With its strongly dynamic economy, Rumania remains an interesting market for producers and suppliers of technology alike. It’s here, especially in the city of Zalau – Rumania’s third largest city and the economic heart of the country’s north-west, that a significant order has been placed with Sacmi Heavy Clay. In last December, in fact, the new Cemacon plant, which will soon be producing a good 700 tons a day of variously sized hollow brick, was tested to the customer’s full satisfaction.
The key suppliers are Sacmi Heavy Clay and Bongioanni Macchine, the former providing the tunnel dryer, tunnel kiln, automatic dryer loading-unloading machines, kiln and packaging line, the latter the part concerning raw material preparation and extrusion. The key parts of the plant include the 127 x 22 m dryer, a 5-line fixed-cone model with external motor and internal air stirrers with inverter-controlled variable-speed fans. Then there is the kiln, a 52-car model – of which 4 in the pre-kiln – measuring 220.8 x 6.7 m, featuring all the relevant flame height adjustments and an ability to adapt the firing curve to the specific output.
Thanks to the new machines, Cemacon will be able to raise output while enhancing product quality even further: this is largely due to the new kiln, structurally designed to provide about 50% more output – and the possibility of employing the other machines, drier included, on a three-shift as opposed to a two-shift basis. In other words, Cemacon will soon be able to raise the output of the new plant from 700 to a potential 1,050 tons/day.
Finally, it’s worth pointing out the high degree of plant automation, made possible, among other things, by the stacker and de-stacker, another machine supplied by Sacmi Heavy Clay; these units employ robots fully integrated with the press hardware and pick-up devices, while the same on-pallet packaging line features fully automatic operation with cold-stretch packing and strap application. In short, the customer was impressed not only by the combination of outstanding line productivity and efficiency, but also the levels of energy consumption observed during the test phase, around 220 Kcal for every kg of finished product, drying and firing included: an exceptional result, partly due to the insertion of combustible substances in the clay body, but one that could not have been achieved without the use of optimised-consumption firing and drying systems.