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| Ferrite magnets |
| HOME >> Products >> Ferrite magnets |
China Ningbo Tongchuang Strong Magnet Material CO.LTD. is a high-tech company specializing in NdFeB magnet and magnetic materials, magnetic hook, hook magnet manufacturer, researching, developing and applications. We also are manufacturing and marketing other custom magnetic hooks, hook magnets permanent magnets, such as Sm-Co, Al-Ni-Co, hard ferrites and rubber magnets. ISO 9000 QC systems is through our all production processes, with the assistance of advanced testing and inspection equipments and techniques. We also take RoHS requirement as the guideline in material selection. Tongchuan magnets have been used widely in small motors, instruments, electronic devices, auto parts, MRIs, Speakers and a great variety of other applications. |
| National standard –Permanent Ferrite magnet standard |
Grade |
Value(min/typical in our factory |
Br |
Hcb(BHC) |
Hcj(IHC) |
(BH)max |
MT |
KG |
KA/m |
Koe |
KA/m |
KOe |
Kj/m 3 |
MGOe |
Y10T(=C1) |
200/218 |
2.00/2.18 |
125/145 |
1.57/1.82 |
210/250 |
2.64/3.14 |
6.5/8.0 |
0.8/1.0 |
Y25 |
360/370 |
3.60/3.70 |
135/150 |
1.70/1.88 |
140/170 |
1.76/2.14 |
22.5/25.3 |
2.8/3.2 |
Y30(=C5) |
380/385 |
3.80/3.85 |
191/210 |
2.40/2.64 |
199/220 |
2.50/2.51 |
26.0/28 |
3.4/3.7 |
Y30BH |
380/390 |
3.80/3.90 |
223/235 |
2.80/2.95 |
231/245 |
2.90/3.08 |
27.0/30.0 |
3.4/3.7 |
Y33 |
410/420 |
4.10/4.20 |
220/235 |
2.77/2.95 |
225/240 |
2.83/3.01 |
31.5/33.0 |
4.0/4.2 |
Y35 |
400/410 |
4.00/4.10 |
175/195 |
2.20/2.45 |
180/200 |
2.26/2.51 |
30.0/32.0 |
3.8/4.0 |
C8(=C8A) |
385/390 |
3.85/3.90 |
235/255 |
2.95/3.20 |
242/265 |
3.05/3.33 |
27.8/30.0 |
3.5/3.7 |
C10 |
400/410 |
4.00/4.10 |
288/300 |
3.62/3.77 |
280/287 |
3.51/3.60 |
30.4/31.9 |
3.8/4.0 |
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Physical property of hard ferrite mangets
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Parameters |
Mark |
Unit |
Value |
Recoil Permeability |
Urce |
- |
1.05-1.3 |
Curie temperture |
Tc |
0 C |
460 |
The temperature of Br |
± Br |
0 C -1 |
-0.2% |
The temperature of Hcj |
± Hcj |
0 C -1 |
0.2-0.5% |
Density |
D |
g/cm 3 |
4.5-5.1 |
Resistivity |
P |
©.cm |
0 4 |
The coefficient of linear expansion |
R |
0 C -1 |
7-15x10 -6 |
Hardness |
HV |
- |
480-580 |
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Product Description
Hard Ferrite magnets (ceramic magnets), are mainly manufactured by SrO or BaO and Fe2O3. There are two production methods: Dry press and Wet press. The dry process is used for istropic and anistropic material, and the wet method applies only to the production of anistropic material.
The elements of Ferrite magnet are ferric oxide、barium、strontium. Ferrite has higher coercive force and higher resistance to be demagnetized and oxidized than other non-rare earth permanent magnets. The biggest advantage of such magnet is their low cost. It is widely used from motors and loudspeakers to toys and craft etc.
Ferrite magnets have good resistance to demagnetization, excellent corrosion resistance, and especially popular advantage of low cost. However, They are very hard, brittle and limited to simple size. The mould charge is vey expensive too. This class of magnets have lower energy characteristics compared to other magnetic materials.
Due to their low cost, Ferrite magnets enjoy a very wide range of applications, from motors, loudspeakers, toys and crafts, etc. They are the most widely used magnetic material today.
If you are interested in our Ferrite magnets,please Show the following magnets detail for us to quote you prices:
1.Magnet size and Dimension ,if special shape ,please offer Magnets drawing.
2.Magnetism grade
3.Order Quantities
4.Delivery method
By sea or by air or by air express door to door ,also show your destination port. |
Our factory produce and manufacture magnets according to customer's design on shape, dimension, grades, coatings etc. |
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| Contact us |
Ningbo Tongchuang Strong Magnet Material Co., Ltd
Add: Xinzhuang Gaoqiao Yinzhou District,Ningbo City,China
TEL: 86-574- 88170908, 88089786
Fax: 86-574- 88170906, 88089789
E-mail: sales@ndmagnets.com (General Inquiry)
MSN ID: tcmagnet@hotmail.com (On line Chatting) |
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