CNC Machining China for OEM Metal & Plastic Parts
We run the machines in Dongguan, Guangdong—next to Shenzhen and Hong Kong for freight. Haas-class mills and lathes, English on the RFQ, and work for aerospace, automotive, medical device, electronics, and industrial programs across North America, Europe, and Australia.
- Milling, turning, and 5-axis when it cuts setups
- Samples often ready in 3–5 days
- Tolerances quoted to your print (±0.005 mm where the part allows)
- DFM feedback with the quote—not after the job is cut
Custom CNC Machining in China for Fast Prototypes & Production
China CNC Machining Co supports B2B buyers who need dependable quality, responsive engineering support, and competitive direct-factory pricing. We machine custom metal and plastic parts with repeatable tolerances and clear documentation for approvals and repeat orders.
- Sustainable Manufacturing & ISO 9001 Certified
- Advanced Automation & CMM Inspection
- Efficient Production Processes (3-5 day prototypes)
- Reliable Global Delivery Services
Precision CNC Services Built for B2B Buyers
From CNC milling and turning to 5-axis machining, prototyping, and surface finishing, we help teams move from RFQ to approved parts with predictable lead times and factory-direct communication.
CNC Milling Service
China CNC milling service for precision housings, brackets, and complex geometries—3, 4, and 5-axis options with tight positional control.
CNC Turning Service
China CNC turning service for shafts, pins, bushings, and threaded components—consistent diameters and surface finish for repeat orders.
5-Axis Machining
5 axis CNC machining in China for angled features and complex surfaces—fewer setups to protect tolerances and speed up delivery.
Rapid Prototyping
CNC prototype service in China with fast turnaround for design validation, fit checks, and functional testing before production.
Surface Finishing
CNC surface finishing in China including anodizing, passivation, powder coating, plating, blasting, and polishing—per specification.
Low-Volume Production
Low volume CNC machining in China for pilot builds and small batches—bridge prototypes to production with stable repeatability.
Built for Repeatable CNC Production
Our capability is designed for teams that need precision components, dependable delivery, and engineering input that reduces rework before machining starts. We validate manufacturability early, keep communication clear, and support stable results for repeat builds.
Trusted CNC Machining China Platform for OEM-Ready Parts
Production depends on stable processes and reliable CNC equipment. Our CNC machining China capabilities are supported by industry-standard machine brands, helping teams build OEM-ready parts with consistent results.
Quality Control You Can Approve with Confidence
Quality control is built into every step—from material verification to final inspection—so you can approve parts with confidence and maintain consistency on repeat orders. Documentation is aligned to your specification and order requirements.
Measurement & Verification
CMM inspection (Zeiss / Mitutoyo), video measuring systems (VMS), and automated optical sorting for dimensional verification.
Material & Process Standards
Material records and process documentation aligned to your specs. RoHS/REACH files can be provided when required for your program.
Ongoing Process Control
In-process checks, final inspection, and CMM reporting when required—supporting stable quality for repeat builds.
IP & Project Protection
Strict NDA-ready workflows safeguarding proprietary CAD geometries and project information.
Why China CNC Machining Co for Approved CNC Parts
B2B teams choose us when they need direct factory control, free DFM feedback, and quality documentation that supports approval and repeat production.
Factory-Direct Precision
Direct manufacturer with fewer handoffs. Stable results for repeat builds.
Free DFM Feedback
Free design for manufacturability feedback. Flags risks before machining starts.
ISO 9001 & Measured Quality
CMM (Zeiss/Mitutoyo), VMS, and optical sorting when required. Records aligned to your order.
NDA-Ready IP Protection
Strict NDA workflows safeguard proprietary CAD and project information.
Prototypes in 3–5 Days
Prototypes available in 3–5 days. Production scheduling confirmed during quoting.
International Shipping
Export-packed and shipped internationally via courier or freight based on size and urgency.
A Controlled Workflow from RFQ to Delivery
A controlled workflow helps reduce rework, protect critical dimensions, and keep lead times predictable. From CAD review to final inspection and secure export packing, each step is documented so B2B teams can approve parts with confidence.
Review Your Drawings
Share your CAD and requirements. We review geometry, critical tolerances, material, quantity, and surface finish needs to confirm manufacturability and risk points early.
Provide DFM & Quote
Get a clear quote with lead time and practical DFM feedback. If something may drive cost or risk (thin walls, tight corners, deep bores), we’ll flag it before machining starts.
Machine & Inspect
Parts are machined on the right CNC process (milling, turning, or 5-axis). In-process checks and dimensional verification support stable quality and repeatable builds.
Finish & Ship
Surface finishing is completed per specification, followed by final inspection and secure packing. We ship internationally via courier or freight options based on part size and urgency.
Frequently Asked Questions
How quickly can I get a CNC machining quote?
Quotes are typically returned within 12–24 business hours after we receive your CAD files. If we spot a design detail that could affect cost, lead time, or quality, we’ll include practical manufacturability feedback before production starts.
What file formats do you need for quoting?
For quoting, 3D CAD is best—STEP/STP, IGES/IGS, X_T, or STL are commonly used. If you have critical dimensions, GD&T, special tolerances, or surface finish requirements, include a 2D drawing (PDF or DWG) so we can quote accurately.
What materials can you machine?
We machine a wide range of metals and engineering plastics. Common options include aluminum, stainless steel, steel, brass, copper, titanium, magnesium, ABS, PEEK, acetal (Delrin/POM), nylon, polycarbonate, PTFE, and other project-specific materials.
Do you offer surface finishing operations?
Yes. We support common finishing options such as anodizing, powder coating, electroplating, passivation, bead blasting, and polishing. Tell us your cosmetic and functional requirements (appearance, corrosion resistance, wear) so we can recommend the right finish.
What tolerance levels can you achieve?
Tolerance depends on material, geometry, and feature accessibility. For suitable designs, we can support tolerances down to +/-0.005 mm (+/-0.0002"). If you have critical features, call them out on the drawing so we can plan the right inspection approach.
Is there a minimum order quantity (MOQ)?
There is no fixed MOQ at our Dongguan facility. We support CNC prototypes, low-volume batches, and higher-volume production from the same China workshop—recommended quantities depend on part geometry, material, and target price point. If you share annual volume expectations and timelines, we can suggest the most cost-effective machining and finishing approach for your program.
How do you ship CNC parts internationally?
Parts are export-packed and shipped internationally using courier or freight options depending on size, weight, and urgency. Shipping method and terms are confirmed during quoting so delivery timing and cost are clear before production.
Can you provide inspection and material reports?
Yes. When requested, we can provide CMM reports, dimensional inspection records, and material documentation aligned to your order requirements. Let us know which features are critical so the inspection plan and reporting match your approval process.
What are typical lead times for CNC prototypes and production?
Rapid CNC prototypes are often available in 3–5 days. Production lead times depend on complexity, quantity, and finishing; many programs are on the order of roughly 2–3 weeks after order confirmation. Exact schedules and shipping terms are confirmed during quoting so delivery timing and cost are clear before production.
Send your drawing.
Get a real quote.
Upload STEP, IGES, STL, DWG, or PDF files. You'll hear back from the factory floor — not a middleman — with pricing, lead time, and manufacturability feedback.
Why buyers choose us
-
12–24h quote turnaround Pricing, lead time, and DFM feedback — fast.
-
NDA-ready & confidential Your CAD files and IP stay protected.
-
ISO 9001:2015 certified Documented inspection at every stage.
-
No fixed MOQ From single prototypes to full production runs.