The 350-ton Main Drive of the Tunnel Boring Machine (TBM) is a marvel of modern engineering, designed to take on the most daunting of challenges—drilling through entire mountains. This powerful piece of machinery is at the heart of tunnel construction projects around the world, capable of cutting through solid rock with precision and efficiency. Its immense power, combined with advanced technology, allows it to create tunnels that are vital for transportation, infrastructure, and energy projects. The sheer weight and strength of the 350-ton Main Drive are matched only by its ability to perform under extreme conditions, making it an indispensable tool in the construction industry. As it grinds its way through the toughest terrains, the Main Drive demonstrates the incredible capabilities of human ingenuity and engineering. For those involved in large-scale construction projects, experiencing the operation of this colossal machine is both awe-inspiring and essential to understanding the future of infrastructure development.