20 PA 1.7 0.21 103 1030 220 2765 70 880
Koerox I 2/20 PA 2.7 0.34 128 1280 220 2765 86 1081
Koerox I 5/22 PA 5.2 0.65 170 1700 220 2765 120 1508
Koerox I 6/22 PA 6.7 0.84 190 1900 220 2765 131 1646
Koerox I 9/22 PA 8.9 1.12 219 2190 220 2765 151 1898
Koerox I 9/30 PA 8.9 1.12 220 2200 300 3770 151 1898
Koerox I 10/22 PA 10.3 1.29 236 2360 220 2765 157 1973
Koerox I 12/23 PA 11.5 1.45 250 2500 230 2890 161 2023
Koerox I 13/24 PA 13 1.63 265 2650 235 2953 173 2174
Koerox I 14/24 PA 14.3 1.8 276 2760 230 2890 175 2199
Koerox I 8/20 PS 7.5 0.94 200 2000 195 2450 134 1684
Koerox I 8/29 PS 7.4 0.93 205 2050 300 3770 136 1709
Koerox I 9/18 PS 10.2 1.28 235 2350 180 2262 147 1847
Koerox I 11/18 PS 11.7 1.47 250 2500 167 2099 138 1734

*All values are typical

Koerox S

Sintered Hard-Ferrite

Sintered hard-ferrite magnets are used in both isotropic and anisotropic styles. These magnets remain fully functional even under extreme conditions (-40°C to +200°C, corrosion effects) and so can be used in many applications.

As Koerox S is a low-cost magnetic material, KOLEKTOR MAGNET TECHNOLOGY GmbH provides its customers with competitive prices by cooperating with qualified international sources.

Koerox S Summary Table Acrobat PDF(35 KB)

  (BH) max Br HcJ HcB
Grade kJ/m3 MGOe mT G kA/m Oe kA/m Oe
Koerox S 100 9 1.13 230 2300 290 3644 155 1948
Koerox S 150 12 1.51 270 2700 290 3644 175 2199
Koerox S 300 24 3.02 365 3650 240 3016 210 2639
Koerox S 310 25 3.14 370 3700 270 3393 250 3142
Koerox S 320 28 3.52 390 3900 250 3142 240 3016
Koerox S 330 26 3.27 370 3700 260 3267 240 3016
Koerox S 350 29 3.64 390 3900 310 3896 270 3393
Koerox S 360 30 3.77 400 4000 175 2199 170 2136
Koerox S 400 31 3.90 400 4000 260 3267 255 3204
Koerox S 420 34 4.27 420 4200 270 3393 265 3330

*All values are typical

Koerox HI Acrobat PDFLiterature (84 KB)

Hybrid Injection Molded Ferrite/RE-Fe-B

Koerox HI magnets are hybrid injection molded plastic bonded magnets that involve the simultaneous use of both hard ferrite and MQP isotropic RE-Fe-B powders to achieve magnet cost/performance targets beyond what is possible using either material alone. The ratio of ferrite to RE-Fe-B in the material mix can be tailored to meet specific technical requirements for new, previously inaccessible applications. These materials also have interesting reversible temperature dependent magnet properties owing to the different temperature coefficients of ferrite and RE-Fe-B. Of course, Koerox HI magnets also offer all the advantages of injecting molding for achieving innovative design and manufacturing solutions.

Koerox HI Summary Table Acrobat PDF(33 KB)

  (BH) max Br HcJ HcB
Grade kJ/m3 MGOe mT G kA/m Oe kA/m Oe
Koerox HI 19 PA 18.5 2.32 315 3150 280 3519 215 2702
Koerox HI 22 PA 22.4 2.81 345 3450 300 3770 220 2765
Koerox HI 28 PA 28 3.52 390 3900 320 4021 245 3079

*All values are typical

Koerzit S Acrobat PDFLiterature (134 KB)

Sintered AlNiCo

These permanent magnets are based on AlNiCo produced by a powder metallurgy process and typically finished by grinding. They can be isotropic or anisotropic, and are available having a wide range of magnetic properties, depending on the composition and process parameters during manufacturing. These materials are known for their high remanence, as well as low temperature dependence of magnetic properties, and maximum use temperatures up to 500 ºC.

Koerzit S Summary Table Acrobat PDF(33 KB)

  (BH) max Br HcJ HcB
Grade kJ/m3 MGOe mT G kA/m Oe kA/m Oe
Koerzit S 130 10.3 1.3 550 5500 57 716 54 679
Koerzit S 160 13.5 1.7 650 6500 60 754 57 716
Koerzit S 190 16.7 2.1 750 7500 62 57 60 754
Koerzit S 260 22.3 2.8 640 6400 114 1433 105 1319
Koerzit S 400 31.8 4 1100 11000 65 817 64 804
Koerzit S 500 41.4 5.2 1240 12400 51 641 51 641
Koerzit S 450 43.8 5.5 880 8800 119 1495 115 1445
Koerzit S 1800 43.8 5.5 740 7400 160 2011 150 1885

*All values are typical

 
 

 

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