While the surface miner moves forward, a special cutting drum rotates against the direction of travel, cuts material layer by layer from the rock formations, and crushes it in the process. The primary conveyor receives the rock from the drum housing and transports it to the end of the machine, where it is transferred to the height-adjustable discharge conveyor that features wide swing angles. From there, the material is loaded onto trucks or dumpers or sidecast. The discharge height can be adjusted to match the size of the available transport equipment. The surface miner is driven by four steerable and height-adjustable crawler units. An automatic leveling system ensures that the machine maintains the exact cutting depth. This allows even thin seams or layers to be selectively mined with maximum precision.