Crawler Muck Loader + One Set (Multiple Sets) of Mine Shuttle Car(s) + Mine Car + Locomotive

Description
1. This option is ideal for tunneling level lane in vertical shaft.
2. The main process:
(1) Use coal mucking loader and mine shuttle cars to clean the waste rock 4-5m near the working site. This can make space for the next process.
(2) Use mine shuttle cars to side dump waste rock to two mine cars each time.
(3) After all the waste rock in the mine shuttle cars are unloaded, continue the first step.
3. In this option, it needs no conveyor belt, but it requires much more time and labor.