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CNC Machining Service

CNC Machining Services for High-Precision Custom Parts

We produce parts based on customer drawings, 3D models, or technical specifications, supporting everything from rapid prototyping to high-volume production.

Our engineering team reviews every project before manufacturing to evaluate material selection, machining strategy, and tolerance requirements.

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Why Top OEMs Choose Our CNC Machining Services

Guaranteed Intellectual Property Protection

Standard mutual NDAs ensure full protection of your CAD data.

Multi-Axis Advanced Machining

From simple parts to complex 3D geometries with simultaneous multi-axis machining.

Broad Material & Surface Integration

Wide selection of 50+ certified metals and plastics with complete surface finishing options.

Strict Quality Tracking

ISO 9001:2015 system with full traceability and detailed dimensional inspection reports.One-stop solution including surface finishing and secondary operations

Our CNC Machining Capabilities

We offer flexible, high-accuracy manufacturing solutions designed to accommodate strict tolerances and challenging aerospace, medical, and automation geometries.

Feature / Capability	Technical Specifications & Factory Standards
Manufacturing Methods	CNC Milling (3-Axis, 4-Axis, Simultaneous 5-Axis), CNC Turning, Swiss Machining, Live-Tooling Turn-Mill
Production Volume	1-Piece Functional Prototypes, Low-Volume Pilot Runs, and Automated High-Volume Mass Production
Machining Envelope (Milling)	Max Enclosure Size: Up to 1,500 mm × 800 mm × 600 mm (59.05 in. × 31.49 in. × 23.62 in.)
Machining Envelope (Turning)	Max Diameter: Up to Φ 350 mm (13.78 in.); Max Turning Length: Up to 600 mm (23.62 in.)
Precision Batch Tolerances	Metals: +/- 0.010 mm (+/- 0.0004 in.) ; Engineering Plastics: +/- 0.025 mm (+/- 0.001 in.)
Limit Accuracy (Critical Features)	Down to +/- 0.005 mm (+/- 0.0002 in.) upon strict technical blueprint review and grinding application
Surface Roughness (As-Machined)	Baseline of Ra 0.8 - 1.6 μm (Smooth micro-milled surfaces up to Ra 0.4 μm achievable via micro-tooling)
Native CAD File Support	STEP, STP, IGES, IGS, X_T, STL, DWG, DXF, and Native SolidWorks or Pro/E Files
Secondary Processes Available	Precision Deep-Hole Drilling, In-Line Tapping, Reaming, Boring, Counterboring, Broaching, Laser Etching

CNC Machining Processes We Offer

To accommodate complex geometries and diverse product structures, we operate a multi-disciplinary precision workshop offering integrated machining methodologies:

Machining Process	Equipment Capabilities	Common Applications & Geometries	Key Technical Advantage
Multi-Axis Milling	3-Axis, 4-Axis, and Simultaneous 5-Axis CNC Machining Centers	Structural brackets, housings, enclosures, manifolds, plates, and complex 3D profiles	Multi-sided machining in a single setup for complex organic shapes
CNC Turning	CNC Lathes with automated bar-feeders (Max Φ 65 mm / Φ 350 mm)	Cylindrical and rotational parts, stepped shafts, axles, custom pins, bushings, and sleeves	Flawless concentricity and repeatable circular runout for high-volume runs
Turn-Mill Integration	Multi-axis Live-Tooling Turn-Mill Centers	Rotational parts requiring cross-drilling, off-axis milling, keyways, and tapping	Single-setup execution to eliminate accumulated indexing tolerances
Swiss Machining	High-precision CNC Swiss-Type Lathes	Miniature pins, high-density connectors, valve needles, and slender/elongated parts	Extreme rigidity next to guide bushing; prevents deflection on thin parts
Secondary Processes	In-line tapping, precise reaming, boring, counterboring, and laser etching	High-precision threaded holes, close-tolerance bearing bores, and custom serialization	Fully completed, deburred, and ready-to-assemble OEM components

Materials We Machine

Premium Aluminum Alloys
Grades: 6061-T6, 7075-T6, 5052, 2024, 6082

Attributes: High strength-to-weight ratio, excellent natural atmospheric corrosion resistance, and superb thermal conductivity. Highly receptive to anodizing treatments.

Common Applications: Aerospace structural hardware, drone frames, automotive engine brackets, and electronics heat sinks.

Stainless Steel Alloys
Grades: SUS303, SUS304, SUS316L, 17-4 PH, 416, 420

Attributes: Superior tensile strength, exceptional wear fatigue life, and excellent corrosion resistance against aggressive chemical or marine exposure.

Common Applications: Medical surgical instruments, food-grade processing valves, fluid control manifolds, and marine locking pins.

Carbon & Alloy Structural Steel
Grades: 1018, 1045, 12L14 (Free-machining structural steel), 4140, 4340

Attributes: Exceptional impact resistance and high structural yield strength. Highly responsive to secondary case hardening, nitriding, and heat treatments.

Common Applications: Heavy-duty transmission shafts, industrial gears, drive couplings, bushings, and high-load assembly fixtures.

Brass, Copper & Bronze Alloys
Grades: C36000 Free-Cutting Brass, C11000 Pure Copper, Phosphor Bronze

Attributes: Premium electrical and thermal conductivity, inherently low friction coefficients, and excellent spark resistance.

Common Applications: Heavy-duty electrical terminal pins, fluid plumbing adapters, threaded screw inserts, and sliding friction bearings.

Titanium & High-Temperature Superalloys
Grades: Titanium Grade 2, Grade 5 (Ti-6Al-4V), Inconel 718, Hastelloy C276

Attributes: Extreme weight reduction coupled with ultra-high fatigue limits under elevated temperatures and harsh acidic conditions.

Advanced Engineering Polymers
Materials: PEEK (Unfilled/Glass-Filled), POM (Delrin), Nylon 6/66, PTFE (Teflon), Polycarbonate (PC), ABS.

Attributes: High strength-to-weight ratios, self-lubricating options, high chemical resistance, and premium electrical insulation properties.

Certified Surface Finishing Services

Streamline your supply chain by taking advantage of our complete, in-house post-machining surface treatments:

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Anodizing (Type II Clear/Colored & Type III Industrial Hard Anodizing): Adds an ultra-hard, wear-resistant oxide layer. Ideal for aluminum components.

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Plating & Metal Coatings: Electroless Nickel Plating, industrial zinc plating, gold/silver plating, and protective chrome plating.

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Chemical Conversion Barriers: Black Oxide for steel components, Passivation for stainless steel items, and Chromate Conversion (Alodine).

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Surface Texturing & Preparation: High-precision automated bead blasting, sandblasting, mechanical mirror polishing, and tumbling.

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Industrial Coatings: Heavy-duty powder coating, liquid painting, and uniform electro-coating (E-coating).

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Identification: Direct part marking using high-precision laser etching, alphanumeric serialization, and custom logo engraving.

Custom Parts We Manufacture

We produce a wide variety of precision components for OEM customers across multiple industries.

Electronics & Enclosures: Extruded and milled aluminum sensor housings, shielding chassis, facial bezels, and cooling heat sinks.

Fluid Power Mechanics: Multi-port hydraulic valve manifolds, pneumatic bodies, custom nozzles, and high-pressure fluid connectors.

Industrial Robotics Hardware: High-torque mechanical brackets, robotic arm joints, link connectors, splined drive shafts, and custom locating fixtures.

Precision Hardware: Stepped spacers, standoffs, threaded bushings, specialized flanges, and long dowel alignment pins.

Systematic Quality Assurance

At SHD, quality is actively planned and managed into every manufacturing stage through an ISO 9001:2015 certified workflow.

Pre-Production Review

Full DFM audit of drawings to confirm tolerances, threads, and key dimensions before machining.

Material Verification

Incoming materials checked with spectral analysis and supported by certified MTCs.

In-Process Inspection

Routine dimensional checks during production using calibrated gauges and measuring tools.

Final Quality Control

CMM and optical inspection in a controlled lab to verify parts against CAD data.

Shipping Documentation

Full OQC reports included, with detailed CMM data available on request.

Industries We Serve

Our CNC machining services support manufacturers and product developers in a diverse range of industries.

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Aerospace
Lightweight alloys and precision components for demanding applications.

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Automotive
Reliable production of mechanical parts, fixtures, and custom assemblies.

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Medical Devices
Precision-machined components requiring dimensional stability and consistent quality.

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Industrial Automation
Custom parts for robotics, conveyors, and automated production systems.

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Electronics
Aluminum housings, heat sinks, brackets, and precision structural components.

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Energy and Fluid Control
Valve components, connectors, manifolds, and sealing interfaces used in industrial systems.

Our Standard Manufacturing Workflow

Secure Document Submission: Upload your 3D models (STEP, IGES, X_T) alongside your technical 2D PDFs showing explicit tolerance labels.

DFM Feasibility Feedback: Our engineering desk evaluates your file geometry to identify potential machining complications and cost-reduction opportunities.

Itemized Quote Confirmation: Receive a transparent commercial quotation breaking down material, machining cycles, and finishing costs within 24 hours.

Machining Setup & Deployment: Material sourcing, CAM programming, multi-axis tooling setup, and high-precision CNC machining deployment.

Metrology Inspection & Shipping: Rigorous QA clearing, heavy-duty protective layer packaging, and worldwide express tracking dispatch (FOB, CIF, DDP, DDU terms available).

Engineering & DFM Support

Beyond manufacturing, our engineering team provides Design for Manufacturability (DFM) support to help customers optimize production.

Services include:

• Machining feasibility analysis
• Material selection recommendations
• Tolerance review
• Cost reduction suggestions
• Process optimization
• Simplification of complex geometries where appropriate

Frequently Asked Questions

Q: Can your factory sign an NDA before we share our proprietary CAD models?

A: Yes, absolutely. We prioritize your data security. SHD routinely executes standard mutual Non-Disclosure Agreements (NDAs) before engineering blueprints or 3D files are uploaded.

Q: What is the maximum size part your CNC machines can accommodate?

A: For multi-axis CNC milling, our maximum machining travel envelope reaches up to 1,500 mm × 800 mm × 600 mm (59.05 in. × 31.49 in. × 23.62 in.). For CNC turning operations, our lathes handle chucked parts up to Φ 350 mm (13.78 in.) in diameter.

Q: What are your minimum order quantity (MOQ) terms?

A: We maintain no Minimum Order Quantity (MOQ) limits. We provide the exact same technical attention and engineering precision for a 1-piece R&D prototype as we do for long-term contract manufacturing agreements scaling up to 10,000+ units.

Q: What tolerances can you consistently maintain across a mass production run?

A: For standard metallic components, we confidently maintain linear, concentric, and positional tolerances down to +/- 0.010 mm (+/- 0.0004 in.). Critical precision features such as specialized bearing bores can be held down to +/- 0.005 mm (+/- 0.0002 in.) upon strict technical design review.

Q: Do you accept physical samples for reverse engineering if I do not have CAD files?

A: Yes. If digital 2D or 3D prints are unavailable, you can ship physical components directly to our metrology lab. We will perform exact dimensional scanning and reverse-engineer native CAD files for production.

Q: Do you provide material certifications and dimensional inspection documentation with shipments?

A: Yes, guaranteed. Every shipment leaves our facility with standard dimensional OQC layout reports. Traceable Material Test Certificates (MTC) proving alloy purity and full automated CMM inspection data are supplied free of charge upon request.

Q: How fast can I expect an official quotation and DFM feedback?

A: Simply submit your engineering files through our secure inquiry form. Our engineering desk and quotation team will deliver an itemized commercial breakdown and initial DFM review within 24 hours.

With abundant experience, we are one of the most professional CNC machining products manufacturers and suppliers in China. If you're going to buy bulk high quality CNC machining products made in China, welcome to get free sample from our factory. Also, custom service is available.