Vetted Machining Suppliers in China
Machining suppliers should prove quality before you commit: DEK holds ±0.005 mm on general CNC work with stage-by-stage inspection records. Every drawing is reviewed by an engineer, with no MOQ.
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20+
Years Machining
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98.6%+
On-Time Delivery
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2,300+
Global OEM Clients
A CNC Machine Shop in China Built for Global OEMs
DEK is a China-based CNC machining company that answers the buyer’s core question with documentation: certified quality systems, inspection records and direct-factory pricing for aerospace, medical, robotics and automotive programs.
Send 2D/3D drawings (STEP, STP, IGES or DWG) with target material, tolerance and volume. An engineer reviews the file directly, and one supplier carries the part from prototype to production without a vendor handoff.
Why OEMs Shortlist DEK
A few numbers carry more weight than a capabilities page full of adjectives. Here is what separates DEK from a directory listing.
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Production-Scale Volume
1.2M+ critical parts machined annually: a shop running production volume, not a job shop dabbling in one-off work.
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On-Time Delivery
A 98.6%+ on-time delivery rate, the metric that predicts whether your program stays on schedule once materials and inspection queues get involved.
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Experienced Leadership
The Factory Director has 17 years in the industry, the Engineering Director 14+ years and the Quality Director 23 years of experience.
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Dedicated Account Contact
A named contact tracks your job from RFQ through shipment and carries part history and revisions, so re-orders never restart from zero.
Engineering Review at Intake
Quotes are not generated by a cutting-time calculator. An engineer who programs the part checks GD&T, thin walls, undercuts and tolerance stacks, then flags DFM issues before you commit to a price.
What to Check in Machining Suppliers
Process breadth, tolerances, quality stages and lead times: the data to check before shortlisting any overseas supplier.
Direct Factory vs. Other Sourcing Options
Choose a direct factory when you need documented quality and no-MOQ flexibility between prototype approval and full production. See contract machining.
| Criteria | This ProcessDEK direct factory | Marketplace platform | Domestic quick-turn shop |
|---|---|---|---|
| Pricing | Direct factory, no markup | Markup for aggregating network | Built around a minimum batch |
| Who machines | Same named team | Whichever shop is free | In-house |
| Quoting | Engineer-reviewed drawing | Speed messaging | Minimum-batch pricing |
| Minimum order | No MOQ | Minimum batch structure | Minimum batch structure |
| Point of contact | Dedicated account manager | Marketplace listing | In-person visits |
Industries We Support
Aerospace, medical devices, robotics and semiconductor programs each get the tolerance, documentation and material control their sector requires.
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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
Typical Parts & Challenges We Solve
From gearbox housings to micro components, these are the part types and risks buyers bring to DEK most often.
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Gearbox & Actuator Housings
Machined to ±0.005 mm fit-critical tolerance for joint and drive assemblies. See robotics machining.
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Brackets & Motor Mounts
Airframe brackets and motor mounts in lightweight materials for unmanned platforms. See drone machining.
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Micro Precision Components
Sub-10 mm parts held to ±0.003 mm; Swiss lathes keep slender parts steady under cutting load. See Swiss turning.
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Semiconductor Fixtures
Precision fixtures and chamber components where consistency across repeat batches matters. See semiconductor.
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Complex Multi-Face Parts
5-axis milling holds ±0.01 mm profile control on parts that would otherwise need multiple setups. See complex parts.
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Field Equipment Parts
Hydraulic fittings, gearbox housings and wear plates for off-highway builders. See agriculture parts.
Common Challenges We Handle
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Hard-to-Machine Alloys
Validated on Ti-6Al-4V, Inconel 718, 17-4PH and 316LVM, materials where poor practice shows up as chatter, drift or tool failure. See superalloys.
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Process Drift Mid-Batch
IPQC checks during the run catch a drifting tool or fixture mid-batch, and SPC flags variation on repeat-run parts.
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Wrong-Alloy Stock
IQC inspects raw material and purchased components before anything touches a machine, catching out-of-spec stock before it is cut.
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Unrealistic Tolerance Stacks
Engineering review surfaces undercuts, unreachable features and stacks beyond process capability before you commit. See undercut guide.
Certified Quality, Audited by TUV
ISO 9001, ISO 13485:2016 and AS9100D, enforced stage by stage on every production 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 & Plastics, In-House Finishes
DEK machines over 50 metals and engineering plastics, so one supplier covers your full bill of materials.
Surface Finishes
Engineering Plastics
Need another grade or finish? Browse all machining materials
View AllFrom RFQ to Shipped Parts
Buying FAQs
Straight answers on cost, lead times, file formats and order quantities.
Request a Quote From Our Machining Team
Evaluating machining suppliers for an upcoming program? Send your 2D or 3D drawings and an engineer reviews them, not an automated tool.
- Engineer-reviewed quote with DFM feedback
- No minimum order quantity
- Prototypes in 3 days
- FAI and CMM reports on first runs
- STEP, STP, IGES or DWG accepted
Ready to Scale Your Project?
Get started with a stable process and controlled quality. Let's discuss your project.
