|
Product Name
|
Ferrite Magnets
|
|
Material Type
|
Ceramic Magnet
|
|
Material Composition
|
Iron oxide (Fe₂O₃) + Barium Carbonate (BaCO₃) / Strontium Carbonate (SrCO₃)
|
|
Manufacturing Process
|
Sintering at high temperature
|
|
Sintering Temperature
|
Up to 1,300℃
|
|
Appearance
|
Dark Gray / Black
|
|
Shapes
|
Block, Disc, Ring, Arc, Cylinder, Custom Shape
|
|
Residual Induction (Br)
|
370-400 mT (Example: Y30 Grade)
|
|
Coercive Force (Hc)
|
175-220 kA/m
|
|
Maximum Energy Product (BH)max
|
26-30 kJ/m³ (3.3-3.8 MGOe)
|
|
Operating Temperature Range
|
-40℃ to +250℃
|
|
Maximum Temperature (Special Grade)
|
Up to +300℃
|
|
Density
|
Approximately 4.8 g/cm³
|
|
Corrosion Resistance
|
Excellent, no additional coating normally required
|
|
Customization
|
Available
|
|
Grade Category
|
Grade
|
Magnetic Performance Level
|
Typical Applications
|
|
General-Purpose Grades
|
Y20
|
Standard
|
Motors, speakers
|
|
|
Y25
|
Medium
|
Motors, speakers
|
|
|
Y30
|
High
|
Motors, speakers
|
|
|
Y35
|
Higher
|
Motors, speakers
|
|
High-Coercivity Grades
|
Y30BH
|
High + Higher coercivity
|
Demanding applications
|
|
|
Y33BH
|
Higher + Higher coercivity
|
Demanding applications
|
|
Industrial Standard Grade
|
C5 (Y30)
|
Standard
|
Industrial separators
|
|
Premium Grade
|
C8 (Y30H-1)
|
Strongest among ceramic ferrites
|
Loudspeakers, high-performance motors
|
Ferrite Magnets are widely used in:
Electronics: Speakers, sensors, microwave oven coils.
Industrial: Magnetic separators, DC motors, lifting systems.
Automotive: Fan motors, wiper motors, starter motors.
Consumer Goods: Refrigerator magnets, toys, educational tools.
Marine/Aerospace: Corrosion-resistant components.
Cost-Effective for High-Volume Applications
Ferrite Magnets offer a competitive alternative to rare-earth magnets, with a stable supply chain and economical solution for large-scale production. Hard Ferrite Magnets provide an energy product of 26–30 kJ/m³ (3.3–3.8 MGOe) — sufficient for applications where moderate magnetic strength is adequate and cost optimization is a priority.
Excellent Corrosion Resistance — No Coating Needed
Ferrite Magnets naturally resist corrosion as they contain no easily oxidized metallic iron. Unlike NdFeB magnets that often require protective coatings, Ferrite Magnets can be used without additional surface treatment — reducing manufacturing processes and maintenance requirements.
Stable at High Temperatures
Ferrite Magnets maintain stable performance from -40°C to +250°C, with special grades up to +300°C. This makes them suitable for industrial equipment, automotive motors, and electrical components exposed to heat during operation.
OEM/ODM services include:
Shape Customization: Ferrite Magnets can be customized into blocks, discs, rings, arcs, cylinders, and special structures according to assembly requirements.
Grade Selection: Different magnetic grades can be selected according to required magnetic strength, temperature resistance, and application environment.
Dimension Customization: Size, thickness, and tolerance can be adjusted based on customer drawings and product specifications.
Application Optimization: Magnetic performance can be optimized for different products, including motors, speakers, sensors, and industrial equipment.
Packaging Customization: Packaging solutions can be provided according to transportation method, quantity, and customer requirements.
Packaging
Proper packaging helps prevent Ferrite Magnets from damage during transportation and storage.
For standard packaging, Ferrite Magnets are commonly packed in cartons, pallets, or fiber drums for bulk orders. Large-volume shipments can use industrial packaging solutions according to customer requirements.
For bulk materials, packaging options include:
25 kg pails,1-ton super sacks,custom industrial containers.
For special handling requirements, Ferrite Magnets can be vacuum-sealed or argon-packed when necessary.
Shipping options include air transportation, sea transportation, and international courier services such as UPS and FedEx.
Reducing Material Cost for Large-Scale Production
Many manufacturers need magnetic components with stable performance while controlling production costs. Ferrite Magnets provide an economical alternative when extremely high magnetic strength is not required.
Improving Product Durability in Harsh Environments
Some magnetic components are exposed to moisture, humidity, or outdoor conditions. Ferrite Magnets provide natural corrosion resistance, reducing the need for additional protective coatings.
Meeting High-Temperature Application Requirements
For products operating under heat conditions, standard rare-earth magnets may require additional protection. Ferrite Magnets can maintain performance at temperatures up to 250℃, with special grades available for higher temperatures.
1. What are Ferrite Magnets?
Ferrite Magnets are permanent ceramic magnets made mainly from iron oxide combined with barium or strontium compounds. They are widely used for cost-effective magnetic applications.
2. Are Ferrite Magnets strong compared with NdFeB magnets?
Ferrite Magnets have lower magnetic strength than NdFeB magnets. Their pull force is approximately lower, but they provide advantages in cost, corrosion resistance, and temperature stability.
3. Can Ferrite Magnets be customized?
Yes. Ferrite Magnets can be customized in different shapes, sizes, grades, and specifications according to customer requirements.
4. What information should buyers provide for quotation?
B2B buyers should provide magnet dimensions, required grade, application environment, quantity, tolerance requirements, and packaging requirements.
5. Do Ferrite Magnets rust?
No. Their ceramic composition provides excellent corrosion resistance, so additional coating is normally unnecessary.
6. What is the typical production lead time?
Typical production lead time is 7-15 days, while stock products may be shipped immediately depending on availability.
7. Can Ferrite Magnets work at high temperatures?
Yes. Standard Ferrite Magnets can operate up to 250℃, and special grades can reach higher temperatures.
8. Are Ferrite Magnets suitable for mass production?
Yes. Ferrite Magnets are widely used in high-volume manufacturing because of their stable production process and cost advantages.
9. What industries commonly purchase Ferrite Magnets?
Common industries include electronics, automotive, industrial equipment, consumer products, marine, and aerospace.
10. Can complex Ferrite Magnet designs be manufactured?
Yes. Customized shapes are available, although extremely complex designs may require additional grinding processes due to the brittle nature of ceramic materials.