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| Categories | Permanent Ferrite Magnet | 
|---|---|
| Brand Name: | XINHENG | 
| Model Number: | W4136A | 
| Certification: | IATF16949,ISO9001 | 
| Place of Origin: | Sichuan, China | 
| MOQ: | 1000pcs | 
| Price: | Negotiation | 
| Payment Terms: | T/T, L/C, D/P, T/T, Western Union, MoneyGram | 
| Supply Ability: | 10000 ton per year | 
| Delivery Time: | 10-15days | 
| Packaging Details: | Carton+pallet | 
| Product name: | Ferrite Motor Magnets | 
| Application: | Motorcycle Motor,Starting Motor | 
| Shape: | Arc,Tile | 
| Type: | Anisotropic sintered magnet | 
| Composite: | Ferrite strontium powder | 
| Size: | (R41.5mm-r24.5mm)×55.00mm | 
| Processing: | Wet molding | 
| Coating: | No Coating | 
| Package size: | 340mm×255mm×75mm | 
| Company Info. | 
| Sichuan Xinheng Magnetic Materials Co., Ltd | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
Circular Arc Segment Permanent Magnet Ferrite Is Used In Motorcycle Motor W4136A
Our company manufactures an-isotropic ceramic strontium ferrite magnet made by means of wet compression molding.
What's the feature of ceramic strontium ferrite magnet made by wet compression molding?
Composition - Contain strontium ferrite (SrFe12O19) as the primary magnetic material. Strontium ferrite has good magnetic properties and is inexpensive to produce.
Density - Have a high relative density of around 95% or more after sintering. This gives good mechanical strength.
An-isotropy - Exhibit strong magnetocrystalline an-isotropy due to their hexagonal crystal structure. This results in a preferred direction of magnetization along one axis.
Particle shape - The strontium ferrite powder used typically has a hexagonal platelet morphology which helps promote magnetic an-isotropy during molding and sintering.
Molding method - The powder is mixed with a liquid binder and compression molded into a dense green compact using high pressures. This orients the an-isotropic particles.
Firing process - The compact is then sintered at high temperature to develop density while preserving the induced magnetic anisotropy orientation from molding.
Remanence - Have a maximum magnetic flux density or remanence along the axis of anisotropy, but little/no remanence perpendicular to it.
Coercivity - Usually have medium to high coercivity depending on additives, density, and anisotropy level achieved.
What's the key advantages of ceramic strontium ferrite magnets made by wet compression molding?
Low cost - Strontium ferrite is inexpensive and the wet molding process is relatively simple. This makes them cheaper than rare-earth magnets.
High magnetic property-Even without heavy rare earth element additions, strontium ferrite magnets can achieve coercivities of 700-1000 kA/m, making them suitable for many applications.
Dimensional consistency - The compression molding process allows for close dimensional tolerances and uniform magnet shapes to be produced consistently.
Temperature stability - Strontium ferrite magnets have high Curie temperatures, typically around 450-470°C. They maintain good magnetic properties over a wide operating temperature range.
Resistance to corrosion - Being fully dense ceramic materials, they are not prone to corrosion like bonded magnets containing additives.
Mass production capability - The molding process is amenable to automated high-volume manufacturing of complex magnet geometries.
PHYSICAL PROPERTIES OF SINTERED FERRITE MAGNETS
| Units | Sintered Ferrite (Ceramic) | |
| Curie Temperature | ºC | 450 | 
| Maximum Operating Temperature | ºC | 350 | 
| Hardness | Hv | >530 | 
| Density | g/cm3 | 4.8 – 5.0 | 
| Relative recoil permeability | μrec | 1.05-1.1 | 
| Temperature Coefficient Br | %/ºC | -0.18 | 
| Temperature Coefficient iHc | %/ºC | 0.11-0.40 | 
| Anti-Bending Strength | N/m2 | (0.5-0.9)×108 | 
| Anti-Compressive Strength | N/m2 | ≥6.9×108 | 
| Anti-Tensile Strength | N/m2 | (0.2-0.5)×108 | 
| Specific Heat | J/kg·K | 600-900 | 
| Resistivity | Q.cm | >104 | 

What's the application of Xinheng's permanent ferrite magnets?
Xinheng mainly manufactures the following types of ceramic arc segment magnets:
How Xinheng fabricates its permanent strontium ferrite magnet?


FERRITE POWDER GRADE OF MOTORCYCLE MOTORS MAGNET
牌号 Grade  | Br(mT) | Hcb(KA/m) | Hcj(KA/m) | (BH)max(KJ/m3) | ||||
| mT | Gs | KA/m | Oe | KA/m | Oe | KJ/m3 | MGOe | |
| Y33 | 410-430 | 4100-4300 | 220-250 | 2760-3140 | 225-255 | 2830-3200 | 31.5-35.0 | 3.9-4.4 | 
| Y33H | 410-430 | 4100-4300 | 250-270 | 3140-3390 | 250-275 | 3140-3450 | 31.5-35.0 | 3.9-4.4 | 
| Y33H-2 | 410-430 | 4100-4300 | 285-315 | 3580-3960 | 305-335 | 3830-4200 | 31.8-35.0 | 4.0-4.4 | 
| Y34 | 420-440 | 4200-4400 | 200-230 | 2510-2890 | 205-235 | 2570-2950 | 32.5-36.0 | 4.1-4.4 | 
| Y35 | 430-450 | 4300-4500 | 215-239 | 2700-3000 | 217-241 | 2730-3030 | 33.1-38.2 | 4.1-4.8 | 
| Y36 | 430-450 | 4300-4500 | 247-271 | 3100-3400 | 250-274 | 3140-3440 | 35.1-38.3 | 4.1-4.8 | 
| Y38 | 440-460 | 4400-4600 | 285-305 | 3580-3830 | 294-310 | 3690-3890 | 36.6-40.6 | 4.6-4.8 | 
| Y40 | 440-460 | 4400-4600 | 330-354 | 4150-4450 | 340-360 | 4270-4520 | 37.6-41.8 | 4.7-5.2 | 
To know more about Xinheng Magnets

                                 
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