JSW Steel Ball Manufacturing Facility – 30 Years of Precision Production
Steel Ball Manufacturing Facility: An Overview of Our Wuxi Plant
Our steel ball manufacturing facility is a specialized production hub dedicated to crafting high‑precision steel balls, cylindrical rollers, needle rollers, and ball transfer units. Since 1992, we have refined our production processes, earning the trust of hundreds of customers in Germany, Italy, the United States, Brazil, Mexico and other countries. As an ISO 9001:2015 certified steel ball manufacturing facility (ISO 9001:2015 standard), we follow rigorous quality control protocols at every stage. For more about our company, please visit our About Us page.
Steel Ball Production Process – From Raw Material to Finished Balls
Cold Heading – Forming the Ball Blank
The process begins in a dedicated cold‑heading workshop. High‑grade wire rod is fed into automated cold headers, which shear and form the material into near‑spherical ball blanks at room temperature. This efficient process produces blanks with excellent material density and creates the foundation for all subsequent operations.
Heat Treatment – Optimizing Hardness and Structure
Our steel ball manufacturing facility uses continuous heat‑treatment furnaces with precise atmosphere control. The blanks undergo carburizing, quenching, and tempering processes to achieve the target core hardness (typically 58‑65 HRC) and case depth. A regulated cooling sequence ensures consistent microstructure and dimensional stability.
Grinding & Lapping – Achieving High Precision
Rough‑ground balls pass through multiple stages of fine grinding and lapping on high‑precision production lines. These machines remove microscopic peaks, progressively improving roundness and surface finish. Final lapping uses specialized plates and abrasive compounds to reach the required tolerance grade (G10‑G100) and mirror‑like finish.
