strontium ferrite powder
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Magnetic powder:
Flexible magnets:

magnetic ferrite powders Strontium Ferrite powder

Unimagnet provided UMWF series sintered ferrite magnetic powder which is used in manufacturing sintered strontium ferrite magnets , typical application includes medium and higher energy speaker rings, NMR devices, magnetic seperators and automotive motors.

As an essential raw material of ferrite magnetic powder, iron oxide red acts a key role in the manufacture process of ferrite powder. Unimagnet has established international co-operation with ISSI (US) and BaoSteel Group, and steady-going purchases of high quality iron oxide red guarantee stable purity , granularity, particle shape, bulk density and compactness of raw material. Simultaneously, Unimagnet adopts constant and stable techniques to ensure that the strontium ferrite powder has coherent magnetic performance, stable particle shape and narrow-dispersed size distribution.

Typical products of strontium ferrite powder for sintered ferrite magnet

Grade

Magnetic characteristics

Shrik Rate%

Pellet (mm)

Coarse Powder(μm)

Fine Powder(μm)

Moisture
≤%

Br(mT)

HCB(KA/m)

HCJ(KA/m)

(B·H)max (KJ/m3)

UMWF-1

350±5

263±4

298±8

23.1±0.8

12.0±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-1A

350±5

259±4

318±8

23.1±0.8

12.0±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-2

370±5

257±4

279±8

25.5±0.8

12.0±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-2A

370±5

279±4

342±8

26.7±0.8

12.5±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-2B

375±5

270±4

358±8

25.6±0.8

12.5±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-3

390±5

159±4

163±8

24.8±0.8

12.5±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-3A

390±5

199±4

270±8

27.2±0.8

12.5±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-3B

390±5

230±4

235±8

28.8±0.8

12.5±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-3C

390±5

283±4

302±8

30.4±0.8

13.5±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-4

395±5

282±4

314±8

30.6±0.8

12.5±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-4A

400±5

294±4

318±8

31.2±0.8

12.5±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-4B

405±5

227±4

230±8

32.0±0.8

12.5±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-5

410±5

191±4

199±8

31.8±0.8

12.5±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-5A

410±5

215±4

219±8

32.0±0.8

12.5±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-5B

410±5

235±4

243±8

32.3±0.8

12.5±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-6

410±5

271±4

279±8

32.8±0.8

12.5±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-6A

425±5

230±4

239±8

32.8±0.8

12.5±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

UMWF-7

430±5

191±4

199±8

35.0±0.8

12.5±1.0

6.0-12.0

3.0-6.0

0.75-0.85

≤0.5

Remark

1. Typical products of sintered ferrite powder for high energy ferrite magnet are strontium ferrite powder.

2. Custom-build specs is welcomed.