Custom CNC Machined Aluminum Enclosure with Black Anodized Finish and ±0.005mm Tolerance

Precision CNC machining | Custom aluminum housing | Black anodized finish | Prototype to production

This custom CNC-machined aluminum housing is manufactured from aluminum using precision CNC milling to create complex external profiles, recessed pockets, openings, mounting features, and internal cavities.

The component is finished with a black anodized surface treatment, providing a clean, professional appearance while improving surface protection and corrosion resistance. Black anodizing is commonly used on CNC-machined aluminum components where both functional performance and visual appearance are important.

The housing shown is an example of JYH Precision Machining's ability to manufacture complex aluminum enclosures and mechanical housings directly from customer drawings, 3D CAD models or engineering specifications.

Whether you need a single prototype, a small production batch or repeat production, the geometry, material, tolerance, surface finish and inspection requirements can be customized according to your application.

A CNC machined aluminum housing is often used to protect, support or integrate internal components while maintaining precise interfaces with other mechanical or electronic assemblies.

Unlike fabricated sheet-metal enclosures, a CNC machined housing can be produced from solid aluminum material with precisely machined pockets, steps, slots, threaded holes, mounting surfaces and other complex geometries.

This makes CNC machining particularly suitable for applications where dimensional accuracy, structural rigidity, appearance and repeatability are important.

• Precision CNC machined aluminum construction
• Complex pockets and recessed features
• Custom openings and mounting interfaces
• Precision-machined mating surfaces
• Black anodized surface finish
• Custom dimensions according to customer drawings
• Suitable for prototypes and production quantities
• Multi-axis CNC machining available
• Custom surface finishing options
• Dimensional inspection available
• CAD/CAM-based manufacturing
• DFM review available before production

The geometry of this housing contains multiple machining features that require controlled tool access and careful workholding.

Depending on the design, CNC milling can be used to produce:

• Deep recessed pockets
• Internal cavities
• Stepped surfaces
• Mounting interfaces
• Precision openings
• Threaded holes
• Counterbores
• Countersinks
• Locating features
• Flat mating surfaces
• External profiles
• Custom mechanical interfaces

For complex geometries, multi-axis CNC machining can reduce the number of setups required and help maintain positional relationships between different features.

JYH can review the customer's CAD model and drawing before production to identify potential machining challenges, tolerance issues, tool-access limitations and finishing considerations.

The black finish shown on this housing is produced through aluminum anodizing.

Anodizing creates an aluminum oxide layer on the surface rather than simply applying conventional paint. Type II anodizing is commonly selected for appearance and general surface protection, while Type III hard anodizing is generally selected when increased wear resistance and a harder surface are required.

For precision components, the anodizing process should be considered during machining because the anodized layer affects finished dimensions. Critical holes, threads, bores and mating surfaces may require appropriate dimensional compensation before finishing.

The exact aluminum alloy can be selected according to the application's requirements.

Depending on the project, JYH can also evaluate:

• 6063 aluminum
• 2024 aluminum
• Stainless steel
• Brass
• Copper
• Titanium
• Engineering plastics
• Other customer-specified materials

This product is not a standard off-the-shelf enclosure.

The housing can be manufactured according to your:

• 2D engineering drawing
• 3D CAD model
• STEP file
• IGES file
• DXF/DWG drawing
• Prototype sample
• Technical specification

Dimensions, wall thickness, holes, pockets, mounting points, threads, surface finish and other features can be customized for your application.

This makes CNC machining suitable for companies developing new products where standard aluminum enclosures cannot provide the required geometry or dimensional accuracy.

Custom CNC machined aluminum housings can be used across many industries and product categories, including:

A typical production workflow for a custom aluminum housing includes:

For low-volume and engineering applications, CNC machining can eliminate the need for dedicated production tooling and allows design changes to be implemented relatively quickly.

For higher production volumes, JYH can also evaluate alternative manufacturing processes such as die casting, injection molding or sheet metal fabrication where appropriate.

For precision CNC machined aluminum housings, dimensional control is particularly important around mating surfaces, mounting interfaces, holes, threads and internal cavities.

Depending on project requirements, inspection can include:

• Dimensional inspection
• CMM measurement
• Critical-dimension inspection
• Thread inspection
• Visual inspection
• Surface-finish inspection
• Anodizing appearance inspection
• First Article Inspection (FAI)
• Certificate of Conformance (CoC)
• Inspection reports

Inspection requirements can be defined according to the customer's drawing and quality specification.

JYH Precision Machining supports custom manufacturing projects from prototype development through production.

To provide an accurate quotation, please send:

1. 3D CAD model -- STEP/STP preferred
2. 2D engineering drawing -- PDF
3. Material specification
4. Surface finish requirement
5. Required quantity
6. Critical tolerances
7. Inspection requirements
8. Target delivery schedule, if applicable

Send your drawings and our engineering team can review the design and provide DFM feedback and a manufacturing quotation.

The housing can be customized according to the application, including: