setup allowed both machines to operate simultaneously with the necessary clearance and coverage across the site.”
The Lawrenceville build was no small task. With concrete and steel on the lower levels and four stories of wood framing above, space constraints made traditional lifting equipment impractical. According to Rider, 84 Lumber’ s portion of the project involved the wood framing on the top four levels where the cranes were essential for handling preassembled wall panels, floor and roof trusses, loose lumber and sheeting.
Game Changer The cranes’ remotecontrolled operation proved to be a game-changer. Operating without cabs and guided via wireless controls, operators could position themselves wherever they had the best view of the rigging and lifting processes, enhancing both safety and efficiency.
“ Two-way radios were used to coordinate the precise placement of loads on the upper levels,” Rider said.“ This setup helped maintain smooth and efficient operations despite the site’ s extremely tight working conditions.”
The Potain Igo T 130 and Igo T 99 offered not only reach but also flexibility. The T 130— the largest crane in Potain’ s self-erecting range— was erected with two additional mast sections to achieve a hook height of 113 feet and a full 164-foot jib. Its 8.8-ton maximum capacity provided ample lifting strength for heavy prefabricated elements.
Meanwhile, the Igo T 99 was configured with three extra mast sections to reach a 126-foot hook height and a 157-foot jib, delivering a 6.6- ton lifting capacity. Together, the cranes could handle 200- pound components at heights ranging from 80 to 90 feet.
“ Between the two cranes, we were able to cover everything and erect the entire wing of the building without moving the T 130,” Rider said. Initially, the construction
8 December 26, 2025 www. contractorshotline. com