CNC machining factory · Dongguan, China · Since 2017

China CNC machining for automation & machine builders

Meili Machining makes the custom parts that go into automation cells, assembly systems, and packaging machines. Milled and turned in our own factory, finished, inspected, and delivered to your door. Send one drawing or the whole project package.

Send Drawings for Quote Supplier Information
Raymond Liang
Raymond Liang, Co-founder & Technical Sales Manager
Your contact for quotes and drawing questions · LinkedIn
Aluminum part clamped on a 3+2 rotary table inside a Meili machining center
3+2 machining · Dongguan factory
Three finished machined aluminum parts with pockets and mounting holes
~23
CNC machines & lathes in-house
3+2
Multi-face machining in-house
20 pcs+
Unit cost drops sharply. Main range up to 10,000
Remake
At our cost if off-drawing
Parts we make

CNC machined parts for automation and packaging equipment

Recent parts from our shop floor, photographed as they left inspection. Milled, turned, and finished to the customer's drawing.

Send Your Drawing
Black POM round part with pockets, bores, and threaded holes on several faces

Multi-face plastic parts

Pockets, bores, and threads on several faces, machined from black POM.

3+2 millingPOM
Three turned stainless steel shafts with threads, grooves, and a milled cross block

Turned shafts with milled features

Threads, grooves, flats, and cross holes, turned and milled to the drawing.

Turn + millStainless steel
Machined brass frame with windows and thin walls

Brass frames with thin walls

Windows, slots, and thin walls machined from solid in one part.

BrassThin walls
Turned pure copper cone next to two small brass fittings

Copper cones and brass fittings

Pure copper cones and small brass fittings, turned with a smooth, consistent finish.

Pure copperBrass
Aluminum parts anodized blue, red, and black, with 6061 aluminum parts nickel plated

Anodized and nickel-plated aluminum

Brackets, pulleys, and frames in color anodize, plus 6061 parts nickel plated, finished as your drawing calls out.

Color anodizeNickel plating
Mixed set of machined parts in brass, stainless steel, carbon steel, 6082 aluminum, POM, nylon, and glass-fiber reinforced plastic

Mixed-material part sets

Brass, stainless and carbon steel, 6082 aluminum, POM, nylon, and glass-fiber reinforced plastic, machined for the same order.

8 materialsTurn + mill3+2 milling

Also: sheet metal brackets and guards and plating and heat treatment, coordinated through managed partners.

One part, start to finish

One job, from aluminum block to finished part

The 3+2 part from the top of this page: a small cosmetic housing that is nickel-plated after machining, so every critical size has to be cut with room left for the plating.

Material
6060 aluminum
Quantity
1,000 pcs
Tightest tolerance
±0.01 mm
General tolerance
ISO 2768-fH
Finish
Nickel plated, Ra 0.8
Three aluminum housings being machined in a fixture on a 3+2 rotary table01

Machined in one clamping

Fixtured on a 3+2 rotary table, so features on several faces are cut without re-clamping and stay aligned to each other.

Digital micrometer reading 8.245 mm on a machined aluminum housing02

Width: 8.245 mm

Drawing: 8.25 ±0.02 mm after plating. Measured with a micrometer before the parts go to nickel plating.

Height gauge reading 1.177 mm on a machined aluminum housing03

Step height: 1.177 mm

Drawing: 1.2 ±0.02 mm after plating. Cut slightly under size on purpose, so the nickel layer brings it into tolerance.

Finished machined aluminum housing with pockets and threaded holes, ready for plating04

Burr-free, ready to plate

A cosmetic part: no burrs and no visible tool marks, because plating shows every flaw. Then nickel plated and packed by part number.

Capabilities

CNC machining capabilities at a glance

The ranges we work in every day. If your part sits near a limit, send the drawing and we'll confirm at review.

Full capabilities
1000 × 400 mm
Max milling size, 200 mm height
Ø400 × 900 mm
Max turning size, approx.
±0.01 mm
Critical tolerances, confirmed at drawing review
M1
Smallest threads, as on the housing above
Rows of CNC machining centers on the Meili Machining shop floor in Dongguan
Our machining floor, Dongguan
Part held in a CNC lathe chuck during turning
CNC turning
Machining center milling a part under coolant
Milling under coolant
Processes
3-axis milling, 3+2 multi-face milling, CNC turning, turn-mill parts
Materials
Aluminum (6060, 6061, 6082, 7075), stainless steel (303, 304, 316), carbon and alloy steel, brass, copper, titanium, engineering plastics (POM, nylon, glass-fiber reinforced)
Finishes
Anodizing including color, nickel and other plating, heat treatment, EDM, laser marking, through managed partners
Quantities
Batches of 20 to 10,000 pcs, prototypes first; one part number or a full project
Inspection
In-house CMM, micrometers, height gauges, thread and pin gauges, optical projector, roughness tester
Equipment
About 23 CNC machines and lathes in-house. Full equipment list →
Batch pricing · 20 pcs and up

From 20 pieces, your turned and milled parts cost far less

Most of the cost of a one-off part is the work before the first chip: drawing review, programming, fixturing, and proving out the first part. On one piece, that piece carries all of it. On 20, it is shared twenty ways. Ask for prices at a few quantities, for example 5, 20, and 50, and we'll quote each one.

Quote My Batch How a CNC quote is built: why batches cost less → Low-volume production: batches of 20 to 10,000 pcs →
  • Setup, programming, and first-article check paid once per batch
  • Dedicated fixtures at 20+ pieces: faster loading, identical parts
  • Repeat orders reuse the program and fixtures
Why buy direct

One factory, from drawing to delivery

No trading company in between. The people who quote your drawing are the people who machine and inspect it, so questions and schedule changes get answered at the source.

Your team talks directly to the Meili factory, with no trading company in between Trading company Your team Meili factory
01 · Send

One drawing or a whole project

STEP and PDF drawings plus your parts list, in one .zip file. 30+ part numbers is normal.

02 · Review

Risks flagged before you order

Every drawing reviewed per part number. Thin walls, plated sizes, and tight fits are raised in the quote, not after.

03 · Make

Made and inspected in-house

Machined on our own floor, finished through managed partners, then checked against your drawing. Quality process →

04 · Deliver

Labeled by part number, backed by a remake

Boxes labeled with your part numbers. Off-drawing parts are remade at our cost, freight paid both ways.

Upload a Drawing Package How complete part supply works
Raymond Liang, co-founder of Meili Machining, on the shop floor in Dongguan
Your contact at Meili

Raymond Liang

Co-founder & Technical Sales Manager · Dongguan factory

Raymond is your contact for quotes, drawing questions, and order updates. He works at the factory, so questions about your parts go straight to the people machining them.

Email Raymond LinkedIn profile
For purchasing teams

Qualifying a new supplier?

Company details, equipment, inspection tools, documents, and commercial terms are on one page. Send your NDA or supplier questionnaire and we'll complete it.

Supplier Information
Legal entity
Dongguan Meili Machinery Co., Ltd.
Established
2017, Dongguan, China
Machines
5 three-axis, 10 3+2, 8 lathes
Incoterm
DAP, delivered to your address
Payment
Bank transfer in USD, EUR, GBP and more
Language
English by email; video calls on request
Case notes

Difficult parts we made recently, with measured results

Real orders from our Dongguan factory: the problem, how we made the part, and what we measured.

SUS430 stainless motor housing with cross pins100 pcs
SUS430 stainless

SUS430 motor housings

A 10 µm band on Ø8. Micrometer readings 7.987 and 7.988 mm against 7.98–7.99.

Read the case note
Thin-wall 304 stainless steel conical ring48 pcs
304 stainless

Thin-wall 304 conical rings

Walls that distort in a normal chuck. A dedicated fixture turned in-house, two operations per ring.

Read the case note
Turned and milled TC4 titanium prototype with grooves and internal pockets30 pcs
TC4 titanium

TC4 titanium prototypes

±0.05 mm on diameters and hole positions, Ra 1.6, M2 threads and Ø1.6 mm holes.

Read the case note
All recent parts and case notes
FAQ

Questions buyers ask first

Anything else, email info@meilimachining.com.

Can you quote a full project drawing package?

Yes. Put your drawings (STEP and PDF) and your parts list with quantities into one .zip file and upload it. We review every drawing, quote per part number, and list anything that needs clarification before production.

What order quantities do you accept?

Our main work is batches of 20 to 10,000 pieces per part number. Prototypes are welcome too, mainly as the first step toward a batch, on the same machines and process. From 20 pieces the unit cost drops sharply, because drawing review, programming, and fixturing are shared across the batch. For high volumes we confirm capacity and lead time with the quote.

Do you machine the parts yourselves?

Yes. Milling and turning run on about 23 CNC machines and lathes in our own Dongguan factory. Surface finishing, heat treatment, and sheet metal are coordinated through managed partners, and we handle final inspection and packing before shipment.

How do you check part quality before shipment?

In-house inspection uses calipers, micrometers, height gauges, thread and plug gauges, an optical projector, and a roughness tester. We also run an in-house CMM for positions, profiles, and GD&T. Dimension and CMM reports are available on request. Tight tolerance CNC machining: what ±0.01 and ±0.005 mm take →

Do your prices include shipping?

Yes. Quotes include shipping to your address (DAP), so you can compare our price directly with a local supplier's. Import duties and taxes are paid by the buyer.

What happens if parts don't meet my drawing?

We remake them at our cost and pay the shipping both ways. A part is nonconforming when it doesn't meet the requirements on your drawing — dimensions, tolerances, threads, material, or finish. Features without a stated tolerance follow ISO 2768-m. Report it within 30 days of delivery with photos or inspection data, and we'll confirm and arrange the remake.

Can you sign an NDA and complete our supplier questionnaire?

Yes. An NDA is available on request before you share drawings. Send your supplier questionnaire or onboarding forms and we will complete them. Company, equipment, inspection, and commercial details are summarized on our supplier information page.

Start with one project

Send the drawings for your next machine build.

One part or a full package. We review every drawing, quote each part number with delivery included, and flag questions before production.

Send Drawings for Quote Supplier Information