Ferrite Magnet

Ferrite magnets (ceramic magnets) are composed of iron oxide and barium/strontium carbonate. They are the most economical permanent magnets with excellent corrosion resistance and high operating temperatures. HJ Magnet produces isotropic and anisotropic ferrite magnets in disc, block, segment, and rotor shapes.

Ferrite Magnet-Disc/Ring
Product NameFerrite Magnet-Disc/Ring
Item NoFERRITE-001
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
Information:
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 - Mostly Used Standard
GradeBr (mT/KG)Hcb (KA/m/KOe)Hcj (KA/m/KOe)(BH)max (Kj/m³/MGOe)
Y10T(=C1)200/218125/145210/2506.5/8.0
Y25360/370135/150140/17022.5/25.3
Y30(=C5)380/385191/210199/22026.0/28
Y30BH380/390223/235231/24527.0/30.0
Y33410/420220/235225/24031.5/33.0
Y35400/410175/195180/20030.0/32.0
C8(=C8A)385/390235/255242/26527.8/30.0
C10400/410288/300280/28730.4/31.9

Specifications

  • Diameter: max 280mm
  • Height: max 40mm
  • Grade: Y10T, Y20, Y25, Y30, Y30BH, Y35
  • No coating required
  • Max temp: 250°C