construction machinery; construction equipment
General term for heavy equipment used in construction, such as excavators, bulldozers, and cranes.
A lot of construction machinery is lined up at the construction site.
This company rents out construction equipment.
重機 is a more casual, abbreviated term for heavy machinery, often used on construction sites, while 建設機械 is the formal, full term.
Compound of 建設 (construction) and 機械 (machine).