Dozers are used heavily in large and small scale construction, road building, minings and quarrying, and in heavy industry factories.
Backhoe loaders can be used for a wide variety of tasks: construction, small demolitions, digging holes/excavation, landscaping, breaking asphalt, and paving roads
Modern Wheel Loaders are used mainly for loading materials into trucks, laying pipe, clearing rubble, and digging.
The farm tractor is used for pulling or pushing agricultural machinery or trailers, for plowing, tilling, disking, harrowing, planting, and similar tasks.
Forklift trucks are available in many variations and load capacities. In a typical warehouse setting, most forklifts have load capacities between one and five tons.
Backhoe Loaders Wiki