Permanent Magnets Round Shape Sintered Ferrite Magnet Ring

Permanent Magnets Round Shape Sintered Ferrite Magnet Ring Specification

Material
Sintered Hard Ferrite (Ceramic)

Application
Motors, Loudspeakers, Sensors, Magnetic Assemblies, Educational Kits

Composite
Ferrite

Magnet Grade
Y30, Y35 or as specified

Surface Finish
Natural, Smooth

Product Type
Magnet Ring

Magnet Category
Sintered Ferrite

Magnet Type
Permanent Magnet

Shape
Round Ring

Size Range
Outer Diameter: 10mm - 100mm, Inner Diameter: 4mm - 60mm, Thickness: 3mm - 20mm

Weight
Varies by size; typically light-weight

Color
Dark Grey / Black

Usage & Applications
Motors, Speakers, Sensors, Magnetic Separators

Capacity
Customizable as per requirement

Density
4.84.9 g/cm

Operating Temperature
Up to 250C

Production Process
Dry or Wet Pressing, Sintering

Brittleness
Highhandle with care

MOQ
As per requirement

Magnetic Orientation
Axially or radially magnetized

Br (Residual Induction)
200440 mT (20004400 Gauss)

Corrosion Resistance
Excellent without coating

Hc (Coercive Force)
179233 kA/m

Coating
No coating required

Permanent Magnets Round Shape Sintered Ferrite Magnet Ring Trade Information

Minimum Order Quantity
10000 Pieces

FOB Port
Shenzhen/Shanghai/Ningbo/Qingdao

Payment Terms
Letter of Credit at Sight (Sight L/C), Paypal, Cash in Advance (CID), Telegraphic Transfer (T/T), Western Union

Supply Ability
500000 Pieces Per Month

Delivery Time
5 Days

Sample Available
Yes

Sample Policy
Free samples available with shipping and taxes paid by the buyer

Packaging Details
Box/Wooden Box

Main Export Market(s)
Asia

Main Domestic Market
All India

Certifications
ISO9001, IATF 16949:2016

About Permanent Magnets Round Shape Sintered Ferrite Magnet Ring

Sintered Ferrite Magnets

Sintered ferrite magnets, otherwise referred as ceramic because of their production process, are the least expensive class of permanent magnet materials.

The raw materials of ferrite magnets are mixed in the correct proportions, granulated, and calcined (pre-sintered). After going through several intermediate phases, a hexaferrite phase (BaFe12O19 or SrFe12O19) is achieved. The presintered granulate is ground to a powder. It can then be pressed wet or dry in a magnetic field (anisotropic) or in the absence of a magnetic field (isotropic) and sintered. The nature of the manufacturing process results in ferrite magnets that frequently contains imperfections such as cracks, porosity, chips, etc. Fortunately, these imperfections rarely interfere with a magnetas performance. Maximum operating temperature of sintered ferrite magnets can arrive 250 a.

Exceptional Thermal and Corrosion Performance

These round ferrite magnet rings withstand operating temperatures up to 250C and exhibit excellent corrosion resistance without any coating. This makes them a reliable choice for environments where durability and longevity are essential.

Versatile Magnetic Orientation and Applications

Magnetic orientation can be configured as axially or radially magnetized, suiting a wide array of applications from motors and sensors to educational kits. The flexibility in customization supports a broad range of technical requirements.

High Magnetic Strength and Customizable Dimensions

With residual induction values between 200-440 mT (2000-4400 Gauss) and coercive force of 179-233 kA/m, these sintered ferrite rings deliver strong, stable magnetism. Outer diameters range from 10mm to 100mm, inner diameters from 4mm to 60mm, and thickness from 3mm to 20mm, allowing tailored solutions for diverse projects.

FAQ's of Permanent Magnets Round Shape Sintered Ferrite Magnet Ring:

Q: How are Permanent Magnets Round Sintered Ferrite Rings manufactured?

A: The ferrite magnet rings are produced using either dry or wet pressing followed by sintering. This process yields a dense and robust ceramic magnet with a natural, smooth finish.

Q: What is the benefit of having no coating on these magnet rings?

A: Thanks to their excellent corrosion resistance, these magnets do not require any coating, even in demanding environments, simplifying the manufacturing process and reducing maintenance concerns.

Q: Where can these sintered ferrite magnet rings be used?

A: They are widely utilized in motors, loudspeakers, sensors, magnetic assemblies, separators, and educational kits, owing to their customizable strength and size.

Q: What precautions should be taken when handling these magnets?

A: Due to their high brittleness, the magnets should be handled with care to prevent chipping or breakage, especially during installation or assembly.

Q: What levels of magnetic strength do these ferrite magnet rings provide?

A: They offer residual induction ranging from 200-440 mT (2000-4400 Gauss) and coercive force values between 179-233 kA/m, ensuring reliable magnetic performance in various applications.

Q: Can I request custom sizes or grades for my specific needs?

A: Yes, the dimensions, capacity, and magnet grade (such as Y30 or Y35) are customizable according to your requirements, accommodating a variety of application scenarios.

Q: When is this type of magnet preferred over other materials?

A: Sintered ferrite rings are ideal for situations requiring high corrosion resistance, cost-efficiency, stable magnetism, and high operating temperature tolerance, particularly in demanding industrial and educational environments.