Custom Heat Sink Manufacturer
BY Thermal manufactures custom aluminum and copper heat sinks from customer 2D/3D drawings, including skived, extruded, CNC-machined and heat-pipe-integrated designs. Send your drawings for manufacturability review and quotation.
- Aluminum and copper heat sinks made to customer drawings
- Skiving, extrusion, CNC secondary machining and heat pipe integration
- Prototype and production support for B2B engineering projects
Custom heat sink structures for drawing-based thermal projects.
Parent Capability Page
Custom Heat Sinks Made to Your Drawings
BY Thermal supports B2B engineers, purchasing teams and product developers with custom heat sinks manufactured from customer drawings. When standard heat sinks do not match the required space, mounting features or material requirements, a custom structure can be reviewed and manufactured according to the project drawing package.
This page helps you compare common custom heat sink manufacturing routes, including skiving, extrusion, heat pipe integration and CNC-machined thermal parts. Detailed product examples are linked from each section.
Use this page as the parent overview for custom air-cooled heat sink manufacturing options.
Product Types
Custom Heat Sink Product Types
Select the manufacturing route based on material, fin structure, heat source location, installation space, mounting features and quantity.
Skived Heat Sinks
Skived heat sinks are made by forming fins from the base material. They are suitable for projects that require compact fin structures and drawing-based customization in aluminum or copper. Skiving can also be combined with CNC secondary machining when mounting holes, slots or contact surfaces are required.
- Aluminum and copper skived structures
- Custom fin direction and base geometry
- CNC post-machining support
Extruded Heat Sinks
Extruded heat sinks use aluminum profiles as the base structure. They are suitable for profile-based designs where the cross-section can be formed by extrusion and then finished with CNC secondary machining, surface treatment and project-specific mounting features.
- Aluminum profile heat sink structures
- CNC machining after extrusion
- Surface treatment by project requirement
Heat Pipe Heat Sinks
Heat pipe heat sinks integrate heat pipes with skived, extruded or machined structures to help move heat from a concentrated source area to a larger heat dissipation area. The heat pipe route, contact method and assembly direction should be reviewed with the drawing.
- Heat pipe and heat sink integration
- Custom grooves and assembly features
- Suitable for offset heat source layouts
CNC-Machined Thermal Parts
CNC-machined thermal parts can include heat sink bases, cold plate components, thermal housings, mounting structures and copper thermal parts. This route is useful when the drawing requires holes, threads, pockets, steps, cutouts, locating features or precise contact surfaces.
- Heat sink bases and thermal housings
- Mounting holes, threads and pockets
- Aluminum or copper thermal parts
Process Selection
How to Select a Custom Heat Sink Manufacturing Method
| Manufacturing Method | Typical Structure | Main Advantages | Key Design Considerations | Best Suited For |
|---|---|---|---|---|
| Skiving | Fins formed from aluminum or copper base material | Good fit for certain high-density fin structures and integral base-fin designs | Material, fin geometry, base thickness, tool access and post-machining requirements | Compact air-cooled heat sinks with custom fin structures |
| Extrusion | Aluminum profile with repeated cross-section | Efficient for profile-based heat sink structures and repeatable designs | Cross-section feasibility, tooling, profile geometry, secondary machining and finishing | Aluminum heat sinks with consistent profile features |
| Heat Pipe Integration | Heat pipes integrated with skived, extruded or machined structures | Helps move heat from source areas to a larger fin or airflow region | Heat pipe route, groove design, contact method, working direction and assembly space | Projects with offset heat sources or limited thermal spreading area |
| CNC Machining | Machined bases, housings, pockets, cutouts and contact surfaces | Flexible for complex mounting and mechanical interface requirements | Material, machining access, contact surfaces, threads, slots, pockets and inspection points | Custom thermal parts with detailed mechanical features |
Materials
Aluminum and Copper Heat Sink Materials
Aluminum is commonly selected for custom heat sinks when a project needs a balance of weight, machinability and cost. It is suitable for extruded, skived and CNC-machined structures depending on the drawing and manufacturing route.
Copper can be selected when the design requires stronger local heat spreading or a copper contact structure. The final material should be confirmed according to the customer drawing, heat source, mechanical space, surface treatment and application requirements.
CNC secondary machining supports custom mounting and interface requirements after the main heat sink structure is formed.
Secondary Machining
CNC Secondary Machining for Custom Heat Sinks
CNC secondary machining can be applied after skiving, extrusion or base material preparation. It is used to create mechanical and assembly features that are specified in the customer drawing.
- Mounting holes and threaded holes
- Grooves, pockets, steps and cutouts
- Locating features and clearance areas
- Contact surfaces and installation faces
Finishing and Assembly
Surface Treatment, Heat Pipe Integration and Assembly
Surface treatment and finishing should be selected according to material, drawing requirements, application environment and assembly needs. Options may include anodizing, chemical conversion coating, plating, anti-oxidation treatment or other project-specific finishing methods.
For heat-pipe-integrated designs, BY Thermal can review heat pipe route, groove structure, contact areas and assembly requirements according to the customer drawing package.
- Anodizing and appearance finishing by project requirement
- Chemical conversion coating or plating where specified
- Heat pipe integration and assembly support
- Finishing method selected by material, drawing and environment
Quality Control
Inspection Based on Customer Drawings
Inspection should follow the customer drawing and agreed requirements. Common review points may include overall dimensions, mounting features, hole positions, contact surfaces, flatness where specified, appearance, surface treatment and assembly details.
Inspection reports can be discussed when required by the project and agreed before production.
Inspection points should be clearly defined in the drawing package before quotation and production.
Applications
Custom Heat Sinks for Industrial and Electronic Equipment
Custom heat sinks are used when standard parts cannot meet the mechanical layout, heat source position, material requirement or mounting structure of the application.
Project Workflow
From Drawing Review to Production
Drawing Review
Review 2D drawings, 3D models, material requirements and application conditions.
Manufacturability Assessment
Check whether the structure is suitable for skiving, extrusion, CNC machining or heat pipe integration.
Process Selection
Confirm the manufacturing route according to geometry, material, features and quantity.
Quotation
Prepare quotation based on drawings, process route, surface treatment, inspection and quantity.
Prototype
Support sample production according to the approved drawing and manufacturing requirements.
Inspection
Inspect critical features according to the drawing and agreed inspection requirements.
Production
Arrange production after drawing, sample and quotation requirements are confirmed.
Packaging
Pack custom heat sinks according to product structure and shipment requirements.
RFQ Information
What to Send for a Custom Heat Sink Quote
A clear drawing package helps BY Thermal review manufacturability and prepare a more accurate quotation.
FAQ
Frequently Asked Questions
What information is needed to quote a custom heat sink?
Please provide 2D drawings, 3D models, overall dimensions, material, fin structure, mounting features, contact-surface requirements, airflow condition if available, surface treatment and estimated quantities.
Can you manufacture according to an existing drawing?
Yes. BY Thermal manufactures custom heat sinks according to customer drawings and can review the drawing package for manufacturability before quotation.
How do I choose between skived and extruded heat sinks?
Skived heat sinks are suitable for certain high-density fin structures, while extruded heat sinks are based on aluminum profiles. The choice depends on material, geometry, quantity and manufacturing feasibility.
Can CNC machining be added after skiving or extrusion?
Yes. CNC secondary machining can be used for mounting holes, threads, grooves, pockets, steps, cutouts, locating features and contact surfaces.
Can heat pipes be integrated?
Yes. Heat pipes can be integrated with suitable skived, extruded or machined structures. The heat pipe route, groove design, contact method and working direction should be reviewed with the drawing.
Do you manufacture aluminum and copper heat sinks?
Yes. BY Thermal supports aluminum and copper heat sink structures according to customer drawings and project requirements.
Can you support prototypes and production quantities?
Yes. BY Thermal can support sample and production projects after the drawing, process route, quotation and inspection requirements are confirmed.
What surface treatments can be specified?
Surface treatment may include anodizing, chemical conversion coating, plating, anti-oxidation treatment or other project-specific finishing methods depending on material, drawing and environment.
Can inspection reports be provided?
Inspection reports can be discussed when required by the project and agreed before production. Inspection should follow the drawing and confirmed requirements.
What applications use custom heat sinks?
Custom heat sinks are used in power electronics, energy storage systems, inverters, converters, industrial control equipment, data center hardware, communication equipment, laser equipment and custom electronic systems.
Custom Project Review
Have a Custom Heat Sink Drawing?
Send your 2D/3D drawings, material requirements, heat source information and quantity. BY Thermal will review the custom heat sink structure and manufacturing route for quotation.
SKIVING PROCESS
Skiving is a precision manufacturing technique. Specifically, it creates high – density, thin fins on heat sinks by shaving material from a base metal (typically aluminum or copper). This process, in turn, ensures seamless fin integration. Thereby, it enhances thermal conductivity and dissipation efficiency. Skived fins are ideal for compact, high – performance applications like electronics cooling. For instance, they offer superior surface area and structural integrity compared to bonded or extruded alternatives.
EXTRUSION PROCESS
Extrusion is a versatile manufacturing method. Specifically, it shapes heat sink profiles by forcing molten metal (often aluminum) through a die under high pressure. As a result of this process, continuous, uniform fins with consistent thermal performance are produced. Naturally, it’s ideal for large – scale production. Moreover, extruded heat sinks offer cost – effectiveness and design flexibility. For example, they suit moderate thermal applications in electronics, automotive, and industrial systems. In doing so, they balance efficiency and economy.
CNC Machining PROCESS
CNC machining is a computer – controlled subtractive manufacturing method. Specifically, it creates heat sinks by precisely removing material from a solid block (aluminum, copper, or steel) via rotating tools. Notably, this process enables high accuracy and complex geometries. For instance, intricate fin arrays or customized shapes can be made, tailored for high – performance thermal solutions. Moreover, CNC machining suits prototyping and low – to – medium production runs well. It provides superior dimensional control and surface finish. Thus, it ensures optimal heat dissipation in demanding applications such as aerospace and high – power electronics.