This sample is a large rod ceramic magnet with a hole in the middle, Also known as hollow cylindrical magnets, the specific size of the outer diameter of 18.9mm, the inner diameter of 6mm, the thickness of 34mm, no coating on the surface, this magnet is generally radial multi-pole magnetization, such as 4 poles, 6 poles, 8 poles, the magnet can work below 250℃, with anti-oxidation, anti-corrosion, anti-demagnetization and other functions.
The application of strong cylinder magnet with hole:
Cylinder ferrite magnet with hole is gennerally a toroidal core for filter coils, and also can be widely used in power transformers, current sensors, instrument transformers, inductors, chokes, ballasts, voltage regulators, welding transformers, broadband transformers, filters and other fields.
The measurment of high temperature ferrite cylinder magnet with hole: