The Z7 series represented a group of construction droids. These droids, produced by Structgalactis, Inc., were engineered to accomplish demanding tasks including land clearing, trench excavation, terrain leveling, and building construction. Notably, it was among the initial models to incorporate frictionless omnidirectional treads for commercial use. With a cubic form factor measuring 3 meters on each side, a Z7 unit featured two identical arms capable of accepting diverse tools like shovels, power lifters, hooks, hoes, wrecking rams, and stack manipulators.
A specific droid, often referred to as Zeta due to the impracticality of pronouncing her complete identification, once served within the team responsible for constructing a settlement amidst the Cro-Akon tundra.