Founded 2003ISO 9001:2015 certified Prototype to productionNDA as standard
CNC Machining · Shenzhen, China

China CNC Machining Services

Send us your drawings, and we'll price your job for exactly the tolerances you need. Rush jobs available.

±0.01 mmPrecision tolerance
10–15 daysStandard lead time
One pieceMinimum order
5-axis CNC machining center cutting an aluminum part
Watch the 60-second factory tour
Precision work to ±0.01 mm
ISO 9001:2015 & ISO 14001:2015 certified
Aerospace, automotive, medical, robotics
NDA available on every job
CNC machining factory floor
Watch the tour · Play with sound (0:59)
See Our China CNC Machining Factory

Real floor. Real machines. No stock footage.

Meet our team member Bella: she introduces you to the team and walks the workshop floor — from CNC manufacturing to quality control.

  • 0:00
    Meet the factory
    Bella walks in off the street and onto our own floor.
  • 0:12
    How a custom part is made
    Raw stock in, coolant on, chips off — on the machines that would run your job.
  • 0:22
    Industries we serve
    Aerospace, electronics, automotive, medical devices.
  • 0:32
    Where we deliver
    USA, Germany, UK, Canada, Australia and more.
  • 0:45
    Who you'll work with
    The team on camera is the team that answers your email.
Get My QuoteOne piece minimum. Your files stay confidential.
Quality Control

How does your CNC quality control work?

We check each part three times before it ships: material verification, in-process monitoring, and a final dimensional inspection against your drawing. Ask for the inspection report and you get one.

CMM inspection of a machined aluminum housing
±0.01 mmTight tolerance capability
CMM checkedCritical features
ReportsAvailable on request
What We Hold
Standard tolerance±0.05 mm
Precision work±0.01 mm
Unspecified dimensionsISO 2768-mK
Surface roughnessRa 0.8–3.2 µm
CMM measurement. First articles and critical features measured on a CMM, with height gauges, optical comparators and gauges in support.
Three-stage inspection. Material verification, in-process monitoring, and final inspection before shipment.
Documentation. First Article Inspection and dimensional inspection reports available with every order.
Get My QuoteMeasured before it ships. Recorded every time.
Materials & Finishes

Which metals and finishes can we machine for you?

Multiple metals and finishes, shot on the same part under the same light — so what you specify is what arrives.

ISO 9001:2015Certified quality management
±0.01 mmOn precision work
10–15 daysStandard lead time
No MOQSingle-piece prototypes accepted

Metals

The metals we machine, in the grades customers ask for most.

Aluminium
Aluminium6061 · 7075 · 2024
Stainless steel
Stainless Steel304 · 316 · 17-4PH
Brass
BrassC36000 · C26000
Titanium
TitaniumGrade 2 · Grade 5

Surface Finishes

The finishes we apply, from as-machined to mirror polished.

Anodised
AnodisedType II · Type III hard coat
Powder coated
Powder CoatedAny RAL color
Mirror polished
Mirror PolishedRa 0.1 µm achievable
Not sure which alloy suits the part? Send the drawing — an engineer will suggest one →
CNC Machining Lead Times from China

How to go from drawing to finished CNC parts?

Material, size and complexity set the price. Nothing else. 10 to 15 days as standard — and you get the date in writing before you commit.

Machining hall Inspection bench Finished parts Custom CNC parts
1

Upload the drawing

STEP, STP, IGES, DWG, DXF, SLDPRT or PDF, with quantity and material.

2

Review the drawing

Our engineers review it for manufacturability, tolerances and machining approach.

3

Machine the parts

3-, 4- and 5-axis machining centres, or Swiss-type turning for suitable bar stock.

4

Inspect the parts

Material verification, in-process monitoring, then final dimensional inspection.

5

Ship the parts

They leave the floor once the final inspection has passed. Worldwide delivery.

10–15 daysStandard lead time, quoted before you commit.
7 daysFastest lead time for a mini order.
FAI + ReportsFirst Article Inspection and dimensional reports available.
Get My QuoteLead time depends on part complexity and quantity.
Drawing Confidentiality

Your drawings are safe with us

An NDA is offered as standard, and your drawing is seen only by the team members working on your job.

NDA as standardOffered on every job, not on request
Named access onlyRestricted to your job team
Reviewed by engineersFor manufacturability and tolerance
Any CAD formatSTEP, IGES, DWG, DXF, SLDPRT, PDF
CNC Machining Factory in Shenzhen, Guangdong

Can customers visit our CNC machining factory?

Yes. More than 25,000 m² in Shenzhen, machining since 2003. Every photograph below is that floor — not a stock image.

25,000 m²Factory area
2003Established
ShenzhenGuangdong, China
100+Employees
3-, 4- and 5-axisMachining centres with Fanuc control.
20+ Swiss lathesBar stock up to 38 mm diameter.
Up to 3,000 mmLongest milled part on our floor.
Custom CNC Parts

What CNC Machining Parts can you produce?

From a single bracket to a complex high-precision assembly, these are the eight part families we machine most — in aluminium, stainless, brass and titanium.

Custom CNC machined parts
HousingsEnclosures & precision housings
Flanges & PlatesMounting plates and flanges
Shafts & PinsTurned shafts, axles, pins
Brackets & FramesStructural brackets and frames
Heat SinksFinned thermal components
Gears & SprocketsSpur gears and sprockets
Valves & FittingsFluid and pneumatic fittings
Mould & Die BlocksTooling and mold cavities
Get My QuoteHigh precision ±0.05 mm standard, ±0.01 mm on precision work.
FAQ

Frequently Asked Questions

Everything buyers usually ask before sending the first drawing.

How tight a tolerance can you hold?
±0.05 mm as standard and ±0.01 mm where the drawing calls for it. Critical features are measured on the CMM, and inspection reports are available on request.
What is your minimum order quantity?
One piece. We build prototypes and repeat production runs on the same machines, so scaling from one part to one thousand is seamless.
How long does delivery take?
10–15 days as standard, and 7 days for a mini order. You get the delivery date in writing before you commit. Shipping to most countries takes 3–5 days by air express.
Which drawing formats do you accept?
STEP, STP, IGES, DWG, DXF, SLDPRT and PDF. Include quantity, material, tolerance and finish requirements for the fastest quote.
How do you protect my drawings and IP?
An NDA is offered as standard on every job. Access to your files is restricted to the salesperson and the engineer working on your job — nobody else.
Can I visit the factory before ordering?
Yes. Our 25,000 m² facility in Shenzhen, Guangdong is open to customer visits. We also offer live video factory tours if you can't travel.

Get Your Quote in 24 Hours

Upload your drawing and we'll price your job for exactly the tolerances you need.

NDA available. Your files stay confidential — one piece minimum.

Talk to an Engineer Directly

Contact PersonAndy Zhang — Sales Engineer
Emailandy.zhang@zhanwin.com
Phone / WhatsApp+86 137 6038 9760
Factory AddressShenzhen Zhanwin Technology Co., Ltd., Shenzhen, Guangdong, China
Working HoursMon–Sat, 8:30–18:30 (GMT+8). Quotes within 24 hours.
Watch the Factory Tour First