Medium and large capacity mixers, equipped with interlocking mixing shafts, one or double gearbox (the latter for the IMP 1000-1300-2000-2500-5000), pneumatic driven bottom discharge gates. Available with 400, 500, 700, 1000, 1300, 2500 and 5000 kg mixing tank capacity, they can also be equipped with automatic control by means of a touch screen panel, variable speed, load cells, vacuum system and CO2 injection.