A copper liquid cold plate with machined internal channels is integrated with a heat sink into one module. The copper plate handles the highest heat flux through liquid cooling, while the heat sink spreads and dissipates heat from adjacent components by airflow. The assembly is leak and flow validated.
Assembled vs. monolithic vs. embedded-tube. An assembled cold plate is built by joining separate parts — a machined base, a cover, and integrated copper tubes, heat pipes or fin packs — sealed with mechanical fasteners, epoxy, or O-ring seals. This modular route keeps initial cost and tooling low and lets the layout change quickly between prototype iterations, at a low-to-moderate heat-load rating. A monolithic cold plate (FSW, vacuum-brazed, or deep-drilled) is machined from a single sealed body for higher heat flux; an embedded-tube plate presses or solders a tube into a base groove. If your goal is design flexibility, quick re-spins and a cost-effective solution for moderate heat, an assembled cold plate is the right fit.
Maximum heat extraction at the source.
Air cooling for surrounding electronics.
Concentrated plus distributed cooling.
Ready to install.
Airtightness and flow validation.
| Base Material | Copper (high conductivity) |
|---|---|
| Cooling Circuit | Machined channels / integrated copper tube, heat-pipe or fin-pack routing |
| Assembly Method | Separate parts joined by mechanical fasteners, epoxy bonding, or O-ring / elastomer seals |
| Internal Architecture | Machined base + cover with integrated copper tube / heat-pipe / fin-pack routing |
| CNC Machining Tolerance | As tight as +/-0.005 mm on milling / drilling |
| Dimensional Inspection | Hexagon CMM +/-0.001 mm; 2.5D optical projector |
| Leak Testing | 100% in-house airtightness leak detection (LCP testers) |
| Flow Validation | Two-stage flow-resistance measurement; in-house thermal test lab |
| Surface Treatments | Anodizing, passivation, precision sandblasting |
| Quality System | ISO 9001:2015; IATF 16949:2016 |
| Capacity | 60,000+ thermal parts per year |
| Lead Time | Typical samples 7-15 days; production scheduled to volume |
Note: the table lists KingKa's verified assembled cold plate build options and capabilities. Final geometry, channels, ports and finish are confirmed against your drawing.
KingKa controls every step of the assembled cold plate build in-house, from incoming-material inspection to final CMM sign-off. The workflow below reflects the modular split-part assembly used for this cold plate.
Design & CFD. 3D Pro/E layout with CFD thermal review sizes the cooling circuit and balances flow for the target heat load.
CNC machining. The base and cover are machined to +/-0.005 mm, with channels, mounting holes and ports matched to your drawing.
Part preparation. Copper tubes, heat pipes or fin packs are formed and fitted to the base routing for the selected cooling path.
Assembly & sealing. The separate parts are joined and sealed - mechanical fasteners, epoxy bonding, or O-ring / elastomer seals - into the final module.
Leak & flow validation. Every assembly passes 100% airtightness leak detection and two-stage flow-resistance testing.
Dimensional CMM inspection. Hexagon CMMs (to +/-0.001 mm) verify dimensions, mounting holes and ports against your CAD.
100% airtightness leak detection - dedicated LCP leakage testers confirm every assembly.
Two-stage flow-resistance testing - channels clear and pressure-stable.
Hexagon CMM & 2.5D projector - dimensional verification to +/-0.001 mm against your drawing.
Seal & joint inspection - fastener torque, bond coverage and O-ring seating verified per plate.
Surface-finish control - anodize / passivation / sandblasting verified for corrosion and contact.
Copper cold plates with heat sink serve applications needing combined air and liquid cooling:
High-power processors
GPU & AI accelerators
Power modules
Laser & optical systems
Combined air-liquid cooling
Provide your heat sources, airflow and coolant conditions. KingKa builds the copper cold plate and integrates the heat sink to your drawing and acceptance criteria.
For buyers, KingKa is a direct manufacturer with 16+ years of thermal-production experience, 50+ CNC centers (3-/4-/5-axis) and a stated 60,000+ parts per year, certified to ISO 9001:2015 and IATF 16949:2016. Engineering support includes in-house CFD thermal simulation, FEA and 3D Pro/E design before tooling.
From drawing to volume. Send your STEP/CAD file and thermal budget for an assembly design proposal matched to your heat load and cost target.
Flexible supply. Prototypes typically 7-15 days; production scheduled to your forecast.
One quality system. Prototype, pilot and production all carry 100% leak and CMM inspection.
R&D backing. Dongguan Nancheng R&D center supports channel/fin/tube design, validation and scale-up.
