Milled Heat Sinks
CNC milled heat sinks for prototypes and low-volume thermal components where extrusion tooling is not practical.
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24 Hours QuoteCNC Heat Sink Machining Services
CNC machining for heat sinks and thermal management components requiring fin control, flatness and surface finish planning.
- Thermal component machining
- Fin and flatness review
- Anodizing and marking support
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STEP / STP / IGES / IGS / X_T / SLDPRT / PDF / DWG / DXF
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Engineering review and quotation within 24 hours.
Heat Sink Machining for Custom Precision Parts
JADMAKE supports CNC heat sink projects for electronics, communication and industrial equipment. Engineering review focuses on fin geometry, base flatness, anodizing and inspection needs.
Capabilities
Heat Sink Machining Capabilities
Choose the machining strategy that matches part geometry, access, tolerance and production quantity.
Base Flatness Review
Base contact surfaces, datum references and mounting holes are reviewed for thermal interface requirements.
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Anodizing and Marking
Black anodizing, clear anodizing, laser marking and masking requirements can be reviewed with the drawing.
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Electronics and RF Parts
Heat sinks, enclosures and thermal plates for electronics, communication and RF equipment applications.
Learn MoreHeat Sink Machining Capabilities and Specifications
Available ProcessesCNC milling, drilling, tapping, deburring, anodizing, laser marking and inspection support
Typical MaterialsAluminum 6061, 6063, 6082, 7075 and drawing-specified thermal materials
Key FeaturesCooling fins, mounting holes, threaded inserts, base surfaces, pockets and interface faces
Standard ToleranceDrawing-based and reviewed against fin geometry, base flatness and inspection method
FlatnessConfirmed by drawing requirement, heat-transfer surface and inspection method
Prototype Quantity1-20 parts for thermal validation and engineering samples
Low-Volume Production20-500+ parts depending on geometry, finish and inspection requirements
Surface FinishAs-machined, bead blasted, clear anodized, black anodized or laser marked by requirement
Quality SystemISO 9001 process control with critical features reviewed by project
Supported FilesSTEP, STP, IGES, IGS, X_T, SLDPRT, PDF, DWG, DXF, ZIP
Heat Sink Machining Materials
Aluminum
Lightweight, corrosion resistant, machinable and suitable for cosmetic or functional finishing.
- Applications
- RF housings, heat sinks, brackets, covers, fixture plates and enclosures.
- Common Grades
- 6061, 7075, 5052, 2024
Stainless Steel
Corrosion resistant, durable and suitable for parts that need strength and stable surfaces.
- Applications
- Fixtures, brackets, covers, equipment components and industrial precision parts.
- Common Grades
- 304, 316, 17-4 PH
Carbon and Alloy Steel
Strength, wear resistance and optional heat treatment depending on grade and application.
- Applications
- Tooling plates, structural components, machinery parts and durable brackets.
- Common Grades
- 1045, 4140, 40Cr
Brass and Copper
Good conductivity, machinability and corrosion resistance for electrical and thermal uses.
- Applications
- Electrical parts, contacts, RF details, grounding parts and thermal components.
- Common Grades
- C360, H59, C110
Titanium
High strength-to-weight ratio and corrosion resistance, with higher machining cost and tool-wear risk.
- Applications
- High-performance prototypes, lightweight structures and demanding precision parts.
- Common Grades
- Ti-6Al-4V
Engineering Plastics
Lightweight, insulating, low-friction or chemical-resistant options with material-specific stability risks.
- Applications
- Jigs, housings, wear parts, test fixtures and functional prototypes.
- Common Grades
- POM, PEEK, Nylon, PC, ABS
Surface Finishing Options for Heat Sink Machining Parts
As Machined
Finish requirements can be reviewed with your material, tolerance and application needs.
Bead Blasting
Finish requirements can be reviewed with your material, tolerance and application needs.
Anodizing
Finish requirements can be reviewed with your material, tolerance and application needs.
Hard Anodizing
Finish requirements can be reviewed with your material, tolerance and application needs.
Powder Coating
Finish requirements can be reviewed with your material, tolerance and application needs.
Painting
Finish requirements can be reviewed with your material, tolerance and application needs.
Electroless Nickel Plating
Finish requirements can be reviewed with your material, tolerance and application needs.
Zinc Plating
Finish requirements can be reviewed with your material, tolerance and application needs.
Passivation
Finish requirements can be reviewed with your material, tolerance and application needs.
Polishing
Finish requirements can be reviewed with your material, tolerance and application needs.
Black Oxide
Finish requirements can be reviewed with your material, tolerance and application needs.
Laser Marking
Finish requirements can be reviewed with your material, tolerance and application needs.
Why Choose JADMAKE
Engineering Review Before Production
CAD files, drawings, material, tolerance and finishing requirements are reviewed before machining starts.
Consistent Quality Control
ISO 9001 process control and inspection checkpoints help manage dimensions, appearance and batch repeatability.
Direct Factory Communication
Project requirements are discussed with the team responsible for engineering review and production planning.
Flexible Production Volumes
Support for prototypes, engineering samples and repeat low-volume orders.
Complete Manufacturing Support
Machining, finishing, inspection, packaging and delivery are coordinated together.
Quality Control for Heat Sink Machining Parts
Inspection reports, material certificates and surface treatment certificates can be provided according to project requirements.
Drawing ReviewMaterial VerificationFirst Article InspectionIn-Process InspectionFinal Dimensional InspectionSurface and Appearance InspectionPackaging and Shipment
CMMHeight GaugeProjectorMicrometerRoughness TesterPlug GaugesRing Gauges
Heat Sink Machining Parts We Manufacture
Aluminum Housings
- Material: Aluminum
- Process: CNC Milling
- Finish: Anodizing
- Tolerance: Project dependent
Heat Sinks
- Material: Aluminum
- Process: CNC Milling
- Finish: Black Anodizing
- Tolerance: Project dependent
Precision Brackets
- Material: Aluminum / Steel
- Process: 3+2 Axis Milling
- Finish: As Machined
- Tolerance: Project dependent
Robotics Components
- Material: Aluminum / Steel
- Process: CNC Milling
- Finish: Painting
- Tolerance: Project dependent
Communication Enclosures
- Material: Aluminum
- Process: CNC Milling
- Finish: Anodizing
- Tolerance: Project dependent
SATCOM Components
- Material: Aluminum / Alloy Steel
- Process: 5-Axis Milling
- Finish: Black Oxide
- Tolerance: Project dependent
Optical Mounts
- Material: Aluminum / Stainless Steel
- Process: CNC Milling
- Finish: Passivation
- Tolerance: Project dependent
Automation Fixtures
- Material: Aluminum / Steel
- Process: CNC Milling
- Finish: Hard Anodizing
- Tolerance: Project dependent
Medical Device Components
- Material: Stainless Steel / Plastic
- Process: CNC Milling
- Finish: Polishing
- Tolerance: Project dependent
Aerospace Structural Parts
- Material: Aluminum / Titanium
- Process: 5-Axis Milling
- Finish: As Machined
- Tolerance: Project dependent
Heat Sink Machining Services for Different Industries
Robotics
Structural brackets, actuator parts, sensor mounts and precision housings.
Communication and SATCOM
RF housings, antenna structures, terminal brackets and shielding components.
Industrial Automation
Fixtures, machine components, mounting plates and custom tooling.
Electronics
Heat sinks, enclosures, connectors, plates and shielding parts.
Medical Equipment
Prototype components, device housings, fixtures and precision metal parts where requirements are confirmed by drawing.
Aerospace
Engineering prototypes, lightweight structures and precision components with project-specific documentation requirements reviewed before quotation.
Prototype to Low-Volume Production
1-20 Parts
Suitable for design validation, functional testing, engineering samples and early project review.
20-500+ Parts
Suitable for bridge production, repeated small-batch orders and controlled production ramp-up.
Heat Sink Machining Design Guidelines
Fin GeometryVery thin or tall fins may increase machining time, vibration risk and burr control requirements.
Base ThicknessBase thickness should support both thermal performance and machining stability.
FlatnessDefine flatness only on heat-transfer surfaces where assembly function requires it.
Mounting HolesSpecify thread depth, insert requirements, countersinks and datum relationships clearly.
AnodizingMark masked surfaces and critical dimensions because anodizing can affect fit and appearance.
Burr ControlFin edges and slots should include realistic deburring expectations.
MaterialAluminum is common for heat sinks, but grade selection should match thermal, strength and finishing needs.
InspectionCritical base surfaces, hole positions and cosmetic faces should be called out on the drawing.
FAQ
Can CNC machining be used for heat sinks?
Yes. CNC machining is useful for prototype and low-volume heat sinks, custom thermal plates, complex mounting features and parts that do not justify extrusion tooling.
Which aluminum is common for CNC machined heat sinks?
Common choices include 6061, 6063 and 6082 aluminum, but final material should be selected by thermal, strength, finish and purchasing requirements.
Can JADMAKE make black anodized heat sinks?
Black anodizing can be reviewed for aluminum heat sink projects together with masking, cosmetic requirements and tolerance impact.
What should I include in a heat sink RFQ?
Send CAD files, 2D drawings, material grade, quantity, surface finish, base flatness, critical dimensions, thermal interface notes and inspection requirements.
How are heat sink fins reviewed?
Fin height, thickness, spacing, tool access, burr control and surface finish are reviewed before quotation.
Can heat sinks be made in small batches?
Yes. Prototype and low-volume heat sink projects can be reviewed based on geometry, material, finish and inspection needs.
Ready to Start Your Heat Sink Machining Project?
Upload your drawings and CAD files. Our engineering team will review your project and provide a quotation with machining recommendations.
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