Anisotropic Ring Hard Ferrite Magnets

Anisotropic Ring Hard Ferrite Magnets, Anisotropic Strontium Sintered Ferrite Ring Permanent Magnets, Ring Speaker Ceramic Magnets, Standard Hard Ferrite Permanent Ring Magnets China Factory

Anisotropic Ring Hard Ferrite Magnets Features
Material   SrO or BaO and Fe2o3 Ferrite (Ceramic)
Shape: ring
Grade: Y30,Y25, Y35, Y33, Y40, C5, C8, C1, etc.
Dimensions Range: Outer Dia D8mm-D220mm; Inner Dia D4mm-D110mm; Thickness > 3mm
Tolerance: ±2%
Plating : None
Operating Temp(Max).: 80℃ （176℉）
Maximum Br: 3850Guass
Magnetized Direction: by Axial or by radial
Other size and grade are available on customers’ request
Application: widely used in audio, sensor, speakers, reed switches, motor, rotor, wind turbines/generators, AC/DC motors, drive motors, servo motors, toys, crafts etc.

Ferrite Ring magnets can be used in a wide range of applications due to their high coercivity and low cost.
Common applications include reed switches, loud speakers, security systems, audio and television and also holding devices such as pot magnets.
These popular magnets offer a medium level of magnetism and a good depth of field.
Ferrite has an excellent resistance to demagnetisation/corrosion, however care must be taken when handling the product due to its brittleness.

Ceramic or Ferrite magnets are made from Barium or Strontium Oxide, and Ferric Oxide. Strontium Ferrite’s are a powerful and cost effective option and are available in a wide range of shapes and sizes. Barium Ferrite is notably less powerful than Strontium Ferrite. Ceramic magnets will operate at up to 250˚C before losing their magnetism. sintered ferrite ring magnets

Ferrite divided barium ferrite (BaO · 6Fe2O3) and strontium ferrite (SrO · 6Fe2O3). High resistivity, is a semiconductor type, so a small eddy current losses, the coercive force, not the merits of demagnetization can be effectively applied in the air gap in the magnetic circuit, particularly suitable for small generators and permanent magnet motors.
The major products anisotropic ferrite permanent magnet series. They can be used to make the permanent ignition motors, permanent magnet motors, permanent magnet concentrator, magnetic lifting heads, magnetic thrust bearing, magnetic separator, speakers, microwave devices, magnetic sheet, and hearing aids.

National Standard Magnetic Properties of Sintered Ferrite Ring Magnets