| Packaging Details: | packing: packed in plastic bag then put in carton |
|---|---|
| Delivery Detail: | 30-40 days |
Hard ferrite magnet rotor for sale
1.Hard ferrite (ceramic) magnets were developed in the 1960's as a low cost alternative
to metallic magnets.
2.Even though they exhibit low energy (compared with other permanent magnet materials)
and are relatively brittle and hard, ferrite magnets have won wide acceptance due to their
good resistance to demagnetization, excellent corrosion resistance and low price per pound.
3.In fact, measured by weight, ferrite represents more than 75 percent of the world magnet consumption.
Magnetic properties of ferrite magnet
| Grade | Wb/ m2 | Br | KA/ m | BHc | KJ/ m2 | (BH) max |
| Gs | Oe | MGOe | ||||
| Y25 | 3500-3900 | 0.35-0.39 | 152-208 | 1900-2600 | 22.3-25.5 | 2.8-3.2 |
| Y30 | 3800-4200 | 0.38-0.42 | 160-216 | 2000-2700 | 26.3-29.5 | 3.3-3.7 |
| Y35 | 4000-4400 | 0.40-0.44 | 176-224 | 2200-2800 | 30.3-33.4 | 3.8-4.2 |
| Y15H | ≥3100 | ≥0.31 | 232-248 | 2900-3100 | ≥17.5 | ≥2.2 |
| Y20H | ≥3400 | ≥0.34 | 248-264 | 3100-3300 | ≥21.5 | ≥2.7 |
| Y25BH | 3600-3900 | 0.36-0.39 | 176-216 | 2200-2700 | 23.9-27.1 | 3.0-3.4 |
| Y30BH | 3800-4000 | 0.38-0.40 | 224-240 | 2800-3000 | 27.1-30.3 | 3.4-3.8 |
