Description of OPC Clinker: Cement clinker is a solid material produced in the manufacture of Portland cement as an intermediary product. Portland cement clinker is made by heating a homogeneous mixture of raw materials in a rotary kiln at high temperatures. The products of the chemical reaction aggregate together at their sintering temperature, about 1,450 °C (2,640 °F)

Application of OPC Clinker: Portland cement clinker is ground to a fine powder and used as the binder in many cement products. A little gypsum is sometimes added. It may also be combined with other active ingredients or chemical admixtures to produce other types of cement.