... Adopt twin shaft mixer 4.Cement scale and water scale... This series concrete mixing plant is the ideal equipment ... conveyor, silo, screw conveyor, twin shaft mixer, measuring system, water supply system, air supply system, control system, main frame, ... metering accuracy±2%Water metering accuracy±1%Cement metering accuracy±1%Cycle period75sDischarging height3800mm HZS90 Series Concrete Mixing Plant