World’s Largest Range-Extended Rotary Drilling Rig Unveiled in Sunward
CHANGSHA, China – On March 31, Sunward unveiled the world’s largest range-extended rotary drilling rig in Changsha, marking a major advancement in electric construction equipment. The new rig features an operating weight of 200 tons, a torque of 620 kN·m, and a maximum drilling diameter of 3,500 mm. It incorporates breakthrough technologies, including multi-motor synchronization, transient […]