Product Details
Place of Origin: Sichuan, China
Brand Name: XINHENG
Certification: IATF16949,ISO9001
Model Number: W21H
Payment & Shipping Terms
Minimum Order Quantity: 1000pcs
Price: Negotiation
Packaging Details: Carton+pallet
Delivery Time: 10-15days
Payment Terms: T/T, L/C, D/P, T/T, Western Union, MoneyGram
Supply Ability: 10000 ton per year
Product Name: |
Fan Ferrite Motor Magnets |
Application: |
Fan Motor, Rotor Magnet |
Shape: |
Arc,Tile |
Type: |
Anisotropic Sintered Magnet |
Composite: |
Ferrite Strontium Powder |
Size: |
(R36mm-r23.25mm)×30.37mm |
Processing: |
Wet Pressed |
Coating: |
No Coating |
Package Size: |
340mm×255mm×75mm |
Product Name: |
Fan Ferrite Motor Magnets |
Application: |
Fan Motor, Rotor Magnet |
Shape: |
Arc,Tile |
Type: |
Anisotropic Sintered Magnet |
Composite: |
Ferrite Strontium Powder |
Size: |
(R36mm-r23.25mm)×30.37mm |
Processing: |
Wet Pressed |
Coating: |
No Coating |
Package Size: |
340mm×255mm×75mm |
Advanced Permanent Magnet Ferrite Used In Large Commercial Electric Fans
The role of Permanent Magnet Ferrite in the fan is mainly reflected in the following aspects:
Drive motor: A fan's motor usually requires a magnetic field to drive rotation, and permanent magnet ferrite can provide a stable magnetic field. Compared with electromagnets, permanent magnets do not require additional power supply during operation and are therefore more energy efficient.
Size and weight: Permanent magnet ferrites are relatively light and small, which can help design more compact and lightweight fans. This is especially important for portable fans or small appliances.
Cost effective: The production cost of ferrite-type permanent magnet materials is lower, so using them can reduce the manufacturing cost of fans. Although their magnetic properties are not as good as some rare earth permanent magnet materials, they are sufficient for many fan applications.
High temperature resistance: permanent magnet ferrite has good high temperature resistance, which can ensure stability and durability for such equipment as fans that need long-term operation.
Noise control: Fans using permanent magnet ferrite usually run smoothly and can effectively reduce noise. This is especially important for applications in environments where silence is required (e.g., offices, bedrooms).
Life: Permanent magnet ferrite materials have a long service life and are not easy to demagnetize, so the frequency of maintenance and replacement can be reduced.
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.
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 |
How Xinheng fabricates its permanent strontium ferrite magnet?
FERRITE POWDER GRADE OF FAN 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 |
FAN MOTORS MAGNET SPECIFICATION TABLE
No. |
Item |
R |
r |
W |
L |
h |
Grade |
Application |
1 | W118 | 68.1 | 60.7 | 25 | 25 | 7.50 | Y33H | 1KW inverter motor |
2 | W018F | 72.5 | 60.7 | 27.9 | 35 | 11.80 | Y40 | 2KW inverter motor |
3 | W005A | 72.5 | 60.5 | 29.5 | 42 | 11.80 | Y33H | 2.3KW inverter motor |
4 | W050E | 87.3 | 78.5 | 24 | 40 | 8.80 | Y33H | 2.6KW inverter motor |
5 | W159 | 74.1 | 65.5 | 28.86 | 47 | 8.60 | Y40 | 2.8KW inverter motor |
6 | W017F | 86.5 | 78.5 | 24.0 | 51 | 7.90 | Y33H-2 | 3KW inverter motor |
7 | W087 | 86.5 | 78.5 | 24.0 | 64 | 7.80 | Y33H-2 | 5KW inverter motor |
8 | W138C | 101 | 90.2 | 24.5 | 65 | 10.8 | Y40 | 7KW inverter motor |
9 | W019B | 112 | 100 | 28.5 | 60 | 11.90 | Y40 | 9KW inverter motor |
To know more about Xinheng Magnets