... JZC250,JZC300,these machines mix when the double-cone mixer drum rotates clockwise and discharges when it rotates reversally ... sits, road, bridge project, and small and medium concrete components factory.Main technical parameters:ModelJZC250JZC350Discharging Capacity250L300LCharging Capacity320L450LProduction Capacity6~ ... Weight1300kg1650kgAny question, contact me please. JZC300 mobile concrete mixer