Rock Loader [1] is a mechanical device used for loading ore or rock in horizontal or gently inclined tunnels. It offers flexible and reliable performance, with high productivity in rock loading operations, suitable for geological exploration tunnels. According to the form of its working mechanism, there are raker bucket, shovel bucket, crab claw, vertical claw, and grab bucket types. Mainly used in coal mines, metallurgical mining areas, tunnel construction, etc., where it is paired with ore cars or buckets for loading tasks. It provides a detailed introduction to the structural composition, working principle, and applications of the raker bucket, shovel bucket, and crab claw types. Additionally, it covers maintenance and care for rock loaders, as well as operational procedures for the loader positions.

The rock loader is characterized by high rock-loading efficiency, simple structure, good reliability, easy operation, and wide application range. It can be used not only in horizontal tunnels but also in inclined tunnels with an inclination of less than 30°, making it a major equipment for increasing excavation speed and achieving tunneling mechanization.