Excavating Machines | Article about Excavating Machines by The Free ...
excavation-transport machines, including bulldozers, trailer scrapers, semitrailer scrapers, self-propelled scrapers, graders, and autograders, have working members that cut up the ground in layers and can transport the soil for distances ranging from several meters to 5 km. grader-elevators, which dump the soil into a dumping ground or transport .