CALCINATION, CRUSHING, GRINDING AND MIXING The incoming raw materials are subjected to quality checks and are calcined. The calcined materials are then crushed and ground to predetermined sizes, graded and stored in different hoppers. Superfine materials are then required to produce highly compacted refractories. To this end, we have recently installed a ball-mill. The calcined and graded materials are weighed on Rotary Scales to prepare mixtures according to different requirements of different refractories. The pulverized materials are thoroughly mixed for feeding them to the presses. SHAPING The mixtures are now ready to be shaped. They are now weighed to determine the quantity needed for each brick, and then poured into alloy-steel moulds which are fitted to heavy duty presses. We use presses of 400 ton capacity. DRYING & FIRING These green bricks are then passed through dryers and forklifts finally load them into tunnel kiln where the temperature is precisely controlled within a range of 1450 degree C-1550 degree C. THE PURSUIT OF EXCELLENCE All round excellence is the main goal to which every operation of “Valley” is oriented, it is pursued constantly, consciously, and with dedication. The fire bricks are sorted, marked and stamped and are ready for dispatch.