Pozzolona cement is blended cement made by blending a small proportion of a particular grade of fly ash to portland cement. The process demand fly ash to be blended in a definite ratio by weight in a continuous manner to the cement mill. Macawber engineering system india, a joint venture company with collaboration from macawber engineering inc, usa, has perfected an efficient system consisting of dense phase pneumatic conveying system of fly ash and loss in weight continuous dozing system into cement mill within the acceptable accuracy levels. The systems is cost effective compared to conventional equipment being installed. Already a few of these succesful installations have proved the efficiency of the system and the customers are highly satisfied.