AI Liquid Cooling Revolution Laser Manufacturing & Full Inline Inspection Reshaping Data Center Infrastructure
Over the past decade, data center development has centered on computing power. In the next decade, thermal management will become the core bottleneck. As single GPU power consumption rises sharply from 300W to over 1000W, traditional air cooling has reached its physical and economic limits. High-end AI training servers including NVIDIA H100 (700W), B200 (over 1000W) and GB200 NVL72 racks (over 120kW) can no longer rely on air cooling. Direct-to-Chip liquid cooling has emerged as the mainstream solution for high-density computing scenarios, driving the rapid upgrade of data center liquid cooling infrastructure worldwide.
ASHRAE confirms that AI and HPC workloads are accelerating large-scale liquid cooling adoption. Leading tech firms including NVIDIA, Meta and Microsoft are actively deploying liquid cooling facilities. At GTC Taipei 2026, Jensen Huang announced the full mass production of NVIDIA’s next-gen Vera Rubin AI superchip platform. The Vera Rubin NVL72 rack integrates 72 Rubin GPUs and 36 Vera CPUs with 100% liquid cooling design, making AI GPU liquid cooling a standard configuration for next-generation high-power AI data centers.
The AI computing revolution has triggered a domino effect across China’s liquid cooling industrial chain, forming a complete ecosystem covering core components, liquid cooling IT equipment, turnkey solutions and supercomputing applications. According to industry forecasts, the domestic liquid cooling market will reach approximately RMB 130 billion by 2029. The booming deployment of AI supercomputing liquid cooling is driving comprehensive technological iteration and manufacturing upgrading across the industrial chain.
A complete liquid cooling system consists of precise metal pipelines and circulating coolant loops, where nearly all core components require high-precision laser processing. From cold plates and manifolds to CDUs and quick connectors, processing quality directly determines system reliability. Unlike air cooling systems relying on heat dissipation efficiency, the biggest risk for server rack CDU cooling systems is liquid leakage, which may cause server shutdown, GPU burnout or even entire data center outage.
Cold plates feature intricate microchannels and sealed cavities, requiring high-precision welding between substrates and cover plates. Hidden welding defects such as incomplete fusion and micro-cracks may cause delayed leakage after months of operation. With the breakthrough of 3D printed pure copper microchannel cold plate mass production, additive manufacturing is widely applied in cold plate fabrication. Defects including incomplete fusion, warpage and bulges will severely undermine cooling performance and operational stability of AI server CDU cooling systems.
Manifolds act as the fluid distribution hub, evenly delivering coolant to multiple cold plates. Welding defects will lead to abnormal pressure drop and unbalanced flow distribution, resulting in inconsistent heat dissipation across server trays. As the core terminal regulation component of smart CDU liquid cooling systems, manifold welding precision directly determines overall rack cooling uniformity and long-term operational stability.
As the "heart" of liquid cooling systems, CDU integrates stainless steel pipelines, heat exchangers and liquid storage units with numerous welding joints. Substandard welding causes leakage, pressure loss and loop failure. Compared with traditional heat dissipation modes, high-precision server rack liquid cooling CDU requires zero-defect welding to ensure continuous and reliable operation of high-density AI racks.
Universal Quick Disconnect (UQD) connectors support fast pipeline disconnection for routine maintenance. Long-term thermal cycling may expand tiny welding cracks and cause gradual leakage. Flexible bellows absorb system vibration and thermal expansion stress. Even minor welding defects at joints will deteriorate over long-term operation. These key connecting components are critical to improving the service life and stability of air liquid cooling CDU hybrid cooling systems.
With the rapid expansion of liquid cooling scale, traditional sampling inspection can no longer meet industrial standards. 7×24-hour running super-scale computing clusters require zero-defect manufacturing, as any tiny welding flaw may trigger massive operational risks. Laser welding full inline inspection has evolved from a conventional quality control tool to a core guarantee for high-reliability liquid cooling CDU infrastructure.
AI infrastructure iteration relies on in-depth technological mechanism research and strict manufacturing quality control. Adhering to the philosophy of "Perceiving the Unknown through Precision Sensing", Delight Optics empowers industrial partners with advanced laser welding detection technologies and professional services. The company commits to building more reliable, efficient and sustainable next-generation AI computing infrastructure, facilitating high-quality development of the global liquid cooling industry.
Recognized as a worldclass leader in liquid cooling, EXTRCOOL provides a comprehensive range of thermal management hardware—from dualmode CDUs and manifold assemblies to cold plates, reardoor heat exchangers, dry coolers, and containerized units—all purposebuilt for AI and HPC data centers. Designed for reliable performance, seamless interoperability, and easy scalability, these systems deliver a complete turnkey cooling solution. We partner with data center operators and enterprise clients across Western Europe, Eastern Europe, Northern Europe, Southern Europe, and Central Europe.
