Precision CNCMachiningShenzhen, China
Custom CNC parts built to your exact specifications — rapid prototypes to high-volume production runs, tight tolerances, on time, every time.
What We Do
Full-Spectrum CNC Machining Services
Every CNC machining service is backed by skilled machinists, modern 5-axis equipment, and rigorous quality control — delivered from our Shenzhen facility.
Industries
Who We Serve
Trusted by engineers in the world's most demanding sectors.
Our Work
Precision in Every Detail
How It Works
From File to Finished Part
A simple four-step process, engineered to be fast, transparent, and stress-free.
Upload Your Design
Send STEP, IGES, DXF or technical drawings. We accept all major CAD formats.
Receive a Quote
Detailed quote within 24 hours. Clear pricing, no hidden fees.
Precision Machining
Parts machined on 5-axis equipment with live QC monitoring at every stage.
Inspection & Delivery
Every part passes CMM dimensional inspection, then shipped to your door.
Materials
We Machine Almost Anything
Metals, plastics, and exotic composites — if it can be machined, we can hold tolerance on it.
About OrangeSea CNC
Precision Is Not Optional
Founded in 2013, OrangeSea CNC has grown from a two-machine shop in Shenzhen, China to a full-service precision CNC machining facility with 18 CNC machining centres, 24-hour production capability, and a team of 40+ skilled engineers. Our Shenzhen CNC machining operation ships precision parts to buyers in 40+ countries.
We serve aerospace, medical, automotive, robotics, and defence industries — customers who cannot afford anything less than perfect. As an ISO 9001:2015 certified CNC machining service provider, every order ships with full documentation: CMM reports, material certificates, and a Certificate of Conformance.
Quality & Documentation
Every Part Ships with Proof
We don't just machine your parts — we document everything. CMM reports, material certs, and conformance declarations ship with every order.
CMM Inspection
Coordinate measuring machine reports for critical dimensions. Full GD&T verification on request.
Material Certificates
Mill-original material certification with heat/lot traceability on every material batch.
Certificate of Conformance
Signed CoC confirming parts meet your drawing specifications and applicable standards.
First Article Inspection
FAI/FAIR packages for new part numbers — full dimensional verification before production release.
Project Examples
Representative Work
Anonymized examples of the types of projects we handle. Details are representative of real work but customer names are withheld.
Structural Mounting Bracket
- Material
- Aluminium 6061-T6
- Process
- 5-Axis CNC Milling
- Quantity
- 200 pcs
- Tolerance
- ±0.005 mm on critical bore fits
- Lead Time
- 8 working days
Documentation
CMM dimensional report · Material certificate · First Article Inspection (FAI)
Zero NCRs on delivery. Full FAI package accepted by customer QA without revision.
Diagnostic Instrument Housing
- Material
- Stainless Steel 316L
- Process
- CNC Milling + CNC Turning
- Quantity
- 50 pcs
- Tolerance
- ±0.01 mm, Ra ≤ 0.8 µm on sealing surfaces
- Lead Time
- 10 working days
Documentation
Material traceability cert · Certificate of Conformance · Surface finish report
Parts passed customer incoming inspection first-pass. Repeat supplier status granted.
End-Effector Chassis
- Material
- Aluminium 7075-T651
- Process
- 5-Axis CNC Milling + Anodising
- Quantity
- 30 pcs
- Tolerance
- ±0.025 mm general, ±0.005 mm on pin-hole locations
- Lead Time
- 7 working days
Documentation
CMM report · Anodise bath certification · Part-specific CoC
Dimensional accuracy confirmed in customer assembly test. Lead time met to schedule.
From the Blog
CNC Insights & Knowledge
Material guides, machining tips, and industry knowledge from the OrangeSea team.
Why OrangeSea
CNC Machining in China — Precision Parts from Shenzhen
Sourcing CNC machining from China gives engineering teams access to industrial-grade precision at a fraction of Western workshop rates. OrangeSea CNC is a Shenzhen-based CNC machining and fabrication manufacturer that has been supplying custom CNC parts to buyers across North America, Europe, and Australia since 2013. Our China CNC machining operation combines experienced operators, modern 5-axis equipment, and a rigorous ISO 9001:2015 quality system — so you capture the cost advantage of CNC machining in China without sacrificing the documentation standards your customers demand.
Shenzhen sits at the centre of China's most advanced manufacturing corridor. Our Shenzhen CNC machining facility runs three production shifts, 18 CNC machining centres, and accepts rush orders when your programme demands it. Every batch of precision CNC parts ships with a full quality package: CMM dimensional report, raw material certificate, and a signed Certificate of Conformance. Buyers who order custom CNC parts from China often worry about consistency between batches — our in-process QC protocol and part-specific documentation resolve that concern before it ever becomes a problem.
We handle everything from single CNC prototype machining jobs to production runs of 10,000+ pieces. Small-batch CNC machining starts at 1 piece, which is ideal for R&D teams validating a design before committing to full tooling. The complete CNC machining service under one roof covers CNC milling, CNC turning, laser cutting, waterjet cutting, and metal fabrication. Running your entire order through a single CNC machining China supplier eliminates the coordination overhead of multiple vendors and keeps your lead time tight.
Our CNC machining capability covers aluminium, stainless steel, titanium, brass, carbon fibre, and engineering plastics such as PEEK and Delrin. Whether you need an ISO 9001 CNC machining supplier for a medical device component, a precision aluminium CNC machining service for an aerospace bracket, or a stainless steel CNC turning service for fluid-system parts, OrangeSea CNC has the equipment, certifications, and experience to deliver. Request a free online CNC quote and our engineering team will review your drawings and respond within 24 hours.
Start Your Project
Ready to Machine
Your Parts?
Upload your CAD files and get a detailed quote within 24 hours. No hidden fees. No surprises. Just precision parts, on time.