PLD series concrete batching machine PLD series concrete batching machine is new type concrete batching machinery designed for building, road, bridge construction works. The batching machine can be applied to concrete mixers of 2000 liters or less in discharge capacity for direct receiving from the lifting hopper of mixer or from belt conveyor .Weight controller and sensors are incorporated in the weighing system for material weighing, batching and controlling, and can automatically modify falling head. The unit is reasonable in layout compact in size, easy and simple in operation, precise in batching and reliable in control.