Aerospace CNC Machining
Precision CNC machined aerospace components — structural brackets, housings, manifolds, fittings, and fixtures — machined to tight tolerances with full material traceability and CMM inspection reporting. ISO 9001:2015 certified. Shenzhen, China.
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We Help From Prototyping to Production
From the first rough cut to high-volume production, our integrated facility and documented quality system ensure sub-millimeter accuracy and engineering integrity at every stage of your aerospace program.
Prototyping
Aerospace prototype parts machined from production-grade titanium, aluminum, and stainless steel alloys. Prototypes are produced to the same dimensional tolerances as production parts, giving your engineering team accurate performance data from the first article.
Engineering Validation and Testing
Precision-machined components for engineering validation programs where dimensional accuracy, material certification, and surface condition must match the production specification. Inspection reports and material certifications provided for every validation batch.
Production Validation and Testing
First article inspection and production validation parts produced to your approved drawing with full dimensional inspection, CMM measurement reports, and material traceability documentation confirming alloy specification and heat treatment condition.
Mass Production
Scalable aerospace machining from low-volume bridge production through to sustained production programs. Consistent quality maintained across batches through documented process controls, tool life management, and in-process inspection at defined intervals.
Applications of Aerospace Parts
Top Proto produces precision-machined components for a broad range of aerospace applications, covering commercial aviation, defence, satellite systems, and unmanned aerial vehicles. Our machining capability supports the following aerospace component types:
- Gas and liquid flow components including valve bodies, manifolds, and fluid routing blocks
- Fuel nozzles and fuel system components requiring tight bore tolerances and clean internal passages
- Fit check gauges and dimensional reference tooling for airframe assembly programs
- Turbo pump housings, impellers, and manifold assemblies for propulsion systems
- Conformal cooling channels in thermal management components for avionics and power electronics
- Custom fixturing, jigs, and assembly aids for aircraft manufacturing programs
- Heat exchangers and thermal management components in aluminum and stainless steel
- Rapid tooling, brackets, chassis, and structural jigs for aerospace test and assembly programs
- Actuation system components including brackets, clevises, and precision-bored housings
- Avionics enclosures and EMI shielding housings in machined aluminum alloy
Our Services
Top Proto provides a full range of manufacturing processes for aerospace component production, with each process selected and controlled to meet the dimensional and material requirements of flight-critical and ground-support aerospace applications.
5-axis simultaneous machining produces complex aerospace components with compound angles, undercuts, and curved surfaces, reducing setups while ensuring high precision and positional accuracy.
3-axis and 5-axis milling for aerospace structural panels, brackets, housings, and instrumentation components in aluminum, titanium, stainless steel, and Inconel.
Precision turning manufactures aerospace cylindrical components such as shafts, bushings, flanges, and actuator parts. Advanced high-speed CNC lathes with live tooling combine turning and milling.
Comprehensive CNC machining services for aerospace prototypes and production parts, including milling, turning, and multi-axis machining, with full quality documentation and material traceability.
Additive manufacturing for aerospace design validation models, non-structural mockups, tooling aids, and complex duct geometries that benefit from additive production methods.
Fiber laser cutting of aerospace sheet metal panels, heat shield blanks, and bracket profiles in aluminum, stainless steel, and titanium sheet stock.
Low-volume casting of aerospace ground support and interior components in polyurethane resins simulating structural plastic materials.
Production of aerospace interior and ground support plastic components in engineering-grade and flame-retardant resins from qualified injection mold tooling.
Why Aerospace Engineers Specify TOP PROTO
Aerospace programs require more than machining capability — they require a manufacturing partner with documented quality systems, material traceability, and dimensional inspection processes aligned with aerospace certification requirements. Here is how Top Proto specifically supports aerospace manufacturing programs:
The documentation is built into the process — not assembled at the end.
CMM inspection, material certs, finish records — these aren't generated at dispatch. Material is verified before cutting starts. Inspection is built into the sequence. The documentation is the natural output of a controlled process, not a report written afterwards to close the job.
Heat number traceability — not just "material cert available.
The mill cert is on file before cutting starts. Each part is traceable to the stock it came from. That's not a documentation option — it's how the job is planned. If a material question arises two years after delivery, we can answer it from the file.
5-axis capability, honestly described.
Compound-angle brackets, multi-face fittings, complex ported manifolds — geometry that requires simultaneous 5-axis motion or carefully planned 3+2 repositioning. We machine both and quote them differently, because the achievable tolerances on each surface are different. We tell you which approach applies to your part before you confirm.
Finishing planned into the manufacturing sequence.
Anodizing thickness affects bolt hole clearances. Masking decisions affect coverage. Pre-coat surface condition affects adhesion. We plan finishing at quote stage — masking confirmed from the drawing before the part enters finishing, process documented, coated features re-checked after.
Materials and Surface Finishes for Aerospace Parts
Materials
Top Proto machines aerospace-grade materials including Titanium Grade 5 (Ti6Al4V) for high strength-to-weight structural applications, Aluminum 7075-T6 for airframe and structural components, Aluminum 6061-T6 for general aerospace housings and brackets, Stainless Steel 316L for corrosion-critical fluid system components, Inconel 718 for high-temperature engine and exhaust components, and PEEK for lightweight aerospace polymer components requiring chemical and thermal resistance.
Surface Finishes
Aerospace surface treatments applied at Top Proto include clear and hard anodizing (Type II and III) for aluminum structural parts, chemical film (Alodine / Chem Film) for corrosion protection on aluminum components requiring electrical conductivity, passivation for stainless steel fluid system components, bead blasting for uniform surface texture before coating, and DLC coating for wear-critical precision sliding surfaces.
Manufacture Through Latest Technology
Advanced Injection Speed Control
Selective Laser Sintering
Multi-Spindle Lathes
End To End Solutions
Rapid Prototyping
Rapid Prototyping
With our CNC machining service, bringing your ideas is a thing of the past. We create prototypes with the functionality or you to improve your ideas with minimal to no impact on production.
Low Volume Production
Low Volume Production
High-quality production of machined parts is possible without the need for high volumes of parts. Our low-volume production service is tailored with high-volume flexibility to suit your early-stage product needs.
End-to-End Solutions
End-to-End Solutions
Your entire production workflow is managed by us from start to finish. Scheduled delivery is guaranteed for all projects regardless of complexity.
How We Works – 3-Stages Workflow
We guarantee that CNC parts are delivered on time and that the process is completely transparent in the following 3 simple steps:
Upload Your Files
Instant prices with DFM feedback for many file types.
We Manufacture Your Parts
You can select from many materials and methods.
Tracking and Receiving Your Parts
View the QC documentation and inspection photographs.
Frequently asked questions
What certifications do you hold for aerospace CNC machining?
ISO 9001:2015 certified. Our QMS covers material traceability, in-process inspection, CMM final inspection, non-conformance control, and documentation. We don’t currently hold AS9100D certification — if your programme requires AS9100D from a supplier, confirm at RFQ stage and we’ll discuss which quality plan requirements we can meet. For many aerospace development and prototype programmes, ISO 9001:2015 with full material traceability and CMM reporting satisfies the quality requirement. We’ll tell you honestly if it doesn’t fit your specific requirement.
Can you provide full material traceability for aerospace parts?
Yes, as standard. Every material is verified against a mill certificate before cutting starts — alloy grade, temper, heat number, chemical and mechanical properties. Each finished part is traceable to the stock cert. For multi-part orders, individual part-to-cert traceability is maintained throughout. Material certs ship with every order. No additional charge.
What does your CMM inspection report cover?
Every feature called out on the drawing — dimensional and geometric. Nominal value, tolerance, measured actual, pass/fail. True position, perpendicularity, flatness, concentricity, and profile are reported where called out on the drawing. The report is issued against your drawing revision and part number. For first articles, we prepare a full FAI package: ballooned drawing plus dimensional report, material cert, and finish process record.
How do you handle anodizing on aerospace parts with tight-tolerance features?
Anodizing is planned at quote stage for any part with tight-tolerance bores, shaft diameters, or sealing faces. We identify every feature where coating thickness will affect mating dimensions, agree the approach (pre-machine with offset, mask, or post-coat machine), and confirm the masking plan from the drawing before finishing starts. Masked features are re-measured after coating. The process record documents what was masked, what was coated, and the coating thickness on coated surfaces.
Can you machine titanium for aerospace applications?
Yes. Titanium Grade 5 (Ti-6Al-4V) and Grade 2 are machined regularly. Titanium requires specific tooling strategy — lower cutting speeds than aluminium, aggressive coolant, sharp tooling changed at defined intervals, and careful chip management. It’s slower and the material cost is significantly higher, both reflected in the quote. For titanium aerospace parts we review the drawing at quote stage for features that affect machining decisions: deep pockets, thin walls, cross-drilled bores, and tolerance interactions.
What's the lead time for aerospace CNC machined parts?
From 5 business days for standard complexity parts in aluminium. Titanium and complex 5-axis geometry typically add time — 7–10 business days depending on the part. First article orders with FAI documentation add 1–2 days for the inspection package. Rush lead times are available on some orders — flag it in the RFQ if timeline is critical and we’ll confirm before you commit.
CNC Manufacturing Resources
Technical guides and process comparisons from the Top Proto engineering team, covering material selection, process decision frameworks, and manufacturing design principles for engineers and product developers.
January 30, 2026
January 30, 2026