Precision Aluminum CNC Machining & Black Anodizing Services
CNCALPARTS specializes exclusively in aluminum CNC machining. By focusing solely on aluminum, we have optimized our workflows for the specific challenges of this material—including deformation control, tight-tolerance machining, and consistent surface finishing.
For projects requiring a durable, aesthetic, and professional finish, we provide in-house expertise in black anodizing for custom aluminum housings, enclosures, and high-precision components.
Specialized Black Anodizing Capabilities
Black anodizing is more than a color change; it is a critical surface treatment that impacts dimensional accuracy and part performance. Our process is calibrated for the specific aluminum alloys we machine, including 6061, 7075, and 5052.
Type II Anodizing
Standard sulfuric acid anodizing creates a protective, corrosion-resistant oxide layer with a deep, uniform black appearance.
Bead Blasting Preparation
To achieve a uniform, non-reflective matte black finish, we bead blast prior to anodizing. This hides minor machining marks and delivers a consistent, premium aesthetic.
Dimensional Control
We account for the thin oxide buildup during the machining phase. If your design requires specific tolerances after coating, we adjust CNC tool offsets to ensure the final part meets your exact specifications.
Color Consistency
Through strictly controlled bath chemistry and process timing, we ensure batch-to-batch color stability—essential for multi-component assemblies like electronics housings and optical frames.
Why Choose Us for Black Anodized Aluminum Parts?
Generalist machine shops often treat finishing as an afterthought. At CNCALPARTS, we manage the entire lifecycle of your part—from material selection and stress-relieving during machining to the final anodized finish.
Aluminum-Only Focus
We do not machine steel, titanium, or plastics. We machine aluminum, and we do it with a level of precision that general shops cannot match.
Industry Applications
Optical Equipment
Matte black surfaces to minimize light reflection and stray glare.
Robotics & Automation
Durable, wear-resistant coatings for structural brackets and housings.
Electronics
Precision-fit enclosures that require both thermal conductivity and a professional, high-end appearance.
Industrial Components
Corrosion-resistant parts for long-term deployment in varied environments.
Technical Specifications & Tolerances
We bridge the gap between complex CNC machining and surface finishing.
| Feature | Capability |
|---|---|
| Machining Tolerance | Down to ±0.01 mm |
| Surface Roughness | Ra 0.8–3.2 μm |
| Anodizing Type | Type II (Clear, Black, Color) |
| Material Focus | 6061, 6063, 6082, 7075, 2024, 5052, 5083 |
| Max Milling Size | 1000 × 600 × 500 mm |
| Inspection | CMM, Surface Roughness Tester, Dimensional Reporting |
From Prototype to Production
Whether you need a single prototype for design validation or a production run of 500+ units, our process remains consistent. We review your 3D models (STEP, SLDPRT, X_T) and technical drawings to identify potential issues—such as deep holes or thin walls—before production begins.
This upfront engineering review ensures your parts are ready for a high-quality black anodized finish, with no surprises at the coating stage.
- Design-for-manufacturing review on every quote
- Consistent quality from single units to 500+ production runs
- In-house control of machining and black anodizing
Partner with CNCALPARTS
We do not machine steel, titanium, or plastics. We machine aluminum, and we do it with a level of precision that general shops cannot match. By keeping our focus narrow, we provide better engineering support, faster response times, and more stable quality for your aluminum projects.
Upload your 3D models and PDF drawings to request a quote. Our team will review your specifications and provide a detailed analysis of your machining and finishing requirements.
Email: info@cncalparts.com
Address:
CNCALPARTS — Precision Aluminum CNC Machining Specialists.