Souwest Magnetech Ferrite Magnets
Ferrite magnets are permanent magnets in chinamade mainly from SrO or BaO and Fe2O3-- They are electrically insulating so current does not pass through them due to their extremely high electrical resistance, hence their other name of Ceramic Magnets. Compared with other permanent magnets, ferrite bar magnetsare hard and brittle, with lower magnetic energy. However, it is not easy to demagnetize and corrode, and the production process is simple and inexpensive. Therefore, ferrite disc magnetshave the highest production volume in the whole magnet industry and are widely used in other industries.
What Are The Differences Between Hard Magnets and Soft Magnets of Ferrite Magnets
Hard Magnets
The ferrite used in permanent magnets is hard ferrite, which has high coactivity and reminisces after magnetization. Iron oxide and barium carbonate or strontium carbonate are used to make hard ferrite. Because of their high coactivity, hard ferrites are not easily demagnetized, which is an important characteristic of permanent magnets. Hard ferrites can produce magnetic flux and also have a high magnetic permeability. Hard ferrites, also known as ceramic magnets, are inexpensive and are commonly used in household products (e.g. refrigerator magnets).
Soft Magnets
Ferrites used in transformers or electromagnet cores that include nickel; zinc or manganese compounds have a low coactivity and are generally referred to as soft ferrites. The low coactivity means that the magnetization strength of the material can be changed from positive to negative without consuming much energy (hysteresis), and the high resistivity of the material itself reduces another source of energy loss: the generation of eddy currents. Due to the low losses at high frequencies, it is commonly used in the cores of RF transformers and in the reactors used in switching power supplies.
Magnetic Properties of Ferrite Magnets
Standard of Ferrite Magnets
Material |
Remanence |
Coercivity |
Intrinsic Coercivity |
|||||
Br |
Hcb |
Hcj |
(BH)max |
|||||
MT |
KG |
KA/m |
KOe |
KA/m |
KOe |
KJ/m3 |
MGOe |
|
C1 |
230 |
148 |
258 |
|||||
C5 |
380 |
191 |
199 |
27 |
||||
C7 |
340 |
258 |
318 |
4 |
||||
C8A |
385 |
235 |
242 |
|||||
C8B |
420 |
232 |
236 |
|||||
C9 |
380 |
280 |
320 |
|||||
C10 |
400 |
4 |
288 |
280 |
||||
C11 |
430 |
200 |
204 |
Special Ferrite Segment Magnetic Properties Table
Grade |
Mag Spring |
MS Y30 |
MS Y35H-1 |
MS Y35H-2 |
MS Y35H-3 |
MS Y35H-4H |
MMPA |
C8 |
C8D |
C8B |
|||
TDK |
FB4B |
FB4D |
FB4G |
|||
Br |
Type |
395(3950) |
405(4050) |
400(4000) |
415(4150) |
380(3800) |
mT(Gs) |
min |
385(3850) |
395(3950) |
390(3900) |
405(4050) |
370(3700) |
Hcb |
Type |
200(2500) |
255(3200) |
279(3500) |
235(2950) |
286(3600) |
KA/m(Oe) |
min |
176(2200) |
251(3150) |
236(3300) |
223(2800) |
270(3400) |
Hcj |
Type |
205(2570) |
263(3300) |
287(3600) |
243(3050) |
342(4300) |
KA/m(Oe) |
min |
184(2300) |
255(3200) |
275(3450) |
231(2900) |
326(4100) |
(BH)max |
Type |
|||||
KJ/m 3 |
||||||
(MGOe) |
min |
Grade |
Mag spring |
MS Y38B |
MS Y38H |
MS Y40E |
MS Y40B |
MS Y45E |
MS Y45B |
MMPA |
C12 |
C9 |
|||||
TDK |
FB5B |
FB5H |
FB6E |
FB6B |
FB9H |
FB6N |
|
Br |
Type |
420(4200) |
405(4050) |
380(3800) |
420(4200) |
430(4300) |
440(4400) |
mT(Gs) |
min |
410(4100) |
395(3950) |
370(3700) |
410(4100) |
420(4200) |
430(4300) |
Hcb |
Type |
263(3300) |
298(3750) |
290(3650) |
302(3800) |
330(4150) |
259(3250) |
KA/m(Oe) |
min |
251(3150) |
287(3600) |
279(3500) |
290(3650) |
318(4000) |
247(3100) |
Hcj |
Type |
267(3350) |
322(4050) |
398(5000) |
318(4000) |
398(5000) |
263(3300) |
KA/m(Oe) |
min |
255(3200) |
311(3900) |
382(4800) |
307(3850) |
386(4850) |
251(3150) |
(BH)max |
Type |
||||||
KJ/m 3 |
|||||||
(MGOe) |
min |
FAQs About Ferrite Magnets
What are ferrite magnets used for?
Hard ferrites are used to make permanent magnets such as refrigerator magnets, speakers and small electric motors. Soft ferrites have low interactivity, so they easily change magnetization, acting as conductors of magnetic fields.
Are ferrite magnets safe?
Magnets are incredibly useful and fun, but they also have danger. Ferrite magnets can shatter into pieces if you apply force repeatedly. Fragments of the broken magnet may cause injury to the user or stand.
How do you cut a ferrite magnet?
Ferrite cannot be cut with ordinary tools. However, it is possible to use the heating ring cutting method. Specifically, a resistance wire is used to form a ring at the prepared cutting point to form a large temperature difference through a large current and then quickly cooled.
Now the ferrite magnet priceis reasonable, if you have needs, please contact us.
If you want to know more applications of magnetic materials, please visit our website.
在线联系供应商
Other supplier products
Magnetic Steel Chamfer | Magnetic Steel Chamfer As one of the three precast concrete magnets, magnetic chamfers can be classified into rubber type and steel type according... | |
Shallow Pot Magnet | A shallow pot magnetis a type of pot magnet, which is clearly different from a deep pot magnet. It is usually used for holding, fixing, and grippin... | |
Double Sided Fishing Magnet | Double sided magnet for fishingis designed explicitly for magnet fishing. The users will not have to worry about the magnet's orientation in the wa... | |
Fishing Magnet Accessories | Fishing magnet accessories including Fishing Magnet Rope, Fishing Magnet Toolbox, Threadcoker and Fishing Magnet Glove for your needs. Specifica... | |
Rubber Magnets | custom rubber magnetsis one of the ferrite magnet series. It is a soft, flexible and twistable magnet made of bonded ferrite powder compounded with... |
Same products
用于高频感应管焊接的实芯磁芯铁氧体磁棒软磁材料可提高焊接过程的效率 | 卖方: 837294 | 用于高频感应管焊接的实芯磁芯铁氧体磁棒软磁材料可提高焊接过程的效率 用于钢管焊接的铁氧体磁棒:高频感应焊接是钢管制造的常用工艺。铁氧体磁芯在提高焊接工艺效率方面起着至关重要的作用。铁氧体磁芯的... | |
高频感应管焊接用空心铁心铁氧体软磁材料提高焊接工艺效率 | 卖方: 837294 | 高频感应管焊接用空心铁心铁氧体软磁材料提高焊接工艺效率 特点:呈放射状沟槽型,有中心孔,可向内径部分注入冷却水,可有效冷却磁芯整体。此外,还可向内径插入固定器支杆。 | |
Rare Earth Permanent Round NdFeB Countersunk Magnet | 卖方: Dongyang Ma Li Magnet Co., Ltd. | Rare Earth Permanent Round NdFeB Countersunk Magnet are made of NdFeB Ceramic Powder, which is th... | |
Pot Magnets With Countersunk(Screw) Hole | 卖方: NingBo BeiLun Meank Magnetics Co.,ltd. | A compact magnet system consisting of a steel shell with high permeability and a countersunk magn... | |
Channel Magnets-Rectangular Mounting Pot Magnets | 卖方: NingBo BeiLun Meank Magnetics Co.,ltd. | The magnet assembly composed of a U-shaped ferromagnetic iron shell and a rectangular magnet is c... |