In the large open-air coal mining operations, it has a decisive role of lowering consumption that the advanced production craft and equipment are used. Nowadays the main stream exploiting craft is the model of single bucket excavator, mobile crusher plant and belt conveyor, which is not continuous. Compared with the craft model of single excavator before the truck transporting, which is interrupted, the mobile crusher plant and the belt conveyor system take the place of mining truck, which has the advantages of low cost, pollution and consumption.

In the large open-air coal mining operations, it has a decisive role of lowering consumption that the advanced production craft and equipment are used. Nowadays the main stream exploiting craft is the model of single bucket excavator, mobile crusher plant and belt conveyor, which is not continuous. Compared with the craft model of single excavator before the truck transporting, which is interrupted, the mobile crusher plant and the belt conveyor system take the place of mining truck, which has the advantages of low cost, pollution and consumption.