Products
The magnets we produce are used in your familiar environments such as automobiles, home appliances, housing equipment, and office equipment.
There are various types of magnets. Our injection-molded magnet is molded in a mold using a composite material made by kneading magnetic powder and a resin binder. It is also called a plastic magnet and has the following features.
Complex shapes | Monolithic molding with other parts | High dimensional accuracy |
Impact resistance | Lightweight |
Ferrite injection molded magnet
Strontium ferrite is used for the magnetic powder.
It has good cost performance.
Rare earth injection molded magnet
A magnet that uses rare earth metals (neodymium and samarium) as magnetic powder.
Although it is more expensive than the ferrite type, it features high magnetic properties.
Injection molded magnet assembly
Injection molding magnet, metal parts, and resin (PPS, PBT, POM, PC, etc.) are integrally molded.
By doing this, there are advantages such as improved performance and accuracy, reduced man-hours, and prevention of cracking by press fitting.
Sintered/compression molded magnet assembly
We also handle insert molding of fragile magnets such as sintered and compression molded magnet.
We have extensive experience in automobiles and office automation equipment.
Material property Guide
Ferrite
| ・Rustproof | ・Affordable |
| ・Multi-pole magnetization available |
| Binder | PA12 | PPS |
|---|---|---|
| Br[mT][G] | 291（2910）～217（2170） | 269（2690）～232（2320） |
| HcB[kA/m][Oe] | 183（2300）～167（2100） | 175（2200）～159（2000） |
| HcJ[kA/m][Oe] | 207（2600）～259（3250） | 199（2500）～183（2300） |
| (BH)max[kJ/m3][MGOe] | 16.6(2.08)～9.0(1.13) | 14.3(1.8)～107(1.34) |
| Temperature coefficient (Br)[%/℃] | -0.185 | |
| Heat distortion temperature [° C] | 115～103 | 208～205 |
| Density [g / cm3] | 3.80～3.05 | 3.64～3.34 |
SmFeN
| ・High magnetic properties | ・Hard to rust |
| Binder | PA12 | |
|---|---|---|
| Br[mT][G] | 810（8100）～600（6000） | |
| HcB[kA/m][Oe] | 533（6700）～430（5400） | |
| HcJ[kA/m][Oe] | 756（9500）～724（9100） | |
| (BH)max[kJ/m3][MGOe] | 115(14.4)～68(8.5) | |
| Temperature coefficient (Br)[%/℃] | -0.07 | |
| Heat distortion temperature [° C] | 120～130 | |
| Density [g / cm3] | 4.9～4.0 | |
NdFeB
| ・High magnetic properties | ・Easy to magnetize (Isotropic) |
| ・Easy to rust. But progress to the inside is little |
| Binder | PA12 | PPS |
|---|---|---|
| Br[mT][G] | 641（6410）～435（4350） | 580(5800) |
| HcB[kA/m][Oe] | 533（6700）～305（3850） | 374(4700) |
| HcJ[kA/m][Oe] | 395（4960）～748（9400） | 696(8750) |
| (BH)max[kJ/m3][MGOe] | 72.2(9.1)～33.4(4.2) | 55.7(7.0) |
| Temperature coefficient (Br)[%/℃] | -0.10 | |
| Heat distortion temperature [° C] | 130～140 | 200 |
| Density [g/cm3] | 5.5～4.2 | 5.1 |
SmCo
・High heat resistance
・Hard to rust even at high temperatures
| Binder | PA12 | PPS |
|---|---|---|
| Br[mT][G] | 685(6850)～480(4800) | 592(5920)～416(4160) |
| HcB[kA/m][Oe] | 478(6010)～364(4580) | 414(5180)～325(4080) |
| HcJ[kA/m][Oe] | 848(10660)～896(11260) | 864(10860)～857(10770) |
| (BH)max[kJ/m3][MGOe] | 87.5(11.0)～45.4(5.7) | 64.8(8.1)～34.6(4.4) |
| Temperature coefficient (Br)[%/℃] | -0.035 | |
| Heat distortion temperature [° C] | 130～140 | 210～230 |
| Density [g/cm3] | 6.2～4.5 | 5.4～4.2 |
