Precision Aluminum CNC Milling Services
CNCALPARTS is a Shenzhen-based manufacturer focused exclusively on CNC milling and turning for aluminum alloys. By dedicating our facility, tooling, and engineering expertise solely to aluminum, we deliver superior dimensional accuracy, surface finish control, and deformation management for complex components.
We support engineers and procurement teams in robotics, automation, optics, and industrial equipment — turning 3D models into high-quality aluminum parts from prototype to production.
Specialized Aluminum Milling Capabilities
Aluminum requires specific machining parameters to manage heat, stress, and chip evacuation. Our facility is optimized for the unique characteristics of aluminum grades like 6061, 7075, 6082, and 5052.
Multi-Axis Milling
3-axis, 4-axis, and 5-axis CNC milling for complex geometries, deep pockets, and multi-sided features.
Precision Tolerances
Standard tolerances of ±0.05 mm, with precision capabilities down to ±0.01 mm for critical fits.
Thin-Wall & Complex Parts
Specialized workholding and machining strategies to minimize vibration and distortion in thin-wall enclosures and structural frames.
High-Volume & Prototyping
Scalable production workflows from 1-piece prototypes for design verification to 500+ unit production runs.
Technical Specifications
Our aluminum-only platform is configured around the dimensions, geometries, and finishes that aluminum components demand.
| Feature | Capability |
|---|---|
| Max Milling Size | 1000 × 600 × 500 mm |
| Material Focus | Aluminum Only (6061, 7075, 5083, etc.) |
| Surface Roughness | Ra 0.8–3.2 μm |
| Min. Wall Thickness | 0.5 mm |
| Min. Hole Diameter | Ø1.0 mm |
| Tolerances | Down to ±0.01 mm |
Why We Only Machine Aluminum
General-purpose machine shops often switch between steel, plastics, and various alloys, which leads to cross-contamination and inconsistent tooling performance. At CNCALPARTS, our equipment and processes are calibrated specifically for aluminum.
Thermal Expansion
Managing heat during high-speed milling to maintain strict tolerances.
Stress Relief
Using specific techniques to prevent warping in large-format plates and housings after material removal.
Anodizing Preparation
Ensuring surface finishes are optimized for clear, black, or hard-coat anodizing, preventing cosmetic defects before they occur.
Common Components We Manufacture
We machine a wide variety of aluminum parts designed for demanding industrial applications.
- Enclosures & Housings
- Precision-milled electronic enclosures with integrated heat dissipation features.
- Robotics & Automation
- Structural brackets, frames, and custom linkages requiring high strength-to-weight ratios.
- Optical & Industrial Equipment
- Manifolds, mounting plates, and precision housings with tight flatness and parallelism requirements.
- Heat Sinks
- Complex fin geometries and cooling plates requiring high surface area control.
Surface Finishing & Post-Processing
A component is only as good as its finish. We provide a full range of surface treatments to meet both aesthetic and functional requirements.
As-Machined
Clean, high-quality finishes direct from the mill.
Bead Blasting
Uniform matte textures to hide machining marks.
Anodizing
Standard (clear, black, color) and hard anodizing for increased wear resistance and corrosion protection.
Chemical Film / Chromate
For conductive grounding or base-layer adhesion.
Quality Assurance & Inspection
Quality is documented, not assumed. Before production, our engineering team reviews your drawings and 3D models to identify potential manufacturing bottlenecks.
During and after production, we verify every critical dimension and provide Dimensional Inspection Reports and First Article Reports to ensure every part conforms to your engineering specifications.
Inspection Equipment
CMMs, height gauges, micrometer sets, and surface roughness testers.
Documentation
Dimensional Inspection Reports and First Article Reports for every critical dimension.
Pre-Production Review
DFM review of drawings and 3D models to flag manufacturing bottlenecks early.
Conformance
Every part verified against your engineering specifications before shipment.
Partnering with CNCALPARTS
We work best with organizations that require consistent, high-quality aluminum components on a recurring basis. Whether you are scaling from a prototype or moving an existing project to a more specialized manufacturing partner, we provide the technical communication and production stability your project requires.
We do not machine steel, stainless steel, or plastics. By focusing exclusively on aluminum, we deliver the expertise and efficiency your project demands.
We Machine Aluminum. Only Aluminum.
Ready to start your next project?
Send your STEP/STP files and PDF drawings for a prompt review and quotation. Tell us about your material grade, tolerances, and finishing requirements.
- Aluminum-only milling and turning
- 3-axis, 4-axis, and 5-axis capability
- Prototype to 500+ unit production runs
- Anodizing and full post-processing support