Rapid prototyping and end-use production parts with tolerances to ±0.001″, walls down to 0.020″, and simple parts shipping in a day.
Precision CNC Machining Service — Fast Turnaround, Tight Tolerances
CNC Machining
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ISO 9001:2015 Certified✓
98% On-Time Delivery✓
100,000+ Parts Made
CNC Milling3-axis, 4-axis and 5-axis milling for complex geometries, high-precision features and smooth surface finishes. Five-axis work holds the part in one setup, eliminating re-fixturing stack errors.
CNC TurningLathe turning with live tooling for cylindrical parts, shafts and threaded components. Live tooling adds drilling and cross-holes on the same machine so parts come off complete.
Surface FinishingAnodising, bead blasting, powder coating, plating and polishing applied in-house after machining. Finishing is planned at quoting stage to account for dimensional build-up.
CNC Machining Capabilities & ProcessesThree operations cover almost every machined part we quote. Which one you need usually comes down to whether the geometry is prismatic, cylindrical, or waiting on a surface.
China’s CNC Machine Shops. Ship GloballyOur CNC facilities in China run standard machining centres alongside grinders, wire cutters and EDM machines on automated production lines. That mix is why a part needing a hardened insert or a sharp internal corner doesn't have to leave the building — and why simple parts can ship the day after you approve the quote.
1 DayFast Lead Time
0.001″Tight Tolerance
700+Machines in Network
NPI SolutionsEnd-to-end guidance from concept and prototyping through validation, mass production and packaging.
Industrial AutomationManufacturing and component sourcing for automation builds — frames, brackets, enclosures and custom mechanical parts.
Materials Library50+ production metals and plastics, each listed with the tolerances and finishes it actually supports.
Surface FinishingAnodising, powder coating, painting, polishing, bead blasting and electroplating, matched to RAL or Pantone.
Production Metals
Aluminium6061, 7075, 2024, 5052
Stainless Steel304, 316L, 17-4PH
TitaniumGrade 2, Grade 5
Brass & CopperC36000, Pure C11000
Alloy & Tool Steel4140, 4340, D2, A2
Bronze & MagnesiumBearing Bronze, AZ31
Surface Finishes for CNC Machined PartsPost-processing changes how a part looks, how it resists corrosion, and sometimes how big it is. Pick the finish at quoting stage so tolerance is calculated around it.
As MachinedStandard finish leaving subtle tool marks (Ra 1.6–3.2 µm). Nothing added, nothing to allow for dimensionally.
Bead BlastingUniform matte finish that removes tool marks. Common as a base layer before anodising.
Anodizing (Type II & Type III)Corrosion resistance and colour for aluminium. Type II for appearance, Type III for wear (adds measurable thickness).
Powder Coating & PaintingDurable colour coatings matched to RAL or Pantone. Thicker than anodising and suitable for steel as well as aluminium.
Plating & PolishingElectroless nickel plating, chrome plating, mirror polishing and brushing for conductivity, hardness or cosmetic appeal.
This project shows what happens when industrial design, engineering and supply chain sit inside one team. Design changes fed straight into tooling decisions, tooling decisions fed straight into cost, and the client saw the effect of both before committing — which is how a concept becomes a shipping product without the usual six weeks lost to handovers.Neck Massager Project: From Concept to Mass Production
Customer Success StorySANGO Automation partners with companies across automotive, aerospace, medical, electronics, and robotics industries.
AutomotiveBrackets, housings, fixtures and test parts that hold tolerance under vibration.
Aerospace5-axis machined aluminium and titanium components with full traceability.
Medical316L and Grade 5 parts machined to documented dimensional standards.
Consumer ProductsCosmetic housings and enclosures where surface finish matters as much as fit.
RoboticsArms, joints, mounts and end-effector components with tight concentricity.
AutomationMachine frames, guarding, custom jigs and replacement parts for production lines.
CNC Machining for Various IndustriesSANGO Automation machines parts for automotive, aerospace, medical, electronics, robotics and industrial automation programmes — for independent inventors and large enterprises alike.
5 DaysBusiness days, most projects
FAIFull Inspection Reports
1 DaySimple part delivery turnaround
ISO9001:2015 Certified facility
Tolerances for CNC MachiningOur CNC machining holds consistent accuracy against your drawing so components fit the assembly they were designed for, not just the print.
Precision TolerancesWe manufacture and inspect to your drawing specifications and GD&T annotations, including tolerances tighter than ±0.001″. Every part is verified — no exceptions.
1 mmMin Drill Size
0.5 mmMin End Mill Size
0.5 mmMin Wall Thickness
Maximum Part SizeCNC Milling: 4000 × 1500 × 600 mmCNC Turning: 200 × 500 mm
Minimum Part SizeCNC Milling: 5 × 5 × 5 mmCNC Turning: 2 × 2 mm
Precision verified on every single part · Full CMM traceability
Precision CNC Machining with Guaranteed QualityOur engineers review your design for manufacturability before production, so cost and tolerance problems surface while they're still drawings rather than scrap.
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CertificationsOur ISO 9001:2015 certified CNC machining facilities meet the highest international standards for quality and compliance.
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ExpertiseExperienced quality engineers working with 20+ inspection tools including CMMs, 2D optical measuring systems and XRF analysers.
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Transparent ProcessEvery stage from raw material to final inspection carries documented checks and full traceability for complete peace of mind.
Why Choose SANGO for CNC MachiningKey advantages and differentiators of SANGO’s CNC manufacturing infrastructure.
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In-House Factory & CapacityA dedicated CNC shop with multi-axis machines under our own management. Capacity we control means lead times we can promise.
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Instant Quoting & DFMAutomated geometry and tolerance checking with pricing feedback in seconds, plus manual engineer review on complex parts.
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Strict Quality ControlCMM measurement, 2D optical inspection, FAI reports and ISO 9001:2015 certification behind every shipment.
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Flexible Production RunsOne prototype or 100,000 production parts, no minimum order. The same team handles both, so scaling up doesn't mean starting over.
Frequently Asked Questions
A broker forwards your file to a shop it doesn't control and forwards the answer back. We machine in our own facility, so when we commit to a tolerance or a date, we're committing to machines and people we manage. You also get engineering judgement rather than just a price — our DFM review will tell you that a 0.4 mm wall won't survive the cut, or that moving a tolerance from ±0.001″ to ±0.005″ on a non-critical face cuts your unit cost meaningfully.
CNC Machining Technical ResourcesView More
CNC Material Selection Guide: Metals vs Engineering PlasticsJuly 24, 2026
Design for Machining (DFM): How to Cut Tooling & Setup CostsJuly 24, 2026
CNC Milling vs CNC Turning: Choosing the Right ProcessJuly 24, 2026