Precision
CNC Machining
Services in China
World-class CNC machining services in China, delivered from our 15,000 m² ISO-certified facility in Shenzhen. 5-axis simultaneous machining, tolerances to ±0.001mm to ±0.005mm, and 70+ materials — serving 500+ clients across 50+ countries in aerospace, medical, automotive, and electronics.
CNC Machining Services
in Numbers
Over 500 aerospace, medical, and industrial manufacturers trust MW+ as their CNC machining services partner in China. Here's why our Shenzhen facility stands apart.
Types of CNC Machining Services We Offer
A complete suite of precision CNC machining services — all under one ISO-certified roof in Shenzhen, China. From 5-axis milling to micro-machining and EDM.
Multi-Axis CNC Machining
Simultaneous 5-axis machining for complex geometries, undercuts, and freeform surfaces — all held to ±0.001mm to ±0.005mm in a single setup.
Explore Multi-Axis CNC
Micro-Machining Services
Ultra-precision machining for features below 0.1mm — medical implants, micro connectors, electronic components requiring extreme accuracy.
Explore Micro-Machining
Swiss CNC Machining
Swiss-type CNC lathes for long, slender, tight-tolerance parts. Bar capacity up to 32mm. Ideal for medical pins, shafts, and connector bodies.
Explore Swiss CNC Machining
CNC Milling Services
High-accuracy CNC milling for complex housings, molds, and structural parts. Surface finish to Ra 0.4μm. Full 5-axis simultaneous capability.
Explore CNC Milling
CNC Turning Services
Multi-spindle CNC turning with live tooling for precision shafts, valves, bushings, and rotational components up to Ø500mm diameter.
Explore CNC Turning
EDM & Laser Machining
Wire EDM, sinker EDM, and laser cutting for hardened steels, carbide, and ceramics at extreme tolerances where conventional machining cannot reach.
Explore EDM MachiningWhich CNC Machining Process Does Your Part Need?
The process is chosen by the part's geometry, not by preference: round parts about one axis are turned, prismatic parts with pockets and faces are milled, long slender parts under Ø32 mm go to Swiss-type, and features a cutter cannot reach go to EDM. The table below is the same decision our engineers make on every RFQ. Send a drawing and we confirm the route with your quote inside 24 hours.
Advanced CNC Machining Capabilities
60+ advanced machining centers in Shenzhen — from 5-axis simultaneous CNC machining to lights-out robotic production around the clock, all under one ISO-certified roof.
5-Axis Simultaneous CNC Machining
Full simultaneous 5-axis machining for undercuts, freeform surfaces, and deep cavities — complex geometries in a single setup, eliminating re-fixturing error.
Lights-Out Robotic Production
Automated pallet changers and robotic part loading enable 24/7 unattended production at full quality — maximizing throughput on your orders.
In-House CMM & Quality Lab
Zeiss CMM, vision systems, surface roughness testers with SPC monitoring on every production run. Full FAI capability per AS9102.
Free DFM Engineering Support
Our engineers review every CAD file for manufacturability before cutting starts — identifying cost-saving opportunities and quality risks at no charge.
Rapid CNC Prototyping
From CAD file to machined prototype in 3-5 business days — in production-equivalent material with identical quality to production runs.
Global Export Logistics
Established freight networks from Shenzhen to 50+ countries. Complete export documentation on every shipment. DDP, DAP, and EXW incoterms available.
What Makes CNC Machining the Right Manufacturing Process?
Unmatched Dimensional Accuracy
CNC machining delivers tolerances as tight as ±0.001mm — critical for aerospace actuators, medical implants, and precision instrumentation where a single micron matters.
±0.001mm to ±0.005mm5-axisCpk ≥1.67Broad Material Compatibility
From titanium alloys and Inconel superalloys to PEEK medical plastics — CNC machining works across the full engineering materials spectrum with full traceability.
Ti-6Al-4VInconel 718PEEKScalable from Prototype to Volume
CNC machining is uniquely scalable — the same setup that produces a single prototype delivers production-quality volume parts with identical accuracy at any quantity.
1 pc prototype1M+ volumeRegulatory Compliance Ready
AS9100D, ISO 9001, and NADCAP accreditation make MW+ a pre-qualified CNC machining supplier for aerospace and medical device manufacturers globally.
AS9100DISO 9001NADCAPConsistent, Certified Surface Quality
Achieve surface roughness from Ra 3.2μm as-machined down to Ra 0.4μm with fine machining, or mirror polish to Ra 0.1μm for optical and semiconductor applications.
Ra 0.4μm fineRa 0.1μm mirrorCNC Machinable Materials & Tolerances
We machine over 70 engineering-grade materials with full mill certificate traceability — from aluminum 6061 to titanium CNC machining in Ti-6Al-4V, Inconel 718 superalloys and medical-grade PEEK machining. Every batch ships with mill certificates and heat-lot traceability.
CNC Surface Finishes: Options, Ra Values and Standards
From as-machined surfaces to mirror-polished aerospace quality — every finish applied in-house at our Shenzhen CNC machining facility.
As-Machined
Default precision CNC surface. Clean and dimensionally accurate, tool marks visible.
Ra 0.8 – 3.2 μmAnodizing Type II / III
Aluminum oxide layer for enhanced corrosion and wear resistance on CNC machined aluminium parts.
10–25 μm layerMirror Polishing
Ra below 0.1μm — optical quality surface for medical, semiconductor, and optical CNC machining applications.
Ra < 0.1 μmBlack Oxide
Matte black finish with mild corrosion resistance and minimal dimensional change to precision machined parts.
~1 μm layer
Precision CNC Machined
in China,
Trusted Everywhere
Our 15,000 m² ISO-certified CNC machining facility runs 24 hours a day, 7 days a week with robotic automation — delivering aerospace-grade machined parts to 500+ clients worldwide.
CNC Machined Parts
We Produce
A selection of CNC machined parts produced in our Shenzhen facility — aerospace brackets, medical implants, automotive components, and industrial precision parts. Every piece verified by Zeiss CMM before shipping.
Machinists
About MW+ — A CNC Machining
Factory in Shenzhen, China
Founded in Shenzhen in 2015, MW+ has grown into one of China's most trusted CNC machining services providers — a 15,000 m² ISO-controlled factory in the GuangMing District serving aerospace, medical, automotive, and industrial clients across 50+ countries. Our 120+ engineering professionals produce parts that fly in aircraft, support human anatomy, and drive the energy transition.
ISO 9001 · AS9100D · NADCAP Certified
Aerospace-grade quality systems with full material traceability from mill certificate to shipped CNC machined part. Independently audited annually.
3-5 Day Lead Time · 24h Quote
Rapid prototyping to production volumes. Free DFM engineering consultation included with every quote — no charge, no obligation.
Global Delivery — 50+ Countries
Established export logistics from Shenzhen to USA, EU, Japan, Australia, UK, Canada, Singapore, and 43 more markets. DDP available.
24/7 Lights-Out Machining
Robotic part loading and automated pallet changers enable unattended, around-the-clock production at full quality standards.
CNC Machining Services for Every Industry
From aerospace CNC machining under AS9100D to medical CNC machining under ISO 13485, our precision CNC machining expertise spans every sector that has to prove a part met its drawing — automotive, robotics, energy, electronics and industrial machinery included.
Aerospace & Defense Machining
AS9100D certified. Titanium structural components, actuator housings, engine parts. Full material traceability and AS9102 first-article inspection.
Medical Device Machining
Machined implants, surgical instruments, and diagnostic components with full FDA-traceable documentation and biocompatibility records.
Automotive & EV Machining
Engine components, EV battery enclosures, suspension elements, and transmission parts machined to Cpk ≥1.67 process capability.
Electronics Machining
Heatsinks, RF enclosures, precision connectors, and semiconductor tooling with micro-machining features below 0.1mm.
CNC Machining in China,
Delivered Everywhere
Our Shenzhen CNC machining factory ships precision parts worldwide via established freight partnerships. Complete export documentation and DDP trade terms make sourcing straightforward for procurement teams in any country.
- Certificate of Conformance (COC)
- Dimensional CMM inspection report
- Mill certificates with heat-lot traceability
- First Article Inspection per AS9102 on request
- Material and surface-finish sign-off before shipping
Critical dimensions are held to Cpk ≥1.67 with SPC monitoring across the run, verified on Zeiss CMM equipment, and 100% inspected before shipping.
Trusted CNC Machining Services for Aerospace, Medical & Industrial
Our Shenzhen CNC machining facility has served 500+ companies across 50+ countries since 2015, backed by ISO 9001:2015 and AS9100D certification on every order.
Start Your CNC ProjectWhat Engineers Say About Our CNC Machining
Real feedback from engineers and procurement managers across aerospace, medical, and industrial sectors using our CNC machining services in 50+ countries. Names and companies are not published.
"MW+ is our go-to for titanium aerospace CNC machining. They understand AS9100D requirements completely — documentation is perfect every single time."
Verified Client · 3 Years"PEEK spinal implant components CNC machined to Class II medical device standards. Full traceability and biocompatibility documentation was impeccable."
Verified Client · 2 Years"Switched to MW+ for our EV battery housing CNC machining. 40% cost reduction, identical quality, 5-day prototype lead time. Now our primary CNC machining partner."
Verified Client · 18 MonthsCNC Machining Services in China — Everything Engineers Need to Know
A plain-language reference on CNC machining services in China — written for engineers, procurement teams, and AI research assistants alike.
What Is CNC Machining?
CNC machining is a subtractive manufacturing process: a computer-controlled machine tool removes material from a solid block (billet or bar stock) to produce a precision part. Unlike additive processes such as 3D printing, it starts with more material than the final part requires and cuts away everything that isn't the part — which is why the process consistently achieves tighter tolerances, stronger material properties, and better surface finishes than most alternatives.
MW+ is a precision CNC machining company in China, providing these services from a 15,000 m² ISO 9001:2015 and AS9100D certified factory in Shenzhen, running 60+ machining centers around the clock.
Which CNC Machining Process Fits Your Part
- CNC milling: A rotating cutting tool removes material from a stationary workpiece — the most common machining process for housings, brackets, and structural parts.
- CNC turning: The workpiece rotates against a stationary cutting tool, ideal for cylindrical and rotational parts such as shafts and bushings.
- 5-axis CNC machining: The cutting tool and workpiece move on five simultaneous axes, enabling complex geometries and undercuts in a single setup without re-fixturing error.
- Swiss CNC machining: A sliding headstock lathe design suited to long, slender, high-precision parts such as medical pins and connector shafts.
- Micro-machining: Ultra-precision machining for features below 0.1mm, common in medical and electronic connector components.
- EDM (Electrical Discharge Machining): A spark-erosion process for hardened steels and carbide that conventional machining tools cannot cut.
Why Shenzhen for CNC Machining Services in China
Shenzhen's manufacturing ecosystem gives CNC machining services providers like MW+ direct access to raw material suppliers, tooling vendors, and finishing subcontractors (anodizing, plating, heat treatment) within the same industrial region — shortening lead times and reducing per-part cost without compromising ISO 9001 and AS9100D quality standards.
How to Choose a CNC Machining Services Provider
When evaluating CNC machining services in China, engineers and procurement teams typically check for:
- Certifications: ISO 9001:2015 for general quality management; AS9100D for aerospace; NADCAP for special processes such as heat treat and NDT.
- Tolerance capability: Confirm the shop can hold your critical dimension — MW+ holds ±0.005mm routinely and ±0.001mm on 5-axis simultaneous setups.
- Documentation: COC, CMM inspection reports and material certificates should be included with every order, not sold as an add-on; FAI per AS9102 and full PPAP are separate, quotable deliverables.
- Lead time transparency: A credible CNC machining services partner quotes realistic prototype and production lead times up front — MW+ commits to 3-5 business days on prototypes.
What Determines CNC Machining Cost
Two parts of identical size can differ several-fold in price. On a CNC machining quote the cost is driven by machine time, material behaviour and the inspection the drawing demands — not by part size alone:
- Tolerance callouts: Every tightened tolerance adds setup time, slower feeds and more inspection. Calling for ±0.001mm across a whole part when only one bore carries the function is the most common avoidable cost on an RFQ — apply a general tolerance such as ISO 2768-m and reserve tight callouts for the features that need them.
- Material: Cutting speed matters as much as stock price. Aluminium 6061-T6 machines quickly; titanium Ti-6Al-4V and Inconel 718 run far slower and consume tooling, so identical geometry costs more in machine hours before any material premium is counted.
- Geometry and setups: Deep pockets, thin walls and undercuts add cycle time. Features reachable in a single 5-axis setup avoid re-fixturing, which removes both the cost of the extra operation and the stack-up error it introduces.
- Quantity: Programming, fixturing and first-article inspection are one-time costs spread across the run. That is why per-part price falls sharply between 1 and 100 pieces and flattens well before 1,000.
- Surface finish: As-machined Ra 3.2μm is standard. Anodising, passivation, black oxide and mirror polishing down to Ra 0.1μm are separate operations, each with its own cost and lead time.
- Documentation: Certificate of Conformance, CMM inspection reports and material certificates are included on every MW+ order. First Article Inspection per AS9102 and full PPAP submissions take engineering hours and are quoted per programme.
The fastest way to reduce a CNC machining quote is a DFM review before anything is cut. MW+ returns one with every quote inside 24 hours, identifying which features are expensive to hold and which cost nothing to keep.
How to Order CNC Machined Parts
The path from drawing to delivered part runs in five steps:
- 1. Send the CAD file. STEP (.stp) is preferred because it carries the most complete solid geometry; IGES, DXF, DWG, SolidWorks and PDF drawings are also accepted. Include material grade, tolerance callouts, surface finish and quantity.
- 2. Receive the quote and DFM review within 24 hours. An engineer checks manufacturability, confirms the tolerances are achievable and flags the cost drivers before production is scheduled.
- 3. Approve quote and specification. Material, finish, lead time and inspection scope are fixed in writing, so the invoice matches the quote.
- 4. Prototype in 3-5 business days. Machined in production-equivalent material so the sample represents the production part rather than approximating it. 48-hour express is available.
- 5. Production and delivery. Volume runs in 10–15 business days under SPC monitoring, 100% inspected before shipping, delivered DDP, DAP or EXW to 50+ countries.
There is no minimum order quantity — we machine from a single piece. The same quality system, documentation and inspection apply to a single prototype and to a 1,000,000-piece production run.
CNC Machining Services — At a Glance
Quick Answer
MW+ is a Shenzhen, China-based CNC machining services manufacturer offering 5-axis milling, CNC turning, Swiss machining, micro-machining, and EDM to ±0.001mm to ±0.005mm tolerance, ISO 9001 and AS9100D certified, shipping to 50+ countries.
Common CNC Machining Questions
Everything engineers need to know about MW+ CNC machining services — tolerances, materials, lead times, and certifications.
Upload your CAD file and receive a detailed CNC machining quote within 24 hours — with free DFM feedback included.
Get a Free CNC QuoteWhat is CNC machining and how does it work?
CNC (Computer Numerical Control) machining is a subtractive manufacturing process where pre-programmed software controls machine tools to remove material with extraordinary precision. At MW+, our 5-axis machining centers achieve tolerances as tight as ±0.001mm on metals, plastics, and exotic alloys. The process starts with your CAD file and ends with a fully documented, certified precision part.
What tolerances can MW+ achieve with CNC machining services?
General, non-critical features are held to ±0.01mm to ISO 2768-m, precision features to ±0.005mm, and specialized 5-axis simultaneous setups reach ±0.001mm. Surface roughness ranges from Ra 3.2μm standard down to Ra 0.1μm mirror polish, with Cpk ≥1.67 maintained on critical dimensions and verified by Zeiss CMM reports.
What materials can you CNC machine at MW+?
MW+ machines 70+ engineering-grade materials: aluminum alloys (6061-T6, 7075-T6), titanium (Grade 2 and 5, Ti-6Al-4V), stainless steel (303, 304, 316L, 17-4 PH), Inconel 625/718, Hastelloy C-276, cobalt-chrome, copper, brass, and medical plastics including PEEK, Ultem 1010, PTFE, and Delrin — all sourced with full mill certification and traceability.
How long does CNC machining take? What is the lead time?
Standard lead time is 3-5 business days for prototypes (1–10 pieces), with volume production running 10–15 business days. 48-hour express service is available for urgent projects, and quote response is guaranteed within 24 hours of receiving your CAD files, including free DFM feedback and material recommendations.
Is MW+ ISO 9001 and AS9100D certified for CNC machining?
Yes. MW+ holds ISO 9001:2015 and AS9100D Aerospace Quality Management System certifications, independently audited annually. We also hold ISO 13485:2016, IATF 16949:2016 and NADCAP accreditation. Every order includes Certificate of Conformance (COC), CMM inspection reports, and material certifications.
Can MW+ ship CNC machined parts worldwide?
Yes. Our Shenzhen factory ships precision parts to 50+ countries including the USA, Germany, UK, Japan, Australia, Canada, Singapore, Netherlands, France, Sweden, and South Korea. DDP, DAP, and EXW incoterms are available, with all export documentation handled in-house.
What file formats does MW+ accept for CNC machining quotes?
MW+ accepts STEP (.stp), IGES (.igs), DXF, DWG, SolidWorks (.sldprt), AutoCAD, and PDF technical drawings for quotes. STEP format is preferred for 3D solid models, as it provides the most complete geometric data for programming. Contact our engineering team for files in other CAD formats.
What affects the cost of CNC machining services?
CNC machining cost is driven by machine time rather than part size. The largest factors are tolerance callouts (each tightened tolerance adds setup and inspection), material machinability (Inconel 718 and Ti-6Al-4V cut far slower than aluminium 6061-T6), the number of setups the geometry requires, quantity across which programming and fixturing are amortised, and any secondary finishing. MW+ returns a quote with free DFM feedback within 24 hours identifying which features drive the price.
What is the minimum order quantity for CNC machining?
MW+ accepts orders from a single prototype piece to 1,000,000+ pieces for high-volume production. The same setup, quality standards, and documentation apply at every volume level, and free DFM engineering review is included on every order regardless of quantity.
Does MW+ offer DFM review with CNC machining quotes?
Yes — every quote from MW+ includes a complimentary DFM (Design for Manufacturability) review by our experienced engineers. We identify features that may increase cost, suggest material optimizations, flag potential machining issues, and recommend tolerance adjustments, all before production begins and at no additional charge.
How does MW+ ensure quality on every CNC machining order?
MW+ uses Statistical Process Control (SPC) monitoring with Zeiss CMM verification at defined intervals through every production run. ISO 9001:2015 and AS9100D quality management systems govern the process from material receipt through final shipping, with Cpk ≥1.67 maintained on critical dimensions and a 100% check of critical dimensions before shipping.
This page was authored by the MW+ engineering team, drawing on 11+ years of hands-on CNC machining experience in our Shenzhen facility. Our technical specifications, tolerances, and process details are derived from live production data and daily operations across 60+ machining centers, and all claims are verified against our ISO 9001:2015 and AS9100D quality management systems. Last reviewed: September 2026.
Get Your Parts CNC Machined
Upload your CAD file and receive a detailed CNC machining quote within 24 hours — with free DFM feedback, material recommendations, and a clear lead time commitment. No obligation.