Large-size ferrite ring magnet is a large-caliber annular permanent magnetic component developed based on high-grade ferrite magnetic materials, specially designed for large industrial equipment, mechanical supporting facilities and heavy electrical products. Breaking the size limitation of conventional small and medium-sized ferrite ring magnets, this product features large outer diameter, large inner aperture and thickened overall structure, with super strong magnetic coverage and stable integral magnetic field distribution. It retains all the advantages of traditional ferrite magnets such as low cost, anti-demagnetization and aging resistance, and makes up for the shortage of small-size magnets in large equipment magnetic field support and integral fixing, being a core magnetic accessory for large-scale industrial complete equipment.

In terms of material performance, large-size ferrite ring magnets adopt high-density modified ferrite formula, which improves the overall magnetism and structural compactness of the product. After high-temperature integral sintering and slow cooling tempering treatment, the internal crystal structure is uniform and stable, effectively avoiding cracking, deformation and uneven magnetism common in large-size magnet processing. The product has high remanence and uniform axial and radial magnetic field, with strong magnetic penetration and coverage. It can work stably in the temperature range of -30°C to 130°C for a long time, with extremely low natural demagnetization rate, and the magnetic performance can remain stable for more than 15 years in conventional industrial environments.

In terms of processing and structural advantages, large-size ferrite ring magnets adopt integral one-time sintering forming process, abandoning the splicing process of multiple small magnets. The integral annular structure ensures the continuity and uniformity of the magnetic field, eliminates magnetic field gaps and performance differences caused by splicing, and greatly improves the operating stability of large equipment. The product undergoes strict dynamic balance calibration and dimensional correction after forming, with flat and smooth end faces and regular circular radian, which can adapt to the high-load rotating operation of large mechanical equipment. According to customer requirements, it can be customized with large-size non-standard inner and outer diameter parameters, and supports fine processing such as surface grinding and hole expansion to meet the assembly needs of different large-scale equipment.

Large-size ferrite ring magnets are widely applied in large industrial motors, heavy mechanical equipment, industrial fan accessories, large audio equipment, mining magnetic separation equipment and power transmission equipment. In large permanent magnet motors and generator sets, they provide stable and uniform annular magnetic field support, ensuring the efficient operation of high-power motors; in industrial ventilation and heat dissipation equipment, they are used for magnetic fixing and positioning of large fan rotors, improving equipment operation stability; in large-scale sound equipment and industrial vibration equipment, they serve as core magnetic field components to guarantee stable equipment vibration and sound production effects. Compared with large-size rare earth magnets, large ferrite ring magnets have ultra-high cost performance, stable performance and no need for frequent replacement, which greatly reduces the production and maintenance costs of large industrial equipment, and is the preferred magnetic component for medium and low magnetic field demand large-scale industrial scenarios.