0769-23388351
Toggle Navigation
The vast majority of people's knowledge of magnets is the force between the magnetic poles and the magnetic field on ferromagnetic objects. In fact, in addition to the conventional surface magnetism, magnetic flux and magnetic moment, attraction can also be used as a relative measurement of magnetic properties in specific applications. The attraction of permanent magnets can be roughly calculated by certain formulas, and some foreign companies have also introduced formulas for calculating the attraction of magnets.
Factors affecting the suction force of permanent magnets ?
1. Type (shape) and grade of magnet;
2. The magnetic pole area of the magnet;
3. The working temperature range of the magnet;
4. The air gap between the magnet and the test steel plate. According to the finite element analysis results, the suction force of the permanent magnet decreases with the increase of the air gap, and even a small air gap will have a huge impact on the suction force.
The influence of air gap on magnet attraction;
5. Test the steel plate. The test steel plate should use low-carbon steel with high magnetic permeability and sufficient thickness to avoid magnetic saturation. In addition, the flatness and roughness of the tested steel plate are the source of the air gap and are easily overlooked.
As a magnet supplier in China, we can provide you with rare earth neodymium magnets, ceramic ferrite magnets and multi-pole magnetic rings at competitive prices.
More introduction of magnetic attraction;
Are there any ultra thin magnets with strong suction?
1mm thick round neodymium magnet magnetic field strength and suction force
This product is a polished ferrite magnet, round shape, It looks very beautiful, all magnet products of our company support customization, such as shape, material, size, magnetic properties, we will do our best to meet customer needs....
This is a ferrite magnetic rod specifically designed for antenna applications. It has a cylindrical shape and is also commonly referred to as an industrial inductance core. With a diameter of 2.9 mm and a height of 25.4 mm,...
This product is a gas pipe magnet, made of ferrite, radial four-pole magnetization, product specifications are d9.7*4.7*12.4mm, d19.4*12.5*12.4, matching, customers who need samples send us an inquiry ....
This is a high-strength racetrack magnet produced by Courage magnet manufacturer, belonging to the custom type of magnet, that is, it is processed by bar neodymium magnet, length size 45mm, width 5.9mm, thickness 5.9mm, surface magnetic strength more than 3500 Gauss....
15mm ferrite magnet is a conventional size, the market is relatively large, mainly for the thickness of magnetization, can do multi-pole magnetization, that is, a surface multiple magnetic poles, can be used in many industries, such as packaging, leather goods, handbags, refrigerator magnets, fire doors, smart home, medical equipment, sensors, surface magnetic field intensity in more than 1000 gauss,...
Note that this is a thin ring neodymium magnet with radial magnetization. Most of the other powerful ring magnets of similar specifications you have seen are axial, so this is a special one. The outer diameter of the magnetic ring is 27mm, the same as the size of the commemorative coin, the inner diameter is 17mm, and the thickness is 1mm. The following picture is taken by Xiao Fu, the courage magnet manufacturer....
This sintered neodymium magnet radial magnetic ring has an outer diameter of 48 mm and dimensions of 48 x 40 x 2.5 mm. It is made from high-performance rare earth materials and offers excellent magnetic performance and stability....
This 6x2x2.5mm ring-shaped neodymium magnet is designed using a diameter-direction magnetization (radial magnetization) process, featuring a unique magnetic field distribution, making it ideal for high-precision magnetic sensing and sensor applications....