China's Mischief Threatens Global Paralysis in Mere Seconds
Jakarta, CNBC Indonesia - For years, the Celestial Empire, China, has been known as one of the central hubs in the mass development of global technological innovation. However, a recent report concerning China’s latest cutting-edge innovations has triggered high-level geopolitical concerns. This innovation is said to have the potential to cripple global communications networks in the blink of an eye.
China is reported to have developed a high-capability new device that can be categorised as a strategic ‘weapon’ for disabling cross‑continental communications networks. The device is a super‑sophisticated submarine cable cutting system designed by the China Ship Scientific Research Center (CSSRC).
The device is specifically able to target and sever submarine cables that underpin about 95% of global data traffic. Note that global submarine cable infrastructure is designed using materials with extreme durability, such as a combination of steel layers, protective rubber, and thick polymers. Nevertheless, the new cutting instrument from China is claimed to be able to cleave that thick armour with ease.
Able to operate at extreme depths
Technically, the Chinese cutting device can operate with precision at depths of up to 4,000 metres below the sea surface. This capability is roughly twice the average depth of existing global submarine communications infrastructure. The cutting instrument is designed to integrate fully with China’s crewed and unmanned submarine fleets, including the venerable Fendouzhe (Striver) and the Haidou series.
Initially, the blueprint for developing this advanced technology was intended to support civilian rescue missions at sea and the commercial offshore mining interests. However, the dual-use potential of this technology as a tool for military sabotage to cut the lifelines of submarine telecommunications has triggered international concerns among Western countries and their allies.
According to a report from the South China Morning Post, a scenario of cutting cables near global chokepoints—such as in the waters around Guam—could directly sever international communications and trigger a massive geopolitical crisis. The Guam region itself plays a crucial role in the United States’ strategic defence architecture in the island chain.
Diamond-coated to pierce the steel armour
A team of engineers led by Hu Haolong has overcome the highly complex technical challenges associated with the extreme conditions on the ocean floor. At a depth of 4,000 metres, where hydrostatic pressure exceeds the extreme range of 400 atmospheres, the team addressed this by using a shell based on a special titanium alloy and an oil‑compression sealing system to prevent implosion or catastrophic failure due to pressure, even in long-term use scenarios.
Given that conventional blades would be unlikely to cut through the thick steel-armoured cable, Hu Haolong and his team integrated a diamond-coated grinding wheel of 150 mm (6 inches). The wheel rotates at extremely high speeds of up to 1,600 RPM, generating wear capable of eroding the steel while minimising drag from seabed sediment.
The device is efficiently designed to accommodate the limited power supply on submarines, relying on a one‑kilowatt motor with an 8:1 gear‑ratio damping system. Under the sea, with near-zero visibility, the cutter is controlled using an advanced robotic arm system and supported by ultra-precise positioning technology to ensure cutting accuracy.
Beijing Signals Strong Maritime Power
The deployment of this cutting-edge technology marks a new milestone in Beijing’s strategic expansion over control of the world’s submarine infrastructure. China is currently recorded as operating the world’s largest fleet of crewed and unmanned submarines (UUVs), capable of reaching every corner of the oceans.
The main advantage of the new cable-cutting device lies in its operational flexibility, which can be controlled from a clandestine operation on an unmanned platform. This capability enables China to exploit strategic data traffic choke points without being detected on the surface.
This new capability has sparked heated debate and deep concerns within the international military research community. Moreover, the world was recently jolted by the destruction of Russia’s underwater natural gas pipeline network amid escalating geopolitical tensions.
Nevertheless, Chinese scientists say that the device—reported to have successfully cut a 60 mm thick sample cable during a land-based trial— is oriented to support the expansion programme “development of sea resources.” This narrative aligns with the global trend of advanced economies increasingly shifting their economic focus toward exploiting deep-sea resources.
The scientists add that, regardless of debates about its military function, this leap in innovation will substantially boost China’s maritime exploration capabilities, accelerate growth of the blue economy, and strengthen Beijing’s political bargaining power as a dominant maritime power on the global stage to support the country’s long-term strategic objectives.