Ferrite Permanent Magnets
Cost-Effective Magnetic Solution
Ferrite Magnets: Affordable and Versatile Magnetic Solutions
Ferrite magnets, also known as ceramic magnets, are a cost-effective solution for a wide range of applications. Made from a blend of iron oxide and barium or strontium, Ferrite magnets offer moderate magnetic strength and excellent corrosion resistance, making them ideal for use in consumer electronics, motors, and industrial applications.
Why Choose Ferrite Magnets?
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Cost-Effective: Ferrite magnets are more affordable than rare-earth magnets, making them perfect for high-volume, budget-friendly applications in industries like home appliances and automotive.
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Good Magnetic Strength: While not as strong as NdFeB magnets, Ferrite magnets still provide adequate magnetic force for many applications, such as electric motors and magnetic separators.
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Corrosion Resistance: Known for their durability in harsh environments, Ferrite magnets are resistant to corrosion, making them ideal for outdoor and industrial applications.
Applications of Ferrite Magnets
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Electronics: Used in speakers, headphones, and microphones, providing a reliable and cost-effective magnetic solution.
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Motors: Common in DC motors for toys, appliances, and automotive components, where they deliver efficient performance at a lower cost.
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Magnetic Separation: Ferrite magnets are widely used in magnetic separators for food processing, mining, and recycling, where corrosion resistance is crucial.
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Household Appliances: Ferrite magnets are found in devices like refrigerators and microwaves, where they enable motor operation and switching.
Advantages of Ferrite Magnets
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Low Cost: Ferrite magnets are inexpensive to produce, making them ideal for mass-market products.
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Durability: They are environmentally stable, offering resistance to moisture and high temperatures.
Manufacturing Process Flow
Raw Material Preparation
Pre-sintered Material Receiving
Incoming Inspection (ISO 9001)
Milling Process
Coarse Crushing ≤500μm
Secondary Fine Milling ≤1.2μm
Forming & Sintering
Dry Pressing (100-150MPa)
High-Temp Sintering (1150-1250℃)
Precision Finishing
Grinding (±0.05mm Tolerance)
Ultrasonic Cleaning
Quality Assurance
100% Magnetic Testing
Final Audit & Shipping
Ferrite Magnet Technical Specifications
| Grade | Br | Hcb | Hcj | BHmax | Density | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| (mT) | (kGs) | (kA/m) | (Oe) | (kA/m) | (Oe) | (kJ/m³) | (MGOe) | (g/cm³) | (lb/in³) | |
| Y20 | 350-390 | 3.5-3.9 | 136-176 | 1.7-2.2k | 140-180 | 1.75-2.25k | 19.9-23.1 | 2.5-2.9 | 4.8-5.0 | 0.173-0.181 |
| Y25 | 360-400 | 3.6-4.0 | 159-199 | 2.0-2.5k | 163-203 | 2.05-2.55k | 22.3-25.5 | 2.8-3.2 | 4.9-5.1 | 0.177-0.184 |
| Y30 | 380-420 | 3.8-4.2 | 167-207 | 2.1-2.6k | 171-211 | 2.15-2.65k | 26.3-29.5 | 3.3-3.7 | 5.0-5.2 | 0.181-0.188 |
| Y30BH | 360-400 | 3.6-4.0 | 207-247 | 2.6-3.1k | 211-251 | 2.65-3.15k | 27.9-31.1 | 3.5-3.9 | 5.1-5.3 | 0.184-0.192 |
| Y33 | 390-420 | 3.9-4.2 | 183-223 | 2.3-2.8k | 187-227 | 2.35-2.85k | 27.0-30.3 | 3.4-3.8 | 5.2-5.4 | 0.188-0.195 |
| Y35 | 395-425 | 3.95-4.25 | 183-223 | 2.3-2.8k | 187-227 | 2.35-2.85k | 30.3-33.4 | 3.8-4.2 | 5.3-5.5 | 0.191-0.199 |
| Y35H-1 | 395-425 | 3.95-4.25 | 219-259 | 2.75-3.25k | 223-263 | 2.8-3.3k | 30.3-33.4 | 3.8-4.2 | 5.4-5.6 | 0.195-0.202 |
* Br: Remanence | Hcb: Coercivity | Hcj: Intrinsic Coercivity | BHmax: Energy Product
* 1 MGOe = 7.958 kJ/m³ | 1 kA/m = 12.57 Oe | 1 g/cm³ = 0.0361 lb/in³
Ferrite Magnet Demagnetization Curves
Y20, Y25 Demagnetization Curve
Y30, Y30BH Demagnetization Curve
Y33 Demagnetization Curve
Y35, Y35H-1 Demagnetization Curve
