4-Axis CNC Machining for Custom Aluminum Components
At CNCALPARTS, we specialize exclusively in aluminum CNC machining. Rotary indexing lets us machine multiple faces in one setup, helping deliver tighter dimensional control, shorter lead times, and efficient production for complex components.
±0.01 mm
Precision tolerance
1000 mm
Maximum milling length
1–500+
Prototype to production
Single-setup advantage
Rotary indexing reaches multiple faces while reducing repeat clamping and alignment risk.
Precision 4-axis capability
More features, fewer setups
A rotary axis rotates the workpiece so the cutting tool can access side faces without repositioning. This is especially valuable for housings, manifolds, brackets, robotic joints, optical mounts, and other multi-sided aluminum parts.
Improved accuracy
Fewer setups reduce clamping errors and misalignment between features on different planes.
Complex feature integration
Machine radial holes, slots, grooves, threads, and contours across cylindrical or multi-sided components.
Reduced cycle times
Less manual handling helps maintain consistent production speeds for low-to-medium volume batches.
Repeatable orientation
Consistent rotary positioning supports repeat production for robotic joints, optical mounts, and precision assemblies.
Built around aluminum
Process control for demanding alloys
Aluminum requires careful control of heat, cutting forces, and internal stress. Our focused approach lets us optimize workholding, tooling, spindle speeds, feeds, and tool paths for thin-walled and multi-face components.
Deformation control
Optimized workholding and aluminum-specific tool paths help manage internal stress in thin-walled enclosures and plates.
Multi-side positional accuracy
Holes, pockets, and threads across multiple faces can be held within ±0.02 mm for demanding assemblies.
Machined surface finish
Aluminum-specific cutting parameters support Ra 0.8–3.2 μm directly from the machine, reducing secondary processing.
Material focus
Aluminum alloys only
Our specialization supports consistent tooling management and process knowledge across your aluminum component program.
Typical positional accuracy
Down to ±0.01 mm
Technical specifications
Capacity aligned to your project
From one-off prototypes to repeat production, our aluminum-focused process is configured for precision and consistency.
| Capability | Typical range |
|---|---|
| Materials | Aluminum alloys only: 6061, 6063, 6082, 7075, 2024, 5052, 5083 |
| Machining axes | 3-axis, 4-axis, and 5-axis |
| Maximum milling size | 1000 × 600 × 500 mm |
| Precision tolerance | Down to ±0.01 mm |
| Hole and feature tolerance | Down to ±0.01 mm |
| Flatness and parallelism | Down to 0.02 mm |
| Surface roughness | Ra 0.8–3.2 μm |
| Prototype quantity | 1–10 pieces |
| Production quantity | 10–500+ pieces |
Typical applications
Designed for multi-face components
4-axis aluminum machining is a practical fit when radial features, side-wall access, and consistent feature orientation matter.
Housings and enclosures
Complex geometries with side-wall holes, pockets, and mounting details.
Heat sinks
Precisely machined cooling fins and reliable mounting interfaces.
Brackets and frames
Structural parts requiring accurate alignment across multiple faces.
Manifolds
Precision-drilled ports and internal fluid paths on compact blocks.
Optical mounts
Components requiring high perpendicularity and positional accuracy.
Precision hybrid parts
Turned and milled geometries that benefit from rotation and milling access.
Quality and finishing
Verified parts, ready for assembly
Every part is measured against your technical drawings and 3D models. Inspection documentation is available when your project requires formal validation.
CMM inspection
Complex 3D feature verification.
Precision gauging
Micrometers, bore, height, and thread gauges.
Surface analysis
Roughness testing for finish requirements.
Project documentation
Dimensional Inspection Reports and FAR on request.
Aluminum finishing options
As machined
Clean, high-quality surface directly from the mill.
Bead blasting
Uniform matte cosmetic finish.
Anodizing
Clear, black, color, and hard anodizing for wear and corrosion protection.
Brushing and polishing
Finishes tailored to your aesthetic requirements.
Powder coating
Durable protective layering for industrial environments.
A focused manufacturing partner
From prototype to batch production
We do not machine steel, brass, or plastics. We specialize in aluminum, enabling better tooling management, stronger deformation control, and consistent quality for 4-axis machining projects.
Discuss your componentWhat to send for a fast quotation
- 1
STEP or STP files
Share the 3D geometry for accurate manufacturability review.
- 2
Technical drawings
Include tolerances, finishes, materials, and inspection requirements.
- 3
Quantity and timing
Tell us whether the project is a prototype or production batch.
Start your project
Ready to machine your aluminum component?
Send your STEP/STP files and technical drawings for a prompt quotation from CNCALPARTS, your aluminum CNC machining specialist.
Company: CNCALPARTS
Email: info@cncalparts.com
Address:
Request a quotation
Tell us about your part, quantity, and target requirements.