The single-column extraction tower evolved from close collaboration with our customers. Pre-treated cossettes were moved downwards inside the shaft and distributed across the cross section of the tower. Pfeifer & Langen used the first tower of this kind at their Elsdorf factory, for processing 1,200 tons of beet a day.
Two years later, pumps were successfully used to move the cossettes into the lower section of the tower and an internal feed screw was no longer needed – the final breakthrough for tower extraction. Once more, the Elsdorf factory was the first to use the new technology.
From that point onwards, demand increased significantly. Customers deployed large numbers of our towers in beet-growing areas around the globe – from France, Britain and Italy, to Yugoslavia, the USSR and Czechoslovakia, and to the United States and Japan. By 1960, BMA had delivered 150 continuous extraction towers.