A ceramic grinding disc with 99.7% alumina content is a high-performance precision grinding tool. Its main component is high-purity α-alumina, with a density typically ≥3.89 g/cm³ and a Rockwell hardness of HRA85 or above. This material exhibits an extremely low wear rate, uniform structure, and high chemical stability, showing almost no reaction with common acids, alkalis, and solvents, thereby preventing contamination during the grinding process.

This ceramic grinding disc is widely used in precision grinding and polishing processes for materials such as semiconductors, optical glass, advanced ceramics, and hard alloys. Its high hardness and uniform abrasive distribution ensure consistent surface processing results, with surface roughness Ra controllable below 0.01μm. It maintains dimensional stability and thermal stability even under continuous high-speed grinding conditions, with a maximum service temperature of up to 1600°C.

Compared with ordinary alumina or silicon carbide grinding discs, the 99.7% high-purity alumina ceramic disc offers a longer service life and higher machining accuracy. Its wear rate is below 0.02mm/100h, ensuring efficient material removal while effectively reducing the depth of damage to the workpiece. This product is suitable for various precision equipment such as surface grinders and double-side grinding machines, and can be customized in size and bore diameter according to requirements.

To ensure consistent performance, each batch of products undergoes rigorous testing, including purity analysis, density measurement, hardness testing, and parallelism inspection. It is recommended to use the disc in a dry, oil-free environment with appropriate grinding pressure and coolant to achieve optimal processing results and tool life.