Precision CNC Machining
Tight-Tolerance CNC Milling
AXALLOY Precision provides tight-tolerance CNC milling for complex, high-value components—especially in difficult-to-machine alloys. Based in Shenzhen, we support international engineering, procurement, and quality teams from prototype development through low-volume and repeat production, with process control, documentation, and dependable communication.
What "Tight-Tolerance" Means at AXALLOY
We build machining and inspection plans around your critical features, GD&T, surface requirements, and production intent.
±0.005 mm
Precision Dimensional Tolerance
0.010 mm
Position Tolerance
Ra 0.8 μm
Precision Surface Finish
0.5 mm
Minimum Wall Thickness
0.005 mm
Flatness
Ø0.5 mm
Minimum Hole Diameter
R0.3 mm
Internal Corner Radius
Ra 0.2 μm
Ground Finish Capability
If your drawing requirements are tighter or feature-specific, we review feasibility and propose a controlled route (machining + inspection + any needed special processes).
Multi-Axis CNC Milling Capability
We select the most stable setup strategy to reduce cumulative error, protect feature relationships, and improve repeatability.
Machine Capability
- Machining types3-axis, 4-axis, 5-axis
- Max 3-axis part1,000 × 600 × 600 mm
- Max 4-axis partØ500 × 800 mm
- Max 5-axis partØ500 × 400 mm
- Positioning accuracy±0.005 mm
- Repeatability±0.003 mm
- Spindle speedUp to 20,000 rpm
- Spindle taperBT40 / HSK-A63
- Tool magazineUp to 60 tools
Supported operations: facing, contouring, pocketing, drilling, tapping, boring, thread milling
Common Tight-Tolerance Milled Part Types
- Housings and structural components
- Manifolds and fluid blocks
- Impellers, blades, and complex 3D surfaces
- Brackets, plates, and thin-wall geometries
- Precision interfaces, datums, and locating features
Engineering Support
Tight tolerances are not only about machine capability—they're about the process plan. We support:
- • Drawing review and DFM feedback
- • GD&T and tolerance stack considerations
- • Critical feature identification and datum strategy alignment
- • Fixture concept planning to protect part stability
- • Manufacturing-process development for repeat builds
Materials We Mill for Tight Tolerances
AXALLOY specializes in alloys where tool wear, heat, work-hardening, and distortion can threaten tolerances.
Nickel Alloys
Inconel 718/625 (plus 600/601/690/706/725/X-750), Waspaloy, Nimonic, Rene alloys
Hastelloy
C-276, C-22, B-2
Monel
400, K-500
Titanium
Grade 2, 5, 9, 12, 23
PH Stainless
17-4 PH, 15-5 PH
Stainless
316L, 304, 321, 410/420/440C
Duplex / Super Duplex
2205, 2507
Cobalt Alloys
MP35N, L605, Stellite, Cobalt Chrome
High-Temp Steels & Specialty Metals
A286, Nitronic 50/60, Nitinol, molybdenum, tungsten, copper-nickel alloys
Special Processes to Protect Function and Compliance
When required, we coordinate controlled secondary operations and finishing steps:
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EDM (wire and sinker) for sharp internal features, deep cavities, and narrow slots
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Precision grinding for sealing surfaces and ultra-fine finishes (down to ±0.002 mm / Ra 0.2 μm)
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Heat treatment support, passivation, coating
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Deburring, marking, cleaning, and assembly support
Inspection, Traceability & Documentation
For tight-tolerance CNC milling, inspection strategy is defined early to match your critical characteristics and reporting expectations.
Inspection Capability
- • CMM range: 700 × 1,000 × 600 mm
- • CMM accuracy: up to 1.8 + L/300 μm
- • Optical measurement accuracy: ±0.002 mm
- • Surface roughness: Ra 0.05–40 μm
- • Hardness testing: Rockwell / Brinell / Vickers
- • Temperature-controlled inspection room
- • FAI, in-process, and final inspection
Documentation Available
- • Material Test Report / Mill Test Certificate
- • Certificate of Conformance (CoC)
- • FAI report, ballooned drawing report
- • Full dimensional inspection report
- • Surface roughness report
- • Heat treatment and coating certificates
- • Material and lot traceability
- • Custom documentation packages
Production Quantities and Lead Times
We support both engineering iterations and controlled repeat programs.
MOQ
1 part
Prototype Quantity
1–20 parts
5–10 business days typical
Low-Volume Production
20–500 parts
Batch Production
500–10,000+ parts
Standard Lead Time
10–20 days
Expedited service available
Best-Fit Applications
AXALLOY is a strong fit when you value manufacturability, process control, and documented quality—not just lowest unit price.
Common Industries
Best-Fit Project Traits
- Complex geometry, thin walls, critical interfaces
- Tight GD&T controls, demanding surface finish requirements
- Difficult holes/threads and multi-axis features
- High-value prototypes, low-volume/high-mix production
- Programs transferred from an unreliable supplier
- Requirements for certification, FAI, dimensional reporting, or export-ready packaging
RFQ Checklist
To quote tight-tolerance CNC milling accurately, please include:
- 1.2D drawing (PDF/DWG/DXF) with GD&T and critical features marked
- 2.3D model (STEP/STP/IGES/X_T/SLDPRT/SAT)
- 3.Material grade and any approved substitutions
- 4.Quantity (prototype and forecast if applicable)
- 5.Surface finish and cosmetic requirements
- 6.Required documentation (MTR, FAI, full dimensional, etc.)
- 7.Target delivery date and shipment destination
Supported upload formats: STEP, STP, IGES/IGS, X_T, X_B, SLDPRT, SAT, PDF, DWG, DXF
Up to 500 MB per RFQ
Request a Quote for Tight-Tolerance CNC Milling
Send your drawings and requirements, and we'll respond with a manufacturing approach focused on tolerance achievement, repeatability, and inspection evidence—especially for difficult alloys and complex multi-axis parts.
Request a Quote
Tell us about your component requirements and material challenges.