The PLD2400 concrete batching machine is a sand and gravel batching device that uses a loader or belt conveyor for loading. It can batch more than three materials and can be used with various types of mixers and other metering devices to form fully or semi-automatic mixing plants. This machine effectively ensures the accuracy of the mix ratio of cement, sand, and gravel. Its electronic weighing system further enhances weighing accuracy. The PLD2400 concrete batching machine is a front-end automatic batching device used in conjunction with a mixer. This sand and gravel batching device, which uses a loader or belt conveyor for loading, can batch more than three materials and can be used with various types of mixers and other metering devices to form fully or semi-automatic mixing plants (in either one-way or two-way operation). It automatically completes the batching process of three to six materials (secondary concrete) such as sand, gravel, and cement according to the user's designed concrete mix ratio. This series of products utilizes electronic weighing, microcomputer control, digital display, and wired remote control, offering advantages such as accurate weighing, high batching precision, fast speed, powerful control features, and easy operation. This series of concrete batching machines can be combined with corresponding models to form modular small and medium-sized concrete mixing plants of various forms and specifications.