A loader is a type of tractor, usually wheeled, sometimes on tracks, that has a front-mounted square wide bucket
connected to the end of two booms (arms) to scoop up loose material
from the ground, such as dirt, sand or gravel, and move it from one
place to another without pushing the material across the ground. A
loader is commonly used to move a stockpiled material from ground level
and deposit it into an awaiting dump truck or into an open trench
excavation.
