Large-scale Commercial Breakthrough of Data Center Liquid Cooling

75-80% Cold Plate Share and a 2026 Breakout: The Numbers Behind Liquid Cooling's Commercial Tipping Point

With AI training server chips breaking the kilowatt threshold, liquid cooling has become a rigid necessity, with 2026 marked as the breakout year as rack density climbs from 5-8kW air-cooled racks to 40-80kW mainstream AI racks and future 100-200kW platforms. Cold plate cooling occupies 75%-80% of the domestic market with low transformation difficulty and controllable costs, while immersion cooling achieves ultra-low PUE for hundreds-of-kilowatts clusters. The complete industrial chain spans upstream core components and special coolants—the core investment track—midstream system integration and downstream scenarios. EXTRCOOL provides one-stop liquid cooling solutions.

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Area 51, NV, USA

EXTRCOOL INDUSTRY LIMITED

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The CDU, the Heart and Brain Liquid Cooling Cannot Do Without

Silent When Healthy, Fatal When Failing: The Five Selection Questions That Decide Whether the CDU Holds the Loop Together

The CDU plays the role the heart plays: it produces no cold, but without it the coolant never moves. Its heart role pumps and distributes via the manifold, while its brain role senses and controls. Selection answers five questions: total flow above all cold plate minimums, head above maximum loop resistance, exchanger capacity above peak load with fouling margin, redunda...

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The Manifold That Decides Where the Coolant Goes

From CDU to Cold Plate and Back: How the Manifold's Flow Distribution, Not Total Flow, Decides Precision Cooling

Rising AI GPU power is moving liquid cooling from whether it can cool to cooling precisely, and the manifold decides whether coolant reaches every position as it should. It distributes coolant through main channels to parallel branches and collects the heated return, following CDU to supply manifold to cold plate to return manifold to CDU. Poor design lets near-end branc...

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How a Liquid Cooling Manifold Gets Made, from Material to Final Acceptance

316L to Helium Testing: The Four Links—Material, Machining, Cleanliness and Verification—That Decide Manifold Quality

Manifold manufacturing starts with material, and 316L is the safer default, with coolant compatibility outweighing thermal conductivity. CNC machining forms main channels, branches and interface holes, where holding channel positions matters more than drilling; one-piece machining avoids weld deformation, while tube and plate assemblies add laser, TIG or brazing. Deburri...

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