A loader is a heavy equipment machine used in construction to move or load materials such as soil, rock, sand, demolition debris, etc. into or onto another type of machinery.
John Deere Front end loaders
Loader removing snow in Jyväskylä, Finland
A Cat 908M at a landscape supply store in San Marcos.
Traction chains on a wheel loader
Heavy equipment, heavy machinery, earthmovers, construction vehicles, or construction equipment, refers to heavy-duty vehicles specially designed to execute construction tasks, most frequently involving earthwork operations or other large construction tasks. Heavy equipment usually comprises five equipment systems: the implement, traction, structure, power train, and control/information.
Heavy equipment vehicles of various types parked near a highway construction site
Wheel Loaders and other industrial trucks parked
horse-drawn Fresno scraper digging water-supply ditch
A portable engine; a precursor to modern engineering vehicles