Heavy machinery typically refers to mobile units or vehicles, weighing 1.5 tons and upwards, used for tasks that require more power than manual labor. Starting from mini excavators and skid steer/compact track loaders, this category extends to enormous machines like large excavators, crawler cranes, and bulldozers, which can weigh up to 250 tons. In construction, common heavy equipment includes excavators, bulldozers, wheel loaders, cranes, trucks, graders, scrapers, rollers, pavers, millers, crushers, screeners, as well as concrete mixing and pumping trucks.