AGITATORS ACM e-mail print Quality of the paper also depends on a good stock mixing. The design of our chests, with highly inclined bottom and our agitators allow to achieve a perfectly dispersed and homogeneous stock with the lowest energy consumption. The robustness of construction was carefully evaluated. The agitators have adjustable pitch propellers in order to optimise the mixing according to the process operating characteristics, stock consistencies, capacities and energy consumption. Ali working parts such as bearings, shafts, propellers were designed for a long trouble-free service.