Ferrite Cylinder Magnet D8x20mm

Ferrite Cylinder Magnet D8x20mm

Ferrite Cylinder Magnet D8×20mm is a cylindrical permanent magnet with an 8 mm diameter and 20 mm length, designed for use in sensing systems, motor assemblies, and small magnetic actuation components.
Manufactured from strontium ferrite (SrFe12O19) through powder pressing and high-temperature sintering, forming a rigid ceramic structure with stable magnetic properties and corrosion resistance.
The cylindrical geometry is typically magnetized along the axial direction, generating a north–south pole on the flat circular ends for linear magnetic field output.

Y10T, Y25, Y30, Y33, Y35 (Custom Available)
10℃ – 180℃ (Custom Available)
200℃ – 250℃
0.2 – 0.45 T
>= 150 kA/m
>= 240 kA/m
~4.8 – 5.0 g/cm³
±0.05 mm (Depending on size)

 

We provide custom diameter and length options for ferrite cylinder magnets to match different sensor housings, motor components, and industrial assembly requirements. Dimensions can be adjusted according to installation space and functional design.

Axial or customized magnetization directions are available to support different magnetic field requirements, including reed switch triggering, Hall sensor detection, and linear magnetic actuation systems.

Drawing-Based OEM Production

OEM production can be carried out based on customer drawings or technical specifications, ensuring accurate structural fit and stable magnetic performance in final applications.

Sample development and batch production support are available for prototype validation, magnetic performance testing, and long-term supply requirements in mass production projects.

 

What does D8×20mm mean?

D8×20mm indicates an 8 mm diameter and 20 mm length cylindrical shape, defining both the installation fit and the magnetic field distribution range in compact devices.

 

Axial magnetization is standard, with north and south poles on the flat circular ends, generating a linear magnetic field along the magnet's length.

 

Yes. The axial field structure is commonly used in reed switches, Hall effect sensors, and position detection systems where on/off magnetic triggering is required.

 

Yes. Diameter, length, and tolerances can be adjusted based on housing design, assembly requirements, or OEM drawings.

 

 

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