Manufacturing Process

Kamdhenu cement is manufactured, through state-of-the-art technology. The raw material required for manufacturing Ordinary Portland Cement clinker are usually Limestone, Clay, Pet coke or Coke breeze and Iron ore. The exact proportion of this material depends upon their purity/quality.

70-80% of Limestone, 10-15% Clay, 2-4% Iron ore and 8-10% Pet coke are mixed and ground into fine powder in a ball mill. The powder known as raw mix is shifted to blending silos where it is blended to get a uniform quality mix. The raw mix is tested and is shifted to a storage silo, from where it is charged to a previously lighted kiln through a rotary feeder. The charge is burnt at a temperature from 1300°C-1500°C. The clinker thus formed is discharged and stored at least for seven days. Every lot of clinker is tested before cement grinding. The clinker is ground alongwith Gypsum in suitable proportion. The fine product thus obtained is Ordinary Portland Cement (OPC). Depending upon the additives i.e Fly ash or Granulated slag in suitable proportion, the fine products thus obtained are Portland Pozzolana Cement (PPC) or Pozzolana Slag Cement (PSC).

All physical and chemical parameters of the product are tested daily as per BIS norms.