Robust CNC machining for carbon and alloy steels including 4140, 1018, 4340, and 12L14 with high tensile strength and heat treatability.
Precision Steel CNC Machining Service — Fast Turnaround, Tight Tolerances
STEEL CNC MACHINING
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✓
100,000+ Parts Made✓
ISO 9001:2015 Certified✓
98% On-Time Delivery
Molding? The Complete GuideJuly 24, 2026
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CNC Milling3-axis, 4-axis, and 5-axis milling for complex geometries, high-precision features, and smooth surface finishes in Steel.
CNC TurningLathe turning with live tooling for cylindrical Steel parts, shafts, threaded components, and tight concentricity.
5-Axis CNC MachiningSimultaneous 5-axis milling for organic contours, undercuts, and aerospace-grade complex Steel geometries in a single setup.
Steel CNC Machining Capabilities & ProcessesBreakdown of specific Steel CNC machining operations offered by SANGO.
China’s Steel CNC Machine Shops. Ship GloballySANGO's network of steel CNC facilities in China manufactures heavy-duty shafts, structural brackets, gears, and wear components. Rigid heavy-milling centers and precision grinding lines hold flatness and roundness on hardened steels up to 60 HRC.
1 DayFast Lead Time
0.001''Tight Tolerance
700+Machines Set
NPI Solutions (New Product Introduction):End-to-end guidance from initial concept, prototyping, and validation to mass production and packaging.
Industrial Automation:Dedicated manufacturing and component sourcing for automation systems.
Materials Library:Access to 50+ high-performance plastics and metals (Aluminum, Stainless Steel, Titanium, Brass, ABS, PA12, etc.).
Surface Finishing Services:Value-added finishes including Anodizing, Powder Coating, Painting, Polishing, Bead Blasting, and Electroplating.
MetalsPlasticsMaterial Verification
MetalsAluminiumStainless SteelTitaniumCopper & Brass(6061, 7075, 2024, 5052)(304, 316L, 17-4PH)(Grade 2, Grade 5)(C11000, C360, C260)
✓ Brass C360
✓ Alloy Steel 4140
✓ Pure Copper
✓ Magnesium AZ31B
Surface Finishes for CNC Machined PartsPost-processing and surface finishing options available to enhance aesthetics and mechanical properties.
As MachinedStandard finish leaving subtle tool marks (Ra 1.6–3.2 µm).
Bead BlastingUniform matte finish removing tool marks.
Anodizing (Type II & Type III Hardcoat)Corrosion resistance and color customization for parts.
Powder Coating & PaintingDurable color coatings matching RAL or Pantone specs.
Plating & PolishingElectroless nickel plating, chrome plating, mirror polishing, and brushing.
This project demonstrates what’s possible when industrial design, engineering, and supply chain integration come together under one agile team. And it’s a great example of how SANGO Automation empowers innovators to bring concept to product easier, faster.
Precision Steel Project: From Concept to Mass Production
Automotive
Aerospace
Medical
Consumer Products
Robotics
Automation
Steel CNC Machining for Various IndustriesFrom automotive to aerospace, SANGO Steel CNC machining meets the precise needs of diverse industries worldwide.
05Business days for most projects.
FAIFull Inspection Reports
1 dayDelivery of simple parts can be as fast
ISO9001:2015 Certified
Tolerances for Steel CNC MachiningWith strict adherence to industry tolerances, our CNC machining services ensure consistent accuracy for all Steel components.
Precision Steel TolerancesSANGO Automation manufactures and inspects Steel parts with strict tolerances according to drawing specifications and GD&T annotations, including tolerances tighter than +/- 0.001 inches.Precision verified on every part · No exceptions
1mmMin Drill Size
0.5mmMin End Mill
0.5mmMin Wall Thickness
Maximum Part Size
CNC Milling: 4000×1500×600 mmCNC Turning: 200×500 mm
Minimum Part Size
CNC Milling: 5×5×5 mmCNC Turning: 2×2 mm
Precision Steel CNC Machining with Guaranteed QualityOptimize your parts for cost-effective Steel CNC manufacturing with our design guidelines. Our engineers provide design-for-manufacturability (DFM) feedback before production.
CertificationsOur ISO 9001 certified CNC machining facilities, together with ISO 13485, ISO 14001, and IATF 16949, meet the highest international standards.
ExpertiseOver 30 quality engineers and 20+ advanced inspection tools, CMM Zeiss systems, and optical comparators ensure precise performance.
Transparent ProcessEvery stage, from raw Steel material to final inspection, follows strict quality control with full traceability and Mill Test Certificates.
Why Choose SANGO for Steel CNCKey advantages and differentiators of SANGO’s Steel CNC manufacturing infrastructure.
Start Your Steel Project
01
In-House FactoryDedicated CNC shop in Foshan with 400+ CNC machines.
02
Instant Quoting & DFMAutomated check with instant pricing feedback for Steel.
03
Strict Quality ControlCMM measurement, 2D optical instruments, and FAI reports.
04
Flexible Production Runs1 prototype part to 100,000+ full production with no minimum order (MOQ).
We machine Steel in our own facilities rather than brokering the job to a shop we don't control, so the tolerance and lead time we quote is one we're actually holding ourselves to. Every quote gets a DFM review specific to Steel — checking wall thickness, tool access and the grade's known machining behavior — before anything is scheduled on a machine.
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