Our machining scope supports heat transfer, coolant distribution, fluid connection and mechanical integration for liquid-cooled computing systems.
Precision-machined plates that transfer heat from CPUs, GPUs and AI accelerators to circulating coolant.
Machined blocks and assemblies distributing coolant across multiple cold plates, server nodes or cooling loops.
Connector bodies, sleeves, retaining parts and precision mating interfaces for secure fluid connections.
Threaded adapters, elbows, hose-barb fittings, nipples, bulkhead fittings and inlet/outlet components.
Brackets, standoffs, clamps, support blocks and alignment hardware for cooling assemblies.
Material
SUS304
Material
The material is CU1020, with a copper content of ≥99.96% and a conductivity of ≥96%.
Material
CU1020 (with copper content of 99.97% (with oxygen content ≤ 0.002%, conductivity ≥ 100% ACS)
Material
SUS304,SUS316
| Comparison | Oxygen-Free Copper Liquid-Cooled Cold Plates | Stainless-Steel Precision Fluid Components |
|---|---|---|
| Material | Oxygen-Free Copper (high-thermal-conductivity pure copper) | 304/ 316L Stainless Steel |
| Function | Core thermal management component for AI computing servers. Internal flow channels dissipate high heat generated by power-hungry AI chips to realize efficient temperature equalization for high-power computing modules. | Fluid-control components for liquid-cooling systems, including valve spools, valve sleeves and fluid connectors. Responsible for coolant on-off & flow regulation; withstand high-pressure fluid sealing and resist coolant corrosion. |
| Tolerance Requirements | Overall dimension tolerance: ±0.02~±0.05 mm; Flow-channel depth tolerance: ±0.03 mm; Mounting hole tolerance: H7; Hole positional tolerance: ≤0.02 mm; Flatness of assembly surface: 0.03 mm per 100 mm. | Fit tolerance for inner-/outer-diameter mating surfaces: H6/h7; Coaxiality: ≤0.015 mm; Thread class: 6H/6g; Hole positional tolerance: ≤0.02 mm; Flatness of sealing end face: ≤0.02 mm |
| Surface Roughness | Inner wall of flow channel: Ra 0.8 - 1.6μm; Sealing mating surface: Ra 0.4 - 0.8μm; Non-mating exterior surface: Ra 1.6 - 3.2μm | Sealing & mating surface: Ra 0.2-0.8μm; Sliding-fit inner bore: Ra 0.4μm;Non-working surface: Ra 1.6-3.2μm |
| Additional Requirements | Burr-free; no residual copper chips inside flow channels; anti‑oxidation passivation treatment; pass high-pressure leak-testing with zero leakage. | Sharp-edge deburring; no metal chips inside internal passages; meet hydraulic-system cleanliness requirements; resistant to coolant corrosion. |
Oxygen-free copper is soft and prone to cutting-induced warpage after deep grooving on large cold plates. With optimized tooling fixtures and layered cutting strategies, we control deformation strictly to guarantee flatness and assembly sealing performance, eliminating the risk of liquid leakage.
Deep, intricate flow-channel cavities easily trap copper/swarf chips, which may clog pipelines or damage server pumps. Our specialized deburring plus high-pressure flushing process ensures zero residual metal debris inside cavities to meet liquid-cooling cleanliness standards.
Valve assemblies demand tight-clearance sliding sealing with strict coaxiality and roundness. Poor machining causes sticking or fluid leakage. We implement matched precision grinding to achieve smooth sliding while maintaining reliable high-pressure sealing.
AI liquid-cooling projects iterate rapidly with frequent prototype updates and mixed small-batch orders. We provide quick drawing evaluation, custom tooling and short lead times to support OEM customization for fast-moving computing projects.
Bare oxygen-free copper oxidizes quickly. Oxidation degrades thermal conductivity and brings assembly contamination. Our passivation treatment prevents oxidation during storage and final assembly.
Liquid-cooling leakage can destroy costly AI chips. Every batch undergoes pressure leak‑testing to deliver reliable, risk-free components.
3-axis / 5-axis CNC milling, precision turning, drilling & reaming; deformation-controlled layered cutting; manual & ultrasonic internal deburring; precision grinding; high-pressure cavity flushing; oxygen-free copper anti-oxidation passivation; thread machining; sharp-chamfer deburring; air-pressure / hydraulic leak testing.
Machine oxygen-free copper cold-plate cavities, flow channels and mounting holes.
Produce rotary parts such as spools, sleeves and connectors.
Precision OD grinding for shafts and spools to ensure roundness and surface finish.
Finish reference assembly surfaces of cold plates for flatness control.
Remove cutting oil and metal chips from internal cavities.
Anti-oxidation surface treatment for oxygen-free copper parts.
Measure positional tolerance, overall dimensions, flatness and full‑feature inspection for complex cavities
Routine dimensional sampling inspection
Verify Ra values for mating surfaces
Inspect roundness & coaxiality of spools and sleeves
Pressure-based leak verification for cold plates and fluid assemblies
Visual check for burrs and surface defects on flow channels & sealing surfaces
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