Sintered Ferrite Magnet Manufacturer

Sintered Ferrite Magnet Manufacturer in China

Dailymag provides custom sintered ferrite magnets suitable for various applications.

  • Endures up to 250°C temperature 
  • High resistance to corrosion
  • Budget-friendly solution

Dailymag Sintered Ferrite Magnet

The sintered ferrite magnets are a cost-effective substitute for metallic magnets. They manifest low energy with hard and proportionally brittle characteristics. These magnets have extreme resistance to corrosion, demagnetization, and economical price. Also, the sintered ferrite is the most preferred magnet for magnetic separators, DC motors, and auto sensors. Various hard ferrite magnet elements include strontium and barium.


Physical Properties

Configuration Unit Worth
Compression Strength N/mm2 680 to 720
Electrical Resistance mΩ·cm 1×1010
Flexural Capacity Pa 62×106
Curie Temperature 450
Density g/cm3 4.9 to 5.1
Thermal Expansion Coefficient 10-6/°C C⊥: 10, C∥15.
Thermal Conductivity W/(cm·℃) 0.029
Hardness D.P.N 400 to 700
Tensile Strength Pa 34 x 106
Elasticity Modulus Pa 1.8 x 1011
Sintered Ferrite Rotor Magnet
Sintered Ferrite Rotor Magnet

The sintered ferrite rotor ring magnets are processed by bending, cutting, molding, etc. They come with customized magnetism directions.

Sintered Ferrite Neodymium Magnet
Sintered Ferrite Neodymium Magnet

The sintered ferrite neodymium magnets come with various coatings, like epoxy, gold, passivated, etc., available in different magnetic grades.

Sintered Ferrite Anisotropic Magnet
Sintered Ferrite Anisotropic Magnet

Sintered ferrite anisotropic magnets have customizable sizes and grades. They are designed with block, rectangle, or square shapes.

Industrial Sintered Ferrite Magnet
Industrial Sintered Ferrite Magnet

Industrial sintered ferrite magnets are suitable for televisions, speakers, medical machines, ammeter, and audio. They are customizable.

Conductivity Sintered Ferrite Magnet
Conductivity Sintered Ferrite Magnet

Sintered ferrite magnets with high conductivity are available in different shapes, depending on customers’ demands. Y10-Y35 are grade options.

Sintered Permanent Ferrite Magnet
Sintered Permanent Ferrite Magnet

The sintered permanent ferrite magnets are produced using punching, molding, decoiling, etc. They have customizable specifications.

6 Products Found.

Sintered Ferrite Magnet By Shape

Features and Advantages

The sintered ferrite magnets come with a black surface and consistent magnetic features. That becomes the main advantage of a sintered ferrite magnet. Their series, including the injected molded ones, are formed by molding production. These magnets have two types, anisotropic and isotropic. The two have differences that need to consider.

The isotropic ones are weaker magnets but with larger molds that save cost. On the other hand, anisotropic magnet molds are more costly than isotropic. These sorts of sintered ferrite magnets have relatively powerful magnetic properties.

Sintered Ferrite Magnet
Sintered Ferrite Magnets

Sintered Ferrite Magnet Manufacturing Process

Dailymag professionally performs the following manufacturing procedures.

  1. Weighing & Mixing
  2. Palletizing
  3. Pre-sintering
  4. Coarse crushing
  5. Fine crushing
  6. Dry or wet process
  7. Dehydration or dispersion
  8. Molding
  9. Drying and sintering
  10. Machining and magnetization

Sintered Ferrite Magnet and Bonded Ferrite Magnet Differences

Even though these magnets are classified as ferrite types, the contrast between the two plays a major part. The differences include:

  • Bonded ferrite magnet is produced with ceramic technology, the most common type. And Sintered ferrite magnets are manufactured with molding and injection methods.
  • The utmost working temperature for both ferrite magnets works differently. Bonded ferrite magnets extend up to 180°C and Sintered ferrite magnets reach up to 250°C.
  • Sintered ferrite magnets have a hard texture but meet the product’s objectives of working in high-temperature environments. It has stable performance, unlike Bonded ferrite magnets. 
Sintered Ferrite Magnet

Magnetic Properties (Chinese Standard)

Material Grade Br Hcb Hcj (BH)max
Y10T 200 to 235mT; 2.0 to 2.35KGs 125 to 160 KA/m; 1.57 to 2.01KOe 210 to 280KA/m to 2.64 to 3.52KOe 6.5 to 9.5KJ/m3; 0.8 to 1.2 MGOe
Y20 320 to 380mT; 3.2 to 3.8KGs 135 to 190KA/m; 1.70 to 2.38KOe 140 to 195KA/m; 1.76 to 2.45KOe 18.0 to 22.0KJ/m3; 2.3 to 2.8MGOe
Y23 32o to 370mT; 3.2 to 3.7KGs 170 to 190KA/m; 2.14 to 2.38KOe 190 to 230KA/m; 2.39 to 2.89KOe 20.0 to 25.5KJ/m3; 2.5 to 3.2MGOe
Y30 370 to 400mT; 3.7 to 4.0KGs 175 to 210KA/m; 2.20 to 2.64KOe 180 to 220KA/m; 2.26 to 2.77KOe 26.0 to 30.0KJ/m3; 3.3 to 3.8MGOe
Y32 400 to 420mT; 4.0 to 4.2KGs 160 to 190KA/m; 2.01 to 2.38KOe 165 to 195KA/m; 2.07 to 2.45KOe 30.0 to 33.5KJ/m3; 3.8 to 4.2MGOe
Y33 410 to 430mT; 4.1 to 4.3 KGs 220 to 250KA/m; 2.77 to 3.14KOe 225 to 255KA/m; 2.83 to 3.21KOe 31.5 to 35.0KJ/m3; 4.0 to 4.4MGOe
Y35 400 to 410mT; 4 to 4.10KGs 175 to 195 KA/m; 2.20 to 2.45KOe 180 to 200KA/m; 2.26 to 2.51KOe 30.0 to 32.0KJ/m3; 3.8 to 4.0MGOe
Y22H 310 to 360mT; 3.1 to 3.6KGs 220 to 250KA/m; 2.77 to 3.14KOe 280 to 320KA/m; 3.52 to 4.02KOe 20.0 to 24.0KJ/m3; 2.5 to 3.0MGOe
Y26H 369 to 390mT; 3.6 to 3.9 KGs 220 to 250KA/m; 2.77 to 3.14KOe 140 to 200KA/m; 2.83 to 3.21KOe 23.0 to 28.0KJ/m3; 2.9 to 3.5MGOe
Y30BH 380 to 390mT; 3.8 to 3.9KGs  275 to 300KA/m; 2.80 to 2.95KOe 231 to 245KA/m; 3.90 to 4.21KOe 27.0 to 30.0KJ/m3; 3.4 to 3.7MGOe
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