Rectangular Block Sintered Ferrite Magnet Speciation:
1, Material: Ferrite magnet is made of Sro or Bao and Fe2o3 by Ceramic processing technology
2, Shape: Block, Rectangular, Rectangle, Square, Cube
3, Grades: Y10T,Y20,Y25,Y30,Y30BH,Y35 (China standard); C1,C5,C8,C11 (U.S.A. Standard)
4, Dimension: Customized
5, Tolerances: ‘+/-0.1mm
6, Coating: No need Coating.
7, Application: Widely used in ammeter, speaker, audio, phone, TV, dynamo, DC permanent magnet motors (used in cars), etc.
HARD FERRITE MAGNETS
Hard ferrite (ceramic) magnets were developed in the 1960’s as a low cost alternative to metallic magnets. 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. In fact, measured by weight, ferrite represents more than 75 percent of the world magnet consumption. It is the first choice for most types of DC motors, magnetic separators, magnetic resonance imaging and automotive sensors. buy square ferrite magnets
Chinese SJ/T0410-2000 Permanent Ferrite Manget Standard of Rectangular Block Sintered Ferrite Magnet
Grade BR HcB HcJ (BH)max
mT KG KA/m Koe KA/m Koe Kj/m MGOe
Y8T 200~235 2.0~2.35 125~160 1.57~2.01 210~280 2.64~3.52 6.5~9.5 0.8~1.2
Y20 320~380 3.2~3.8 135~190 1.70~2.38 140~195 1.76~2.45 18.0~22.0 2.3~2.8
Y22H 310~360 3.1~3.6 220~250 2.77~3.14 280~320 3.52~4.02 20.0~24.0 2.5~3.0
Y23 320~370 3.2~3.7 170~190 2.14~2.38 190~230 2.39~2.89 20.0~25.5 2.5~3.2
Y25 360~400 3.6~4.0 135~170 1.70~2.14 140~200 1.76~2.51 22.5~28.0 2.8~3.5
Y26H 360~390 3.6~3.9 220~250 2.77~3.14 225~255 2.83~3.21 23.0~28.0 2.9~3.5
Y27H 370~400 3.7~4.0 205~250 2.58~3.14 210~255 2.64~3.21 25.0~29.0 3.1~3.7
Y28 370~400 3.7~4.0 175~2102 2.20~2.64 180~220 2.26~2.77 26.0~30.0 3.3~3.8
Y30H-1 380~400 3.8~4.0 230~275 2.89~3.46 235~290 2.95~3.65 27.0~32.0 3.4~4.1
Y30H-2 395~415 3.95~4.15 275~300 3.46~3.77 310~335 3.90~4.21 28.5~32.5 3.5~4.0
Y32 400~420 4.0~4.2 160~190 2.01~2.38 165~195 2.07~2.45 30.0~33.5 3.8~4.2
Y33 410~430 4.1~4.3 220~250 2.77~3.14 225~255 2.83~3.21 31.5~35.0 4.0~4.4
Y35 430~450 4.3~4.5 215~239 2.70~3.00 217~241 2.73~3.03 33.1~33.2 4.16~4.17
In USA standard of Rectangular Block Sintered Ferrite Magnet
Grade BR HcB HcJ (BH)max
mT KG KA/m Koe KA/m Koe Kj/m MGOe
C1 230 2.3 148 1.84 258 3.5 8.36 1.05
C5 380 3.8 191 2.4 199 2.5 27 3.4
C7 340 3.4 258 3.23 318 4 21.9 2.75
C8A 385 3.85 235 2.95 242 3.05 27.8 3.5
C8B 420 4.2 232 2.913 236 2.96 32.8 4.12
C9 380 3.8 280 3.516 320 4.01 26.4 3.32
C10 400 4 288 3.617 280 3.51 30.4 3.82
C11 430 4.3 200 2.512 204 2.56 34.4 4.32
Rectangular Block Sintered Ferrite Magnet MPCO Stock Size:
| Model No. | Dimensions (mm)L*W*T | Model No. | Dimensions (mm)L*W*T |
| MFRB-001 | L10 × W10 × (2~5) | MFRB-002 | L12.5 × W8 × (2~7) |
| MFRB-003 | L12 × W7 × (3~7) | MFRB-004 | L12 × W12 × (2~7) |
| MFRB-005 | L12.8 × W9.8 × (2~7) | MFRB-006 | L13.3 × W7.8 × (2~6) |
| MFRB-007 | L14.8 × W9.5 × (2~6) | MFRB-008 | L15 × W15 × (3~7) |
| MFRB-009 | L15 × W13 × (2~6) | MFRB-010 | L16 × W10 × (2~7) |
| MFRB-011 | L16 × W15 × ø4.5×4.7 | MFRB-012 | L16.9 × W9.6 × (2~6) |
| MFRB-013 | L18 × W13 ×(2~7) | MFRB-014 | L18 × W15 × ø4.75×(2~7) |
| MFRB-015 | L19 × W13 × (2~8) | MFRB-016 | L19 × W17.5 × (2~7) |
| MFRB-017 | L19.7 × W10 × (2~7) | MFRB-018 | L20 × W20 × (3~10) |
| MFRB-019 | L20 × W10 × (3~6) | MFRB-020 | L20 × W12 × (3~7) |
| MFRB-021 | L20 × W13.5 × (3~10) | MFRB-022 | L20 × W15 × (3~6) |
| MFRB-023 | L21 × W15 × (4~6) | MFRB-024 | L21 × W19 × (2~7) |
| MFRB-025 | L23.5 × W13.5 × ø5×(2~8) | MFRB-026 | L24 × W13.4 × ø4.5×(2~6) |
| MFRB-027 | L24 × W24 × ø5.5×(2~18) | MFRB-028 | L24 × W24 × ø8×(2~8) |
| MFRB-029 | L25 × W8 × (2~6) | MFRB-030 | L25 × W10 × (2~6) |
| MFRB-031 | L25 × W14 × (3~6) | MFRB-032 | L25 × W10 × ø3.2×(2~6) |
| MFRB-033 | L25 × W20 × (2~10) | MFRB-034 | L25 × W19 × (2~7) |
| MFRB-035 | L27 × W20 × (4~6) | MFRB-036 | L27 × W22 × (3~7) |
| MFRB-037 | L30 × W10 × (3~7) | MFRB-038 | L30 × W20 × (3~24) |
| MFRB-039 | L30 × W30 × (3~24) | MFRB-040 | L35 × W15 × (3~6) |
| MFRB-041 | L40 × W12 × (2~7) | MFRB-042 | L40 × W20 × (3~20) |
| MFRB-043 | L40 × W25 × (3~24) | MFRB-044 | L40 × W40 × (3~17) |
| MFRB-045 | L42 × W25 × (3~15) | MFRB-046 | L44 × W22 × (3~10) |
| MFRB-047 | L45 × W25 × (3~20) | MFRB-048 | L47.6 × W9.5 × (3~15) |
| MFRB-049 | L47.6 × W22.2 × (3~7) | MFRB-050 | L49 × W19 × (3~20) |
| MFRB-051 | L50 × W19 × (3~20) | MFRB-052 | L50 × W25 × (3~20) |
| MFRB-053 | L50 × W50 × (3~24) | MFRB-054 | L50.8 × W25.4 × (3~26) |
| MFRB-055 | L57.5 × W32.5 × (3~18) | MFRB-056 | L59 × W24 × (3~20) |
| MFRB-057 | L59.3 × W29.5 × (3~25) | MFRB-058 | L60 × W20 × (3~24) |
| MFRB-059 | L60 × W25 × (3~20) | MFRB-060 | L60 × W30 × (3~25) |
| MFRB-061 | L75 × W50 × (3~23) | MFRB-062 | L76 × W41 × (3~26) |
| MFRB-063 | L82 × W30.6 × ø6.3×(3~20) | MFRB-064 | L85 × W65 × (3~28) |
| MFRB-065 | L87 × W66 × (3~22) | MFRB-066 | L90 × W34 × (3~24) |
| MFRB-067 | L100 × W100 × (3~27) | MFRB-068 | L105 × W105 × (5~25) |
| MFRB-069 | L127 × W50 × (3~26) | MFRB-070 | L131 × W51 × (3~24) |
| MFRB-071 | L150 × W100 × (3~30) | MFRB-072 | L160 × W80 × (3~30) |
| MFRB-073 | L152.4 × W101.6 × (3~29) | MFRB-074 | L101.6 × W76.2 × (3~30) |
| MFRB-075 | L152.4 × W50.8 × (3~30) | MFRB-076 | L270 × W90 × (5~32) |
The above size is suitable for customer’s Magnetic Grade,Dimension tolerance: Length ± 2%, Width ± 2%, Thickness ±0.1mm
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