Custom Thermal Solutions
Pin Fin Heat Sink Manufacturing for High-Power Electronics
We design and manufacture custom pin fin heat sinks in aluminum and copper for high-power electronics. From early thermal concept and DFM review through prototyping, testing, pilot run and mass production, our engineering and manufacturing team turns your drawings and thermal targets into repeatable, production-ready parts.
Why choose a pin fin heat sink for your project
Pin fin heat sinks deliver measurable performance advantages in real-world electronic cooling applications, especially where airflow is constrained or unpredictable.
Multi-directional airflow cooling
Pin fins work with multi-directional or impinging airflow, delivering consistent thermal performance in tight enclosures and non-uniform fan layouts.
Compact footprint, high surface area
Dense pin arrays increase cooling area without overly restricting airflow, helping you meet junction temperature limits in constrained spaces.
Lower thermal resistance
Cold-forged, one-piece structures remove bonded interfaces so more heat moves from the base into the fins efficiently.
Predictable pressure drop
Tunable pin pitch, height and pattern help you balance thermal resistance and fan selection for optimal system-level efficiency.
Simplified assembly
Integrated bases reduce component count and solder joints, cutting assembly steps and field failure risks significantly.
How we build pin fin heat sinks
We select the manufacturing process around your thermal target, geometry, volume and cost requirements.
Cold Forging
Integrated, high-density pin arrays in Al 6063 or Cu C1100 for maximum thermal performance.
CNC Machining
Precision features, flatness control, drilling and tapping with ±0.002–±0.008 mm capability.
Soldering or Brazing
Hybrid structures and heat pipe integration when your thermal design requires it.
Surface Finishing
Anodizing, hard anodizing and nickel plating for durability, emissivity and corrosion resistance.
This multi-process approach lets us achieve the required pin geometry, base thickness, mounting features and finish while controlling cost from prototype to mass production.
Engineering first, then manufacturing
A pin fin heat sink performs only as well as it's engineered. We align the design with heat load, heat source size, airflow, pressure drop, space constraints, mounting and target cost.
What you get from our engineering support:
- ●Thermal solution development, DFM and mechanical design
- ●Process selection based on performance and volume
- ●Rapid prototypes for early thermal testing
- ●Optimization before pilot run for right-first-time design
How fast prototyping helps your schedule:
- ●Shorter design loops with quick geometry trials
- ●Earlier risk discovery through thermal and airflow testing
- ●Smoother ramp from prototype to pilot to mass production
Pin Fin Heat Sink Capability
Our manufacturing capabilities span materials, processes and validation to deliver production-ready pin fin heat sinks.
| Main Materials | Aluminum 6063, Copper C1100 |
| Primary Process | Cold Forging (integrated base and pin array) |
| Maximum Fin Aspect Ratio | Up to 35:1 (application- and geometry-dependent) |
| Fin Geometry | Round, Oval, Straight or Combination |
| Fin Draft Angle | Not required for suitable cold-forged designs |
| Secondary Processing | CNC machining, drilling, tapping, surface finishing |
| Surface Finishing | Anodizing, Hard Anodizing, Nickel Plating, Passivation, Sandblasting, Polishing, Cleaning |
| Machining Capability | CNC machine capability ±0.002–±0.008 mm (feature- and setup-dependent) |
| Thermal Validation | Thermal resistance testing; airflow/pressure drop evaluation |
| Development Path | Prototype → Validation → Pilot Run → Mass Production |
| Typical Applications | Power electronics, motor drives, inverters, LED/lighting, EV power modules, telecom, servers |
If a pin fin array alone cannot meet your thermal target, we can integrate heat pipes or transition to a liquid cold plate. Our team evaluates both air and liquid cooling paths to keep your product on spec and on schedule.
Quality, testing and inspection
Our quality assurance process ensures every pin fin heat sink meets your specifications and performs as designed.
Dimensional inspection and CMM for critical features and flatness
Thermal resistance testing for design validation and correlation
Surface and cosmetic inspection for consistent quality
Cleanliness and finishing verification for critical applications
Equipment and capacity
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50 CNC machining centers; skiving, stamping, soldering/brazing and friction stir welding available for broader thermal assemblies
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Cold forging for aluminum and copper pin fin heat sinks
Monthly production capabilities
Aluminum heat sinks
200,000 pcs/month
Soldered aluminum/copper heat sinks
150,000 pcs/month
Precision machined parts
300,000 pcs/month
Industries we serve
From power electronics to EV systems, our pin fin heat sinks support demanding thermal applications across industries.
Power Electronics, UPS & Power Supplies
Solar Inverters & Energy Storage
EV Power Electronics
Motor Drives & Industrial Automation
Telecommunications & 5G Equipment
Servers, AI & Computing Hardware
Laser, Medical & Optical Equipment
Semiconductor Equipment & Test
LED & Industrial Lighting
Transportation & Renewable Energy
What to send for a fast, accurate RFQ
To provide accurate pricing and lead times, please attach the following to your inquiry:
Required information:
- ▸2D drawing and 3D CAD file (AutoCAD, SolidWorks or Creo)
- ▸Heat load (W) and maximum component temperature
- ▸Heat source size and location
- ▸Ambient temperature and available airflow or pressure drop
- ▸Available installation space and mounting constraints
- ▸Target volume (prototype, pilot, annual mass production)
What you can expect
DFM Feedback
Process recommendation (cold forging vs. alternative) with design for manufacturability review
Lead-time and Cost Options
Pricing and delivery options by geometry and volume
Prototype Plan
Validate thermal and mechanical targets before locking tooling
From prototype to production
Whether you need a single custom aluminum pin fin heat sink for a new build or a copper design for a high-flux module, our goal is the same: make the solution manufacturable, repeatable and ready for production.
Send your RFQ with drawings and thermal requirements, and we'll recommend the most suitable pin fin heat sink design and manufacturing route for your application.
Request a QuoteSend your RFQ
Prefer email? Contact us at info@heatsinkmaker.com or call