This is a round hole magnet with an outer diameter of 70mm, an inner diameter of 32mm, and a thickness of 15mm. The material is sintered ferrite, anisotropic, and the surface is uncoated. It is mainly used for speakers, speakers, and thickness magnetization.
At present, the magnets on the speakers mainly include sintered neodymium magnets and ceramic ferrite magnets. The magnetic properties of ferrites are relatively poor, and a certain volume is required to meet the driving force of the speakers, so they are generally used in larger audio speakers.
Rare earth magnetic materials (such as NdFeB), the magnetizing flux is much larger than that of ferrite, so using NdFeB magnets does not require a large diameter, so NdFeB is mostly used for small volume speakers, such as automobiles Audio.
For the same magnetic material, the larger the diameter, the saturation of magnetization, the greater the magnetic field strength, the greater the power of the speaker, the higher the sensitivity of the speaker, and the better the transient response.
Speaker magnets of other sizes;
Introduction of relevant horn magnets;
Is the magnet used in the speaker sintered NdFeB or bonded NdFeB?
How to select horn speaker magnet? It will help you after reading
Ferrite grade, sintered ferrite magnetic property parameter table
NdFeB magnet grade, Sintered neodymium magnet performance grade parameter table
Neodymium(Ndfeb) Magnet Material Safety Data Sheet
Sintered Ferrite Material Safety Data Sheet Pdf
Magnetic properties grade parameters of smco rare earth magnets
This is a high-performance ferrite rectangular magnet block, by the ferrite magnet manufacturer Caric Xiaofu original shooting, Y35 grade, using thickness magnetization, specific specifications are 35mm length, 25mm width, 15mm thickness, has a strong magnetic force, if you are interested in this size can contact the website customer service to provide you with samples, quotes...
You are now seeing this is a non-standard customized sintered ceramic ferrite magnets, thickness 9mm, 14 pieces of a group, made of high grade Y33 grade or more, with strong magnetic strength, widely used in a variety of micro-motors, power tool motors, sports equipment motors...
This sample is a door sensor magnet, the material is sintered ferrite, Y30 grade, the size is 25mm in length, 10mm in width and thickness, the two ends of the magnet are strong, and the direction of magnetization is 25mm, which is suitable for all kinds of proximity Switches, reed switches, anti-epidemic doors, door magnetic detectors, etc....
Introduction of 14mm diameter, 5mm thick circular isotropic ferrite magnet;Diameter: 14mm (0.55 inches) Thickness: 5mm (0.19"),Surface with pits for multi-pole magnetizationWeight: 3.77 grams,Grade: C1, Y10,Applications: Appliances, wood, plastics and other craft and educational projects....
To purchase buy large size ferrite ring magnets, please contact the courage magnet manufacturer in China. We can provide 150/180/190/200/210/220/240/260/300mm and other large size ferrite rings, which are widely used in industries, speakers and other fields. Welcome to inquire about the price....
This is a radial magnetized isotropic ferrite ring with grooves on one side of the magnet so that it can be used in a wider range of applications, the actual dimensions of the magnet are 17.2mm OD, 6mm hole, 7mm thickness, we have stock to supply, if you are interested in this product you can send an inquiry to us for price....
This product is a ferrite block magnet with a length of 40mm, a width of 25mm and a thickness of 10mm. It is magnetized in the default thickness direction, the surface is untreated, the vertical pulling force is about 1kg, and the certification is complete. It can be exported to various countries. Website customer service, thank you....
This product is round ferrite magnet with a diameter of 9mm and a thickness of 3mm, the performance class is Y30, magnetized in the thickness direction, without electroplating protective layer, the magnetic force is usually 700-1000gs, the working temperature is -40°C to +250°C, Suitable for sensors, suction parts, electrical appliances, Hall induction....