Aditya Birla Insulators follows world-class manufacturing practices in the production of porcelain insulators. The important stages in the manufacture of porcelain insulators are:

• Wet grinding of raw materials to slurry form
• Filter pressing to de-water the slurry
• Vacuum extrusion to provide plastic clay
• Shaping by pressing or turning
• Drying to remove absorbed water
• Firing to convert the raw material mixture to strong and vitreous porcelain
• Assembly, which involves fitting terminations to the porcelain shapes, so that they become insulators
• Testing, which implies a series of mechanical and electrical tests to ensure the technical integrity of the products

Aditya Birla Insulators recognises that high-quality products are obtained if only production is supported by a comprehensive system of process and quality control. These systems, fully documented, are a vital part of everyday production at both the Rishra and Halol factories.

Production process diagram