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The power supply mode of the micro DC motor is direct current, so it can be powered by a battery. The use of permanent magnets in the micro motor is to prolong the battery life, save the excitation coil, and reduce the volume. Today, we will introduce the type of permanent magnet used.
Now, most micro motor manufacturers use neodymium magnets, and a few motor manufacturers also use samarium cobalt magnets and ordinary ferrite magnets. The shapes are mainly ring-shaped and arc-shaped. The following is an introduction to the use of magnets for micro motors.
For permanent magnet ferrite, because of its good high temperature resistance (250 ° C) and low price, it is necessary to consider whether the magnetic field strength can meet the requirements.
The NdFeB strong magnet has a temperature resistance of about 200 °C, which fully meets the working temperature requirements of the micro motor. Its price is cheaper than samarium cobalt, and the price is in the middle.
The above is the introduction of magnets used in micro motors. Our company can provide various multi-pole neodymium magnets, neodymium arc magnets, and injection-molded ferrite magnets. You are welcome to provide drawings to inquire about prices and samples.
Related micro-motor magnet samples;
This is an ultra-small ferrite block magnet, small and thin, with a thickness of only 0.8mm, a length of 3.8mm, and a width of 2mm. It is mainly used for precision electronics, Hall sensors, and is magnetized in the direction of 2. The strong magnetic surface is the length If you are interested in this kind of small ferrite magnets, you can contact us to customize without pressure!...
This is the courage magnet manufacturer to provide you with a anisotropy multi-pole ferrite ring magnet, through the side (radial) 12 pole magnetization, the surface magnetic is about 1050 gauss, its size is 28.4mm outer diameter, 17.5mm inner hole, thickness of 4mm...
This product is a ring-shaped ferrite magnet with an outer diameter of 20mm, an inner diameter of 10mm, and a thickness of 3mm. There is no coating on the outside. The magnetizing method is axial/planar 4 poles and the surface magnetic field strength is about 980gs. If you are interested in this magnet, please contact We provide you with samples, and other specifications are needed. We can also provide you with more magnetic poles....
Sample shot is a small and thin radial neodymium magnet ring, belongs to rare earth magnets, zinc-plated surface, outer diameter 6.5mm, inner hole diameter 3.5mm, thickness 0.5mm, through the diameter of the direction of the magnetization...
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...
The magnet is a multipolar Ndfeb magnetic ring, the material is bonded neodymium magnets, there are 12 magnetic poles, using the radial inner diameter magnetization, the use of surface for the inner side, the outer diameter of the ring magnet is 28mm, the inner diameter of 24mm, the height of 10mm, the surface black electrophoresis, the measured surface magnetic field intensity of about 2680 Gauss...
This product is provided by China's neodymium magnet manufacturer, The shape is a circle disk, sintered neodymium material, the magnet diameter of 30mm, thickness of 10mm, axial (thickness) magnetization, nickel plated surface, weight of 8.96g, surface magnetic field strength is greater than 4500 Gaos, tension about 2.8kg,...
This is a medium-sized ring neodymium magnet. The specific material is bonded neodymium iron boron. It is a magnet that needs to be pressed by mold. The size of the magnetic ring is 45.9mm in outer diameter, 41.4mm in inner diameter, and 13mm in height. radial inner diameter magnetization 10 poles, The surface is black epoxy coating. It is mainly used for various permanent magnet DC motors. Brushless motors。...