Custom Skived Heat Sink Manufacturer
Precision skived fin heat sinks in aluminum and copper, manufactured from your 2D/3D drawings — with integrated CNC machining, heat pipe and full module assembly under one roof. No MOQ, ISO 9001:2015 certified, quotes within 24 hours.
Drawing-Based Custom Manufacturing
Every skived heat sink is manufactured to customer drawings and project requirements. We support prototypes, engineering samples and volume production.
Aluminum & Copper Skiving
Custom skived fin heat sinks in aluminum and copper, with CNC secondary machining, drilling, tapping, surface finishing and heat pipe integration available.
From Prototype to Production
We support projects from prototype validation to volume production. Send us your 2D/3D drawings for manufacturability review and quotation.
In-House Manufacturing for Custom Skived Heat Sinks
From skiving and CNC machining to thermal design support, BY Thermal provides in-house manufacturing and engineering support for custom aluminum and copper heat sinks based on customer drawings.
Skiving, CNC Machining & Engineering Support
Skiving + CNC + Heat Pipe + Assembly — One Supplier
Don't source your heat sink from multiple vendors. BY Thermal combines skived fin cores with CNC machining, heat pipe integration and complete module assembly in one factory, so tolerances, lead time and quality are controlled under one roof.
Skiving + CNC Machining
Skived fin cores are finished with in-house CNC secondary machining — base flatness, mounting holes, threads, steps and complex profiles — for tight tolerances on every feature.
CNC MillingDrilling & TappingTight Tolerances
Skiving + Heat Pipe
Embedded heat pipes spread heat rapidly across the base for large-area, high-heat-density modules — combining ultra-dense skived fins with heat-pipe spreading power.
Embedded Heat PipeHigh Heat FluxLarge-Area Spreading
Skived Heat Sink Assemblies
Complete cooling assemblies — skived fins, heat pipes, sheet metal housings and mounting hardware integrated and inspected as a finished thermal module, ready to install.
Sheet MetalFull AssemblyInspection & TestAdvanced Manufacturing Capabilities
High-Precision Skived Fin Manufacturing
Skiving machines
self-developed, multiple working widths
Fin thickness
From 0.05 mm to 2 mm (1 mm for copper heat sinks)
Fin Width
Maximum Fin Width: 1200mm
Fin height
Maximum Fin Height: 150mm
CNC machining
For base, top plate and mounting features
Surface treatment
Passivation, anodizing, nickel plating, etc
Materials
Material: Aluminum, Copper. Fin type: wave-fin, curved-fin, dual-side
Other
Heat pipe integration, Sheet metal
What Is a Skived Heat Sink
Skived heat sinks are manufactured by slicing fins directly from a solid copper or aluminum blocks, creating a monolithic / single-piece structure with no interface between fins and base.
This structure eliminates thermal interface resistance and allows extremely high fin density, making skiving ideal for high power and space-limited cooling applications.
The process requires minimal tooling and supports both prototype and production runs.
One-piece aluminum or copper fins
Fins are cut directly from a single solid block — no separate fin parts to bond.
No thermal resistance between base and fins
The one-piece design removes the thermal interface that limits bonded or soldered fins.
Much higher fin density than extrusion
Ultra-thin fins deliver more surface area in the same space for better heat dissipation.
Why Skiving Technology
Why Choose Skiving Over Other Heat Sink Technologies?
| Technology | Limitation & Advantages |
|---|---|
| Extrusion | Fin density limited |
| Bonded fins | High thermal resistance, risk of fin detachment |
| Brazed fins | Higher cost, complex manufacturing process |
| Skived fins |
|
No NRE for custom designs (Non-recurring Engineering)
Get your custom skived heat sink manufactured without additional engineering setup fees on standard custom designs.
Skiving is a precision process for producing thin-fin heat sinks. For applications requiring maximum heat dissipation in compact spaces, skived heat sinks provide more reliable and efficient solution.
How to Choose the Right Material for Skived Fin Heat Sinks?
Copper Materials for Skived Fin Heat Sinks
C11000 Pure Copper (390–400 W/m·K)
Delivers outstanding thermal conductivity at a budget-friendly cost, ideal for standard high-power cooling projects.
C10100/C10200 Oxygen-Free Copper (390–400 W/m·K)
Ultra-high-purity copper with minimal oxide barriers, designed for premium electronics and mission-critical thermal systems.
Aluminum Materials for Skived Fin Heat Sinks
1050 / 1060 / 1070 Pure Aluminum (230–240 W/m·K)
Lightweight, cost-effective high-conductivity aluminum, perfect for large-format skived heat sink production.
3003 Al-Mn Alloy (190–200 W/m·K)
Excellent rust & moisture resistance with moderate thermal performance, suited for outdoor and humid industrial cooling equipment.
6063 Al-Mg-Si Alloy (200–210 W/m·K)
Offers a balanced combination of mechanical rigidity and heat transfer efficiency for mass-produced structural heat sinks.
What Surface Finishes Are Available for Skived Fin Heat Sinks?
Copper Skived Fin Heat Sinks
Anti-Oxidation Passivation (Standard Finish)
Default protective treatment providing basic oxidation & tarnish resistance; ideal for indoor general use when plating is unnecessary.
Electroless Nickel Plating (MIL-C-26074E Grade A, 25μm)
Heavy military-spec nickel layer with top-tier salt spray & corrosion resistance for severe harsh working environments.
Electroless Nickel Plating (MIL-C-26074E Grade B, 13μm)
Economical mid-thickness plating with dependable moderate corrosion protection for mild industrial environments.
Electroless Nickel Plating (ASTM B733-04 SC0 0.5μm / SC1 5μm)
Ultra-thin conductive nickel coating, retains excellent solderability for electronic thermal contact assemblies.
Aluminum Skived Fin Heat Sinks
Standard Decorative Anodization (MIL-A-8625 Type II)
Cost-effective anti-oxidation protection; black variant features high emissivity to improve natural convection heat dissipation.
Hard Anodization (MIL-A-8625 Type III)
Thick dense oxide layer with superior abrasion and salt-spray resistance for harsh, high-wear environments.
Chromate Chemical Conversion Coating
Enhances corrosion resistance and paint adhesion while fully retaining surface electrical conductivity.
Raw Natural Finish (Not Recommended for Mass Production)
Uncoated bare aluminum, only for prototypes, lab testing and non-critical thermal components.
Skived Fin Design Reference
BY Thermal provides custom skived fin heat sinks with a wide range of fin profiles, including straight fins, wave fins, dual-sided fins, fold fins, fin-on-fin fins, and multi-height composite fins, as well as microchannel liquid cooling plates. We offer various surface finishes per customer requirements, such as nickel plating, black anodizing, hard anodizing, and blue anodizing. Heat pipes can be embedded into the base plate, and multiple skived fin units can be assembled together with sheet metal enclosures.
Standard Designs
Dual-sided Fin
Dual-sided Fin
Fold Fin
Multi-height Fin
Round
Wave Fin
Fin-on-fin Fin
With Heat Pipe
With Heat Pipe
Nickel Plating
Black Anodizing
High Aspect RatioAssembling / Kit
Microchannel
Extra LengthCustom Skived Heat Sink Development Process
Drawings, samples and NDA are welcome.
Drawing review
DFM / thermal design support
Prototype manufacturing
Inspection
Mass production
Typical Applications
AI servers & data centers, Laser equipment cooling, Energy storage & power inverters, Photovoltaic systems, Industrial electronics, Aerospace
AI data center
Maximum thermal performance for AI servers and data centers.
5G Implementation
High-density cooling for 5G and communication electronics.
Energy storage system
Reliable thermal management for energy storage & power inverters.
Laser Equipment
Precision cooling for laser and high-flux optical systems.
New Energy
Cooling for photovoltaic systems and industrial electronics.
LED Lighting
Compact, high-efficiency cooling for large LED lamps.
Trusted by Engineering Teams Worldwide
We export custom skived heat sinks, CNC-machined thermal parts and complete heat sink assemblies to engineering and manufacturing companies across Europe, the Americas and Asia-Pacific.
Europe
Americas
Asia-Pacific
Backed by Leading Technology Companies
BY Thermal works with and supplies engineering teams across the electronics, laser and server industries. These are some of the technology partners we collaborate with:
* Logo usage for reference only. All brand names and logos are the property of their respective owners.
Why Choose BY Thermal as Your Custom Skived Heat Sink Manufacturer?
We Build Our Own Skiving Machines & Produce Skived Heat Sinks In-House
Different from middleman trading firms, we independently design and fabricate skiving equipment, with full heat sink production completed in our factory. This enables complete control over fin profile precision, dimensional accuracy and consistent production output.
- Core expertise focused on custom skived fin heat sink manufacturing
- Robust production capacity for large-format & ultra-high fin density structures
- Full technical support for complex integrated thermal module assemblies
In-House CNC Machining & CMM Precision Inspection
All machining processes and dimensional testing are performed internally, guaranteeing tight tolerance control and stable uniform quality across all orders.
Professional Thermal Design Engineering Support
Our thermal engineering team optimizes fin geometry, base plate thickness and air flow layout fully customized to your unique heat dissipation demands.
Rapid Prototyping & Reliable High-Volume Mass Production
We support flexible order quantities ranging from prototype sampling to large batch manufacturing, paired with competitive short lead times.
Custom Skived Heat Sink Manufacturer for Large and Microchannel Designs
Frequently Asked Questions
Q1: Can you produce according to drawings?
Q2: What is your MOQ?
Q3: Do you offer thermal design support?
Q4: Do you ship globally?
Q5: What are your technical parameters related to skiving capacity?
Start Your Custom Skived Heat Sink Project
Send us your 2D/3D drawings and project requirements — our engineers will review manufacturability, suggest the right material, finish and heat pipe configuration, and come back with a cost-optimized quotation.
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