Precision CNC Machining China
CNC machining China through DEK gives OEMs and startups certified parts held to ±0.005mm, from one prototype to full production. Backed by 20+ years and a 98.6%+ on-time delivery rate.
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20+
Years Machining
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2,300+
Global OEM Clients
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98.6%+
On-Time Delivery
China CNC Machining Services for Global OEMs
DEK gives North American and European OEMs, startups and procurement teams one certified production partner, from a single prototype to a full run. We combine CNC milling services and CNC turning services across 50+ metals and engineering plastics.
Tolerances reach ±0.005mm for general machining and ±0.003mm on micro parts under 10mm. Every order runs through documented IQC, IPQC, FAI, OQC, SPC and CAPA stages under ISO 9001, ISO 13485 and AS9100D. See our quality system.
Why Source CNC Machining with DEK
Quality parity, communication and IP protection are the three questions every buyer asks. Here is how DEK answers each one.
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Certified Quality Parity
TUV audited and registered DEK to ISO 9001, ISO 13485:2016 and AS9100D, the same quality infrastructure aerospace and medical buyers expect at home.
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Direct Communication
A dedicated account manager coordinates with the engineering and production teams, so tolerance callouts and revisions are not filtered through a sales layer.
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IP Stays In-House
Your files stay with one accountable production team, with no brokered subcontracting. An NDA can be signed before you share sensitive designs.
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Reliable Delivery
A 98.6%+ on-time delivery rate across 2,300+ global OEM clients, with prototypes shipping in as little as 3 days to North America and Europe.
Engineer-Reviewed Quotes
Send a drawing and an engineer returns an itemized quote within 6 hours for most parts. DEK quotes directly against factory capacity, with no marketplace markup and no minimum order quantity.
CNC Machining China Capabilities
Milling, turning, EDM, grinding and gear machining under one documented QMS, with tolerances and lead times confirmed at quoting.
CNC Machining vs. EDM, Grinding and Swiss Turning
Milling and turning cover most parts; DEK adds EDM, grinding or Swiss turning when the geometry, hardness or finish calls for it, all quoted by one engineer.
| Criteria | This ProcessCNC Milling & Turning | EDM | Precision Grinding | Swiss Turning |
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| Best for | Prismatic and turned parts | Hardened materials | Finish-critical dimensions | Slender shafts and pins |
| Geometry | Up to complex 5-axis | Features tools can’t reach | Critical surfaces | Slender, high-precision |
| Typical tolerance | ±0.005mm general | Confirmed at quoting | Confirmed at quoting | Confirmed at quoting |
| Choose when | Most custom parts | Cutters can’t reach | After heat treatment | Long, small-diameter parts |
| Minimum order | No MOQ | No MOQ | No MOQ | No MOQ |
Industries We Serve from China
Aerospace, medical devices, automotive and robotics teams source certified machined parts from DEK, with traceable production records.
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Aerospace
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Medical
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Automotive
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Robotics
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Semiconductor
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Electronic
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Telecom
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Drone & UAV
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Energy
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Oil & Gas
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Marine
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Industrial Equipment
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Construction
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Agriculture
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Consumer Products
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Military & Defense
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Mining
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AerospaceNon-flight-critical brackets, cabin hardware and fittings under AS9100D, in 7075 aluminum, Ti-6Al-4V and Inconel 718, with FAI.Learn More -
MedicalInstrument shafts, handles and cannulas in 316L stainless, titanium and PEEK under ISO 13485, with lot traceability as standard.Learn More -
AutomotivePrototype and low-to-mid-volume sensor housings, valve bodies and shafts in aluminum, 4140 and 4340 alloy steel, stainless and brass.Learn More -
RoboticsJoint housings, harmonic drive flanges and gripper fingers in aluminum and hardened steel, with 5-axis milling in one setup.Learn More -
SemiconductorChamber components, wafer handling fixtures and vacuum flanges in 6061 aluminum, 316L, PEEK and Kovar, with burr-free edges.Learn More -
ElectronicConnector bodies, heat sinks, RF shields and precision pins in aluminum, brass and copper, held to ±0.01 mm on contact features.Learn More -
TelecomWaveguide components, filter housings and RF enclosures in aluminum and copper alloys, with silver or nickel plating for conductivity.Learn More -
Drone & UAVMotor mounts, gimbal frames and landing gear fittings in 7075 aluminum, titanium and magnesium to cut weight without losing stiffness.Learn More -
EnergyBattery end plates, busbars, inverter housings and fuel-cell fittings in aluminum, copper and stainless, machined flat and burr-free.Learn More -
Oil & GasValve components, manifold blocks, downhole tool parts and flanges in 4140, 17-4 PH, duplex 2205 and Inconel, with hardness specs.Learn More -
MarinePropeller shafts, pump parts and deck hardware in 316 stainless, bronze and aluminum bronze, chosen first for corrosion resistance.Learn More -
Industrial EquipmentGripper plates, linear guide mounts, cam followers and machine frames in aluminum and steel, with fixtures kept on file for repeats.Learn More -
ConstructionStructural brackets, anchoring hardware and hydraulic fittings in mild steel, alloy steel and aluminum, zinc plated or powder coated.Learn More -
AgricultureGearbox housings, shafts, sprayer nozzle bodies and sensor mounts in cast iron, steel and stainless for abrasion and moisture.Learn More -
Consumer ProductsKnobs, handles, enclosure parts and audio hardware where the machined surface shows, anodized, bead blasted or polished to sample.Learn More -
Military & DefenseOptical mounts, enclosures and accessory rails in aluminum, steel and titanium, with material certification and FAI reports.Learn More -
MiningWear plates, bushings, crusher components and hydraulic fittings in hardened alloy steel, bronze and stainless for dust and vibration.Learn More
Part Types and Sourcing Challenges
From micro parts under 10mm to parts near 1000mm, here is what our China CNC machining services handle in one factory.
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Complex 5-Axis Geometry
Profile control to ±0.01mm on complex parts through complex parts machining on 5-axis centers.
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Micro-Precision Parts
Parts under 10mm held to ±0.003mm through micro machining and in-house CMM checks.
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Large Parts
Parts up to roughly 1000mm in a single setup via large part CNC machining.
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Shafts and Pins
Slender, high-precision custom shafts and pins produced on Swiss-type turning.
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Gears and Drive Parts
Custom drive and transmission components through dedicated gear machining capacity.
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Hardened Features
Features standard cutting tools can't reach are cut with EDM, then ground after heat treatment.
Common Challenges We Handle
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Nickel Superalloys
Inconel 718 parts for high-temperature, high-corrosion applications run through dedicated Inconel machining.
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Ultra-Clean Fluid Paths
Fluid-path components for semiconductor and medical fluid handling are covered under ultra-high purity fittings.
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Fit-Critical Titanium
Ti-6Al-4V validated for fit-critical assemblies, machined through our Grade 5 titanium process.
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Customs Surprises
Incoterms, HTS classification and duty payment are agreed before production starts, so customs costs land where you expect them.
Certified Quality from China
TUV audited QMS with IQC, IPQC, FAI, OQC, SPC and CAPA on every order.
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AS9100DAerospace Quality Management System
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ISO 9001:2015Quality Management Standard
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ISO 13485Medical Devices Quality Management
50+ Metals and Engineering Plastics
Grade pages cover machinability and typical part types. Pick the alloy or plastic that fits your application and tolerance.
Engineering Plastics
Not seeing your material? Browse all CNC machining materials
View AllFrom Quote to Delivery
Frequently Asked Questions
Cost, tolerances, lead times and IP protection when sourcing machined parts from China.
Get a CNC Machining China Quote
Send your drawings and get a quote reviewed by an engineer before you commit to a production run, with a QMS documented at every stage.
- No minimum order quantity
- Prototype turnaround as fast as 3 days
- Itemized quote within 6 hours, most parts
- First article inspection through final OQC
- NDA available before you share files
Ready to Scale Your Project?
Get started with a stable process and controlled quality. Let's discuss your project.
