China Neodymium And Ferrite Magnets Manufacturer & Supplier 
When it comes to 1mm hole magnets, do you think that magnets with such small holes cannot be processed? In fact, it is possible. Today's article will introduce the main material types, processing methods, and applications of magnets with holes of only 1mm.
1mm hole magnet, as the name suggests, is a permanent magnet with an inner hole structure with a diameter of about 1mm. It usually belongs to micro precision magnets. Due to its small size, it has high requirements for material properties and dimensional accuracy. The hole is used to ｉｎｓｅｒｔ 1mm steel shafts or wires, and the shape is mainly circular.
As for the material, magnets with 1mm holes are mainly made of sintered neodymium iron boron and injection molded magnets (injection ferrite/injection neodymium iron boron), as these two materials are relatively easy to process. Among them, sintered neodymium iron boron has the characteristic of strong magnetic force, and different grades such as N35, N42, N52, and high temperature resistant H, SH can be selected according to needs. Injection molded magnets have the characteristics of easy processing of complex shapes, easy multipole magnetization, non fragility, and can be injection molded as a whole shaft.
Micro-perforated magnetic rings
Due to the small aperture of 1mm, high processing technology and dimensional tolerances are required. Precision machining equipment is usually used to complete drilling or mold forming, and axial magnetization, radial magnetization, or multipole magnetization is carried out according to product requirements.
Typical applications of 1mm hole magnets;
Micro motor: used for brushless motor rotors and micro drive motors to provide rotational power for equipment
Sensors and encoders: used in conjunction with Hall elements to detect position, velocity, and angle, such as magnetic encoders and rotary encoders
Smart wearable devices: used for positioning and adsorption structures in watches, headphones, and smart accessories
Electronic product components: such as small switches, magnetic connectors, precision fixed structures
As a professional magnet manufacturer, NST supports customized 1mm hole magnets based on drawings and samples. We can provide product solutions in different sizes, materials, magnetic properties, and magnetization methods according to customer needs, meeting the application requirements of high-precision magnetic components in industries such as motors, sensors, consumer electronics, and automation equipment.
Sample display;
Injection molded magnetic ring with small hole 9.5mm x 1mm x 2mm