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Home > products > Permanent Ferrite Magnet > By Fine Grinding Of Permanent Magnet Ferrite For Automobile Window Motors W108

By Fine Grinding Of Permanent Magnet Ferrite For Automobile Window Motors W108

Product Details

Place of Origin: Sichuan, China

Brand Name: XINHENG

Certification: IATF16949,ISO9001

Model Number: W108

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

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Product Name:
Ferrite Motor Magnets
Application:
Fan Motor
Shape:
Arc,Tile
Type:
Anisotropic Sintered Magnet
Composite:
Ferrite Strontium Powder
Size:
(R53.10mm-r47.75mm)×71.00mm
Processing:
Wet Pressed
Coating:
No Coating
Product Name:
Ferrite Motor Magnets
Application:
Fan Motor
Shape:
Arc,Tile
Type:
Anisotropic Sintered Magnet
Composite:
Ferrite Strontium Powder
Size:
(R53.10mm-r47.75mm)×71.00mm
Processing:
Wet Pressed
Coating:
No Coating
By Fine Grinding Of Permanent Magnet Ferrite For Automobile Window Motors W108

By Fine Grinding Of Permanent Magnet Ferrite For Automobile Window Motors W108​

 

What does Xinheng offer to customers?

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

 

By Fine Grinding Of Permanent Magnet Ferrite For Automobile Window Motors W108 0

What's the application of Xinheng's permanent ferrite magnets?

 

Xinheng mainly manufactures the following types of ceramic arc segment magnets:

  • Automotive motor magnet including automobile starter motor magnet, automobile wiper motor magnet, automobile rolling window motor magnet, automobile heating and cooling fan motor magnet, automobile seat motor magnet, automobile sunroof motor magnet, automobile powsteering motor magnet, automobile tailgate motor magnet, automobile oil pump motor magnet, automobile ABS anti-lock motor magnet, etc.
  • Inverter home appliance magnet including inverter washing machine motor magnet, inverter refrigerator motor magnet, inverter air-conditioner motor magnet,etc.
  • Fan motor magnet including ceiling fan motor magnet, floor fan magnet, etc.
  • Motorcycle motor magnet including motorcycle starter motor magnet, motorcycle flywheel magneto magnet, etc.
  • Electrical tool motor magnet including cutting machine motor magnet, electric sawing machine motor magnet, lawn mower motor magnet, gasoline generator magnet, etc.
  • Actuator motor magnet including medical bed actuator motor magnet, TV lifting bracket actuator motor magnet, desk lifting actuator motor magnet, smart home appliance actuator motor magnet, etc.

How Xinheng fabricates its permanent strontium ferrite magnet?

By Fine Grinding Of Permanent Magnet Ferrite For Automobile Window Motors W108 1

By Fine Grinding Of Permanent Magnet Ferrite For Automobile Window Motors W108 2

 

FERRITE POWDER GRADE OF AUTOMOBILE MOTORS MAGNET

 

 

Grade

       
mT Gs KA/m Oe KA/m Oe KJ/m3 MGOe
Y30H-1 380-400 3800-4000 230-275 2890-3460 235-290 2950-3640 27.0-32.5 3.4-4.1
Y30H-2 395-415 3950-4150 275-300 3450-3770 310-335 3890-4200 27.0-32.0 3.4-4.0
Y33H-2 410-430 4100-4300 285-315 3580-3960 305-335 3830-4200 31.8-35.0 4.0-4.4
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

 

AUTOMOBILE MOTORS MAGNET SPECIFICATION TABLE

 

 

No.

 

Item

 

R

 

r

 

W

 

L

 

h

 

Grade

 

Application

1 W020C 28 21.5 50.0 50 6.3 Y30H-2 Wiper motor
2 W024 17.5 12.15 30.7 32 5.4 Y33 Oil pump motor
3 W037 33 30.5 60.0 41.0 7.2 Y33H-2 Heater motor
4 W037A 35.5 33.2 64.0 38.0 7.3 Y33H-2 Heater motor
5 W049 48.5 41.5 53.5 30.0 7.0 Y30H-1 Electrical fan
6 W069 48 41.25 52.0 20.0 6.65 Y30H-1 Electrical fan
7 W092 19.2 12.9 26.4 53.0 5.6 Y30H-2 Window motor
8 W082 29 29 33 56 6 Y33H-2 Power steering motor
9 W107 29.2 27.8 34 76.5 5 Y33H-2 Power steering motor
10 W109 30.75 31.35 36.3 80 5.9 Y33H-2 Power steering motor
11 W4180 30 22.7 34.0 45.0 7.3 Y33H-2 Starter motor
12 W4186 36.3 33.9 64.5 36.0 8.2 Y33H-2 Heater motor

 

Introduction Of Oil Pump Motor:

Pump Motor Power A modified specific motor that drives an oil pump. The oil pump motor includes the motor body, the front end cover and the output drive shaft. A stepped hole is opened on the front end cover, and the output drive is retracted into the front end cover for a hollow shaft. The shaft hole aperture is matched with the outer diameter of the input drive shaft of the oil pump. The pump is divided into high pressure and low pressure: that is, the high pressure plunger pump relies on the camshaft in the pump to drive the plunger to move up and down in the plunger sleeve to produce high pressure oil supply to the injector.

 

 

To know more about Xinheng Magnets

By Fine Grinding Of Permanent Magnet Ferrite For Automobile Window Motors W108 3By Fine Grinding Of Permanent Magnet Ferrite For Automobile Window Motors W108 4