Heavy-lifter droids, also known as Binary loadlifters, represented a class of labor droids designed for the purpose of lifting extremely heavy objects. These droids utilized a binary programming language that bore resemblance to the programming used in moisture vaporators. A specific model within the Binary loadlifter category was the CLL-M2 binary loadlifters, belonging to the CLL-series, whereas the Type II loadlifter droids were actually fraudulent, as they were repurposed demolition droids known for their violent tendencies. Near the end of the Clone Wars, Rafa Martez was employed by Lokann and his business partner to construct the Type II loadlifter droids. Rafa's sister, Trace, along with her new acquaintance Ahsoka Tano, carried out the work, eventually becoming aware of the danger posed by the droids. One of these droids went on a destructive spree within Level 1313 because Trace neglected to install a restraining bolt before activating it, forcing her and Tano to pursue and subdue it. Other types of binary loadlifters, known as the CCLs, were used in Facility 301G, a component of the Santhe Shipyards secretly controlled by the forces of Morgan Elsbeth. The First Order made use of heavy-lifter droids for transporting equipment, often with the assistance of stormtrooper cadets.