China's engineering prowess reached new heights yesterday as the world's largest range-extended rotary drilling rig debuted in Changsha, Hunan Province. The 200-tonne behemoth, designed for super-sized infrastructure projects, promises to reshape construction capabilities across Asia and beyond.
With a groundbreaking torque of 620 kNm and a 3.5-meter maximum drilling diameter, the machine addresses critical needs in bridge piling, offshore wind farms, and urban megaprojects. Its multi-motor synchronization system and advanced energy recovery technology achieve over 70% efficiency in heavy-load operations – a 5-10% improvement over previous models.
"This innovation demonstrates our commitment to sustainable infrastructure development," stated a representative from the Hunan-based manufacturer. The rig's energy-saving features align with China's 2026 green manufacturing targets, offering potential cost savings for international projects under Beijing's Belt and Road Initiative.
Industry analysts predict the technology will particularly benefit Southeast Asian nations accelerating railway and port modernization this year. The launch comes as APEC members prepare for major infrastructure discussions at November's APEC Leaders' Meeting in Manila.
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World's largest rotary drilling rig unveiled in Changsha, China
cgtn.com








