Hydralift 500 Ton Top Drive Main Shaft

Hydralift 500 Ton Top Drive Main Shaft The Hydralift 500-ton top drive, developed in the early 1990s, was designed to enhance drilling operations by integrating a power swivel capable of handling substantial loads. Specific details about the main shaft's dimensions and features are not readily available in public sources. However, similar top drive systems from that era, such as the NOV TDS-11SA, featured a main shaft with a 3-inch (76.2 mm) water course diameter and an Integrated Blowout Preventer (IBOP) pressure rating of 15,000 psi (1,034 bar)