Axial Four-pole Magnetic Ring with Concave Points Features:
Specification size: D21.2*7.5*3
Magnetizing mode: axial 4 pole
Magnetic field strength: 1050gs
Type: Permanent
Composition: Ferrite Magnet
This product is axial 4 pole magnetized ferrite, magnet specification: outer diameter of 21.2mm, inner diameter of 7.5mm, thickness of 3mm, magnetic force of 1050gs, interested in this product welcome to consult! 4-pole Magnetized Ferrite Ring Water Meter Magnet
Product description:
1. Materials:
Ferrite magnet is made from molding powder mixture of about Fe2O3 (80%) and either BaCO3 or SrO3 (20%) Some additives such as Cobalt and Lanthanum are mixed together to improve the magnetic performance coefficient
2. Temperature:
Operation temperature is between -40 and +250 degrees Centigrade
3. Grades:
Y20, Y22H, Y25, Y30, Y30BH, Y33, Y35, C1, C5, C8 (C8A)
4. Shapes:
Arc, tile, block, disc, cylinder or others are available
5. Sizes:
According to client’s needs
6. Features:
1) Magnet material
2) Good anti-corrosion performance, no surface treatment needed
3) Excellent temperature stability
4) Best choice for industrial application
5) All shapes can be customized
6) Provides isotropic and anisotropic
7. Applications:
Widely used in motor and in various fields
Customized shapes and sizes are accepted
Magnetic Characteristics and Physical Properties of Ferrite Magnet
| Items | Ferrite Magnet | ||||||
| Material | Ferrite magnet is made of Fe2O3 (80%) and Either BaCO3 or SrO3(20%) by Ceramic processing technology. Some additives such as Cobalt and Lanthanum are mixed together to improve the magnetic performance coefficient. | ||||||
| Shape available | Disc, block, cylinder, rectangle, square, ring, etc. | ||||||
| Specification | Grade | Br | Hcb | (BH)max | |||
| T | Gs | KA/m | Oe | Kj/m3 | MGOe | ||
| Y25 | 0.35-0.39 | 3500-3900 | 128-192 | 1600-2400 | 22.3-25.5 | 2.8-3.2 | |
| Y30 | 0.38-0.42 | 3800-4200 | 160-216 | 2000-2700 | 26.3-29.5 | 3.3-3.7 | |
| Y35 | 0.4-0.44 | 4000-4400 | 176-224 | 2200-2800 | 30.3-33.4 | 3.8-4.2 | |
| Y25BH | 0.36-0.39 | 3600-3900 | 176-216 | 2200-2700 | 23.9-27.1 | 3.0-3.4 | |
| Y30BH | 0.38-0.4 | 3800-4000 | 224-240 | 2800-3000 | 27.1-30.3 | 3.4-3.8 | |
| Characteristics | Lower cost, higher coercive force; no need to be coated because it is difficult to be eroded and oxidized | ||||||
| Application | Motors, sensor, speakers, toys, electronics device, crafts, wind turbines, wind generators, filters automobiles etc. | ||||||
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