Micro small round piece strong magnets are miniature disc-shaped permanent magnets with ultra-small diameter and ultra-thin volume, which belong to precision micro magnetic components. This kind of magnet has a regular circular structure, small overall size, precise size and stable magnetic performance. The conventional diameter range is 1mm-10mm, and the thickness is 0.3mm-3mm. It is mainly made of high-precision high-performance neodymium iron boron magnetic materials, with the characteristics of small volume, strong magnetic force, high precision and stable performance. It is specially developed for miniaturized, precise and hidden magnetic assembly scenarios, and is widely used in high-end electronic products, precision instruments and micro intelligent equipment.

The production and processing of micro small round piece strong magnets belong to high-precision micro processing technology, with extremely strict process standards and dimensional tolerance requirements. The production process includes high-precision raw material slicing, micro laser cutting, ultra-fine surface grinding, micro edge chamfering, ultra-thin anti-corrosion coating and precise directional magnetization. Different from conventional magnets, micro round piece magnets have extremely high requirements on dimensional accuracy, surface flatness and roundness. The whole production process is completed in a dust-free precision workshop to avoid surface impurity pollution and dimensional deviation caused by external factors. The dimensional tolerance of finished products is controlled within ±0.01mm, the surface is smooth and burr-free, the roundness is uniform, and no micro deformation occurs. The ultra-thin electroplating process ensures that the surface anti-corrosion layer is uniform and thin, which does not affect the assembly gap while ensuring anti-corrosion performance.

Micro small round piece strong magnets have unique advantages of miniaturization, high precision, strong magnetic force and hidden installation. Firstly, the ultra-small volume can meet the assembly requirements of micro equipment and ultra-thin electronic products, realize hidden magnetic installation, and will not occupy excessive product space, which is in line with the miniaturization and refined development trend of modern electronic products; secondly, although the volume is tiny, the product adopts high-grade neodymium iron boron raw materials, with high magnetic energy product and strong unit magnetic force, which can realize stable magnetic adsorption and induction in micro space, and complete the functional requirements that ordinary small magnets cannot meet; in addition, the product has stable magnetic performance, low magnetic attenuation rate, good consistency of batch products, and no obvious magnetic difference between individual products, which ensures the stable and consistent operation of precision equipment.

The application scenarios of micro small round piece strong magnets are concentrated in high-end consumer electronics, smart micro devices, precision medical instruments, optical equipment, and miniature sensor equipment. In the consumer electronics industry, they are widely used in mobile phone camera lifting magnetic parts, mobile phone wireless charging magnetic components, Bluetooth speaker magnetic cores, and micro magnetic accessories of smart remote controls, providing precise magnetic induction and adsorption functions for mini electronic products; in smart wearable devices, they serve as core magnetic parts of ultra-thin smart watches, miniature fitness sensors, and intelligent hearing aids; in the medical field, they are applied to micro magnetic components of miniature medical detectors, rehabilitation treatment instruments and implantable medical auxiliary equipment; in optical precision instruments, they are used for magnetic positioning of optical lenses, micro adjustment of instrument parts and magnetic limit components.

Micro small round piece strong magnets support personalized customization of ultra-small specifications, special magnetic strength and special surface treatment. For special micro assembly scenarios, ultra-thin and ultra-small size customization can be carried out, and different magnetization directions can be matched according to equipment functional requirements. The product has the characteristics of small size, high precision, strong magnetic force, stable performance and long service life, and is the core basic accessory of modern micro-precision manufacturing industry. With the continuous upgrading of electronic product miniaturization and equipment precision, the market demand for micro small round piece strong magnets is growing rapidly, and it has become an indispensable key component in high-end precision manufacturing fields.