China Neodymium And Ferrite Magnets Manufacturer & Supplier 
After introducing the gauss and pull strength of 3mm diameter neodymium round magnets, today we are going to introduce the gauss and tensile data of 4mm small diameter round neodymium magnets, and we will renewal the other sizes later on, welcome to stay tuned.
4mm diameter neodymium magnets are popular size as 3mm diameter neodymium magnets, widely used in speakers, headphones, micro motors, sensors, toys, with small size and strong magnetism. When choosing 4mm diameter neodymium magnets, it is recommended to consider the magnetic grade, coating type, and tolerance.
The following picture shows the adsorption capacity of a small neodymium round magnet of 4mmx1.5mm.
Below is a reference of gauss and tensile strength data for common specifications of N35 4mm diameter rare earth neodymium magnets;
4x1mm neodymium flat round magnet surface center point gauss about 2190 gauss, tensile force about 0.15kg.
4mm x 1.5mm round neodymium magnet with surface gauss of about 2800 gauss, tensile force of about 0.17kg.
4x2mm neodymium disk strong magnet, surface gauss is 3310, pull force is about 0.38kg.
4x3mm round strong magnet, center point gauss is about 3860 gauss, pull force is about 0.5kg.
4x4mm round powerful magnet, the surface center point gauss value is about 4100 gauss, the pull force is about 0.52kg.
4mm diameter, 5mm height neodymium cylindrical magnet, surface magnetic field strength of about 4300 gauss, tensile force of about 0.6kg.
We can also see from the data above that for the same diameter, the greater the height (thickness), the greater the Gauss and tensile force data, so to increase the magnetic strength, either increase the thickness or increase the neodymium magnet performance grade.
4mm diameter neodymium magnet product line;