The Acadian Queen mining complex and other large installations that dominate the trans solar economy were only made possible by advances in basic materials and construction techniques. This was true not only of the orbital assembly complexes around mars, but also the asteroid shepherding operations further out. Emblematic of these new construction methods is a class of vehicle known as the 'Jack'. This name is a truncation of 'Jack of All Trades' and describes a vast and ubiquitous class of multiarm construction suits designed for general purpose microgravity work.
Here we see an early 22nd century example participating in the construction of Talos Station above Neptune. The type identification is difficult, as field modifications and extensive retrofitting of new equipment was the rule rather than the exception over their long service life. The basic body does seem to be a license-built Chinese copy of the Volund Z-X, but such a machine being in service on Talos would make it quite old, even by the standards of the type.