High-Precision Custom Heat Sinks
HeatsinkMaker engineers and manufactures high-performance thermal dissipation solutions for power electronics, telecommunications, automotive EV systems, and high-density industrial computing. From rapid DFM analysis to multi-axis CNC prototyping and mass production.
Rapid Engineering Specification
RFQ DeskProduction Facility
High-Precision CNC Centers
Thermal & Mechanical Engineers
Material Certification
Engineered Thermal Dissipation Architectures
HeatsinkMaker provides custom thermal fabrication using specialized metallurgical forming, precision cutting, and advanced hermetic sealing to meet rigorous cooling demands.
Extruded Heat Sinks
Cost-effective aluminum 6063-T5 solutions for medium-to-high volume production. Custom cross-sections, high aspect ratio fin designs, and integrated mounting channels.
- • Fin Aspect Ratio: Up to 24:1
- • Secondary CNC milling, tapping & slotting
- • Standard & high-density fin profiles
Skived Fin Heat Sinks
Carved directly from one continuous block of solid copper or aluminum. No thermal contact resistance between fin and base plate, yielding optimal conduction.
- • Fin Thickness down to 0.2 mm
- • High-density fin spacing: 0.5 mm pitch
- • Ideal for restricted-airflow enclosures
Liquid Cold Plates
Engineered cooling plates utilizing vacuum brazing, friction stir welding (FSW), and deep-hole drilling for battery packs, IGBT converters, and server racks.
- • Internal turbulator & micro-channel profiles
- • Working pressure rated up to 15 bar
- • 100% pressure drop and helium leak tested
Heat Pipe & Vapor Chamber Assemblies
Integrated two-phase cooling modules combining sintered copper powder heat pipes, stamped aluminum zipper fins, and precision base blocks for localized heat spreading.
- • Copper-water sealed two-phase systems
- • Thermal conductivity > 5,000 W/m·K
- • Nickel plated with epoxy or solder bonding
CNC Precision Machined Components
Dedicated 3-axis, 4-axis, and 5-axis vertical machining centers handling complex geometrical cavities, fine surface flatness, and thermal interface recesses.
- • Surface flatness within 0.02 mm / 100 mm
- • Surface roughness down to Ra 0.4
- • In-house CMM verification reporting
Bonded & Folded Fin Stacks
High-density fin arrays mechanically bonded or brazed into grooved aluminum/copper base plates, maximizing convective heat transfer in constrained spaces.
- • Mixed material setups (Cu base + Al fins)
- • Fin aspect ratios exceeding 40:1
- • Specialized structural thermal epoxies
Precision Manufacturing Tolerances & Parameters
Our manufacturing plants operate under rigid statistical process controls. Every component produced by HeatsinkMaker is engineered to meet strict thermal interface requirements and mechanical tolerances.
| Parameter / Capability | Standard Tolerance | Precision Tolerance |
|---|---|---|
| CNC Machining Accuracy | ±0.05 mm | ±0.005 mm |
| Thermal Contact Surface Flatness | 0.05 mm / 100 mm | 0.015 mm / 100 mm |
| Fin Thickness (Skiving) | 0.3 mm – 0.5 mm | 0.15 mm ±0.02 mm |
| Fin Gap Spacing | 1.0 mm – 2.0 mm | 0.35 mm ±0.03 mm |
| Liquid Cold Plate Hermetic Leak Rate | < 1×10-5 mbar·L/s | < 1×10-8 mbar·L/s |
| Surface Roughness (Ra) | Ra 1.6 μm | Ra 0.4 μm |
| Anodizing Layer Uniformity | 8 – 15 μm | 20 – 25 μm Hard Anodize |
Structured B2B OEM / ODM Engagement Workflow
How HeatsinkMaker collaborates with your thermal design and sourcing engineering teams.
DFM & Simulation
Review 3D models, thermal dissipation budgets, CFD aerodynamic models, and material suitability within 24–48 hours.
Rapid Prototyping
High-speed CNC machining or rapid skiving tooling to deliver functional test samples within 5 to 7 business days.
Validation & Tooling
CMM dimensional inspection, thermal resistance wind tunnel validation, and burst pressure testing for liquid blocks.
Mass Manufacturing
Production scaling with dedicated QA jigs, automated surface finishing, continuous batch tracing, and palletized export packaging.
Engineered for High-Stress Thermal Applications
Our customized cold plates and heat sink assemblies operate in mission-critical environments across international markets.
EV Inverters & Battery Packs
Lightweight aluminum friction stir welded cooling plates with high thermal shock tolerance for OBCs, DC-DC converters, and motor drivers.
5G Remote Radio Units (RRU)
High-aspect-ratio natural convection heat sinks designed for outdoor IP67 environments with corrosion-resistant coatings.
IGBT & Thyristor Modules
Ultra-flat copper and copper-embedded aluminum bases offering minimal contact thermal resistance for solar inverters and wind converters.
AI Accelerators & Server Blades
Hybrid vapor chamber assemblies and direct-to-chip liquid cold plates capable of handling localized fluxes up to 500W/cm².
Imaging & Laser Equipment
Vibration-free, silent liquid chill blocks with tight fluid cleanliness controls conforming to medical device standards.
BESS Thermal Plates
Large-format extruded and roll-bonded liquid circulation plates ensuring temperature uniformity across large battery cell banks.
Ready to Validate Your Thermal Design or Request an RFQ?
Send your specifications, CAD models (STEP/IGES), or drawings. Our senior thermal engineering team will provide a comprehensive DFM assessment and quotation within 24 to 48 hours.