III. PROCESS IN KILN (CINKERIZTION) It is combined process made of Pre-heating, Calcining, which hot air is taken from cooler at 300deg C. In this Burning and cooling operation. Rotary Kiln is the main equipment for clinkeriztion. The ACC Wadi Cement plant consisting of Kiln (Size 4.8 Mts. Dia x 74.0 Mts. Length) from ABL with 3000 TPD.