中文版 English
Home About Us Products News Quality Control Contact Us
Product Category
Neodymium Magnet
Ferrite Magnet
Rubber Magnet
Alnico Magnet
SmCo Magnet
Magnet System
Starter Motor
Progressive Die
Cellphone Holder
Contact Us

TEL : 86 0592 5213 304
         86 188 5052 7438
FAX : 86 0592 5514 068
Mail: magnet@hj-magnet.com

Products
Product Name: Ferrite Magnet-Disc/Ring
Item No:
Product Detail:
Ferrite Magnet is made of SrO or BaO and Fe2O3 by ceramic processing technology. Now we have six grades of permanent magnet products, namely Y10T, Y20, Y25, Y30, Y30BH, and Y35. The products appear ring, disk, block, and segment types. It's mainly used in speakers, motors, etc.
 
  • Intro:
  • Ring Ferrite Magnet 
  • Infomation:
  • Size: Outer diameter: max. 280mm, height: max. 40mm
  • Properties: Y20,Y25,Y30,Y30BH,Y35 (China Standard)
             C5,C8,C11 (U.S.A.Standard)
  • Applications: various speakers 

  • Technical parameters
    Et us Mostly Used standard
    Grade
    Value(min/typical in our factory)
    Br
    Hcb(BHC)
    Hcj(IHC)
    (BH)max
    MT
    KG
    KA/m
    Koe
    KA/m
    KOe
    Kj/m3
    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
    Chinese standard
    Material
    Br
    HcB
    HcJ
    (BH)max
    mT
    KG
    KA/m
    KOe
    KA/m
    KOe
    Kj/m³
    MGOe
    Y10T
    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
    Y30
    370~400
    3.7~4.0
    175~210
    2.20~2.64
    180~220
    2.26~2.77
    26.0~30.0
    3.3~3.8
    Y30BH
    380~390
    3.8~3.90
    223~235
    2.80~2.95
    231~245
    2.90~3.08
    27.0~30.0
    3.4~3.7
    Y30-1
    380~400
    3.8~4.0
    230~275
    2.89~3.46
    235~290
    2.95~3.65
    27.0~32.0
    3.4~4.0
    Y30-2
    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
    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
     
     
     
     
     
    USA standard
    Material
    Br
    HcB
    HcJ
    (BH)max
    mT
    KG
    KA/m
    KOe
    KA/e
    KOe
    kj/m³
    MGOe
    C1
    230
    2.3
    148
    1.86
    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
    4.00
    21.9
    2.75
    C8(=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
    4.0
    288
    3.617
    280
    3.51
    30.4
    3.82
    C11
    430
    4.3
    200
    2.512
    204
    2.56
    34.4
    4.32
    Europe standard
    OX100=Y10T=C1       OX300=Y30=C5     OX330=Y30BH
    The standard from International Electronics Committee(IEC404-8-1)
    Grade
    Allowed Value (min/typical)
    Br
    Hcb(BHC)
    Hcj(IHC)
    (BH)max
    MT
    KG
    KA/m
    KOe
    KA/m
    KOe
    Kj/m³
    MGOe
    HF8/22
    200/220
    2.00/2.20
    125/140
    1.57/1.76
    220/230
    2.76/2.89
    6.5/6.8
    0.8/1.1
    HF20/19
    320/333
    3.20/3.33
    170/190
    2.14/2.39
    190/200
    2.39/2.51
    20.0/21.0
    2.5/2.7
    HF20/28
    310/325
    3.10/3.25
    220/230
    2.76/2.89
    280/290
    3.52/3.64
    20.0/21.0
    2.5/2.7
    HF22/30
    350/365
    3.50/3.65
    255/265
    3.20/3.33
    290/300
    3.64/3.77
    22.0/23.5
    2.8/3.0
    HF24/16
    350/365
    3.50/3.65
    155/175
    1.95/2.20
    160/180
    2.01/2.26
    24.0/25.5
    3.0/3.2
    HF24/23
    350/365
    3.50/3.65
    220/230
    2.76/2.89
    230/240
    2.89/3.01
    24.0/25.5
    3.0/3.2
    HF24/35
    360/370
    3.60/3.70
    260/270
    3.27/3.39
    350/360
    4.40/4.52
    24.0/25.5
    3.0/3.2
    HF26/16
    370/380
    3.70/3.80
    155/175
    1.95/2.20
    160/180
    2.01/2.26
    26.0/27.0
    3.2/3.4
    HF26/18
    370/380
    3.70/3.80
    175/190
    2.20/2.39
    180/190
    2.26/2.39
    26.0/27.0
    3.3/3.4
    HF26/24
    370/380
    3.70/3.80
    230/240
    2.89/3.01
    240/250
    3.01/3.14
    26.0/27.0
    3.3/3.4
    HF26/26
    370/380
    3.70/3.80
    230/240
    2.89/3.01
    260/270
    3.27/3.39
    26.0/27.0
    3.3/3.4
    HF26/30
    385/395
    3.85/3.95
    260/270
    3.27/3.39
    300/310
    3.77/3.89
    26.0/27.0
    3.3/3.4
    HF28/26
    385/395
    3.85/3.95
    250/265
    3.14/3.33
    260/275
    3.27/3.45
    28.0/30.0
    3.5/3.8
    HF28/28
    385/395
    3.85/3.95
    260/270
    3.27/3.39
    280/290
    3.50/3.60
    28.0/30.0
    3.5/3.8
    HF30/26
    395/405
    3.95/4.05
    250/260
    3.14/3.33
    260/270
    3.27/3.39
    30.0/31.5
    3.8/3.9
    HF32/17
    410/420
    4.10/4.20
    160/180
    2.01/2.26
    165/175
    2.07/2.20
    32.0/33.0
    4.0/4.1
    HF32/22
    410/420
    4.10/4.20
    215/225
    2.70/2.83
    220/230
    2.76/2.89
    32.0/33.0
    4.0/4.1
    HF32/25
    410/420
    4.10/4.20
    240/250
    3.01/3.14
    250/260
    3.14/3.27
    32.0/33.0
    4.0/4.1
     
    Copyright@2012 HJ MAGNET MANUFACTURING,CO