Hard Ferrite Ring Magnets

Hard Ferrite Ring Magnets, Loundspeaker FERRITE MAGNETS RINGS ALL BIG SIZES 20 23 30 40 70 80 90 100 110 120 134 140mm, Ceramic Ring Magnets, Ring Hard Ferrite Anisotropic Permanent Magnets, Science/Physics/Magnetics/School Magnets, Audio Speaker Sintered Ceramic Magnets China Supplier

Hard Ferrite Ring Magnets Features:
Part No.: HS-FMR
Material: Ferrite/Ceramic magnet
Shape: ring
Grade:Y30,Y25, Y35, Y33, Y40, C5, C8, C1, etc.
Magnetic properties: Hcj,Hcb,BH,Br,BHmax,working temperature
Tolerance: ±2%
Plating : None
Operating Temp(Max).: 80℃ （176℉）
Maximum Br: 3850Guass
Magnetized Direction: Magnetized through thickness
Other size and grade are available on request
Application:widely used in sensor,speakers,reed switches,motor,rotor,wind turbines/generators,AC/DC motors,drive motors,servo motors etc
Magnetization directions:by Axial or by radial

Dimension range of Ring Magnet
Outer diameter: 5.0mm ~ 180mm
Inner diameter : 2.0mm ~ 150mm
Thickness: 1.0mm ~ 25mm

Tolerance of Ferrite Ceramic Ring Magnets
Standard tolerance : +/-2%
Also stricter tolerance are possible if specially requested.

Surface coating of Ferrite Magnet
Ferrite Magnet,also called Ceramic magnet, there is no surface coating. They do not
Require surface treatment.

Packaging and Delivery
Packaging: Neutral box packaging, inner box , foam inside and other protection, to ensure
safely of transportation.
Delivery time: 8 ~ 20days, depend on customer’s order quantity.

Ferrite Ceramic Ring Magnets are used in loundspeaker – Speakers are everywhere, and most of them use the same old principle of a permanent magnets coupled with an electromagnetic coil.
Sub-woofers, woofers, mid-range speakers, tweeters, coaxial drivers… all are including at least one permanent magnet.

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.

We at HSMAG have been designing permanent ring magnets for more that a century and took part in the design of the early speakers and drivers.
Though we generally supply ferrite ring magnets when it comes to speakers applications, we are always innovating in this field and trying new materials and design to supply our customers with the best speakers rings.

Please contact us and we will be happy to study your application with you.