Hard Arc Ferrite Magnets For Motors
Ferrite magnets wholesale:
1) Cheapest magnet material
2) Good anti-corrosion performance, no need to surface treatment.
3) Best temperature stability
4) Best choice for industrial application
5) All shapes can be customized
6) provide isotropic and anisotropic
- Information
Factory Supply Arc Segment Ferrite Magnet Ceramic Magnets Use for Motor
Ferrite magnet or ceramic magnet is the cheapest magnetic material available with the lowest cost/energy ratio, they are mainly Strontium based (SrFe2O3), manufactured with Strontium Carbonate additive to increase performances from the obsolete Barium based (BaFe2O3). Their good coercive force results from high crystal anisotropy of Strontium iron oxide. However, isotropic parts can also be produced where a simple and easy multi-pole magnetization is required. The most common shapes are simple, such as blocks, cylinders, rings and arcs.
Features:
1. Ferrite magnets are suitable for different environmental temperature;
2, Main features are low current and stable current flow;
3, Main features are many kinds of specifications, large force, and low current, stable rotation speed;
4, Generally speaking, Arc Magnets are all made as Customer Design and as Special requirement.
Surface Treatments
The corrosion resistance of Ferrite is considered excellent , and no surface treatments are required.
However, Ferrite magnets may have a thin film of fine magnet powder on the surface and for clean, non-contaminated applications, some form of coating may be required.
Magnetizing and Handling
Ferrite magnets require magnetizing fields of about 10 kOe.
They can be magnetized with multiple poles on one or both pole surfaces.
No special handling precautions are required, except that large blocks of Ferrite magnets are powerful, and care should be taken to ensure that they do not snap towards each other.
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 |
Temperature Effects
Up to about 840F, changes in magnetization are largely reversible, while changes between 840F and 1800 F are re-magnetizable.
For all Ferrite magnets, the degradation of magnetic properties is essentially linear with temperature.
At 350 F, about 75% of room temperature magnetization is retained, and at 550 F, about 50% is retained.
Ferrite segment magnets for different motors:
Ferrire arc magnets can be used for motorcycle magneto, motorcycle starter, automobile starter, window-rolling motors, automobile fuel pump motor, automobile windshield wipe motors, automobile fan motors, automobile power seat motors, automobile air compressor motor, electric tools.
FAQ:
Q1. What are ferrite arc magnets?
A1. Ferrite arc magnets are a type of ceramic magnet that is made from strontium or barium ferrite.
Q2. What are the applications of ferrite arc magnets?
A2. Ferrite arc magnets are commonly used in motors, generators, magnetic couplings, magnetic separators, and speakers.
Q3. How are ferrite arc magnets made?
A3. Ferrite arc magnets are made by pressing ferrite powder into a mold and then firing it in a furnace at high temperatures. They can also be made by bonding ferrite powder with a polymer binder.
Q4. What are the properties of ferrite arc magnets?
A4. Ferrite arc magnets are highly resistant to demagnetization and have good temperature stability. They are also relatively low in cost compared to other types of magnets.
Q5. What are the advantages of ferrite arc magnets?
A5. Ferrite arc magnets are highly resistant to corrosion, have good magnetic properties, and are relatively low in cost.
