Machining centre mid-jobphoto to come
Milling
Housings, plates, brackets, manifolds, fixtures — one-off through series.
- 32 machining centres, 2-, 3- and 4-axis
- Up to roughly 800 × 600 × 500 mm
Our shop floor in Dalingshan, Dongguanphoto to come
Hero photo to come
Custom parts to your drawing, from one to a few thousand.
CNC machining and sheet-metal fabrication in Dongguan, China. Quote in one working day.
No CAD file yet? A dimensioned sketch or a PDF is enough to start — send it over.
2008Making parts since
40CNC machines on our floor
±0.002 mmAchievable milling accuracy
1 dayTypical quote turnaround
Everything we can make for you
Eight things happen on our own machines. Plating and coating do not — we organise those outside, and we say so below.
Lathe running a shaftphoto to come
Turning
Shafts, pins, bushings, adapters, threaded parts.
- 8 CNC lathes
- Diameters 3 mm to 250 mm
Punching machine and sheet stockphoto to come
Sheet cutting & punching
Flat parts, panels, plates and blanks from sheet.
- 4 punching machines
- Steel, stainless and aluminium sheet
Press brake with a formed partphoto to come
Bending & forming
Enclosures, brackets, chassis and frames folded from sheet.
- Forming after punching, in-house
- Steel, stainless and aluminium sheet, folded after punching
Welded frame on the benchphoto to come
Welding & assembly
Welded and bolted assemblies delivered under one part number.
- Steel, stainless and aluminium
- Machining before or after welding as the part needs
Wire EDM machine cutting a profilephoto to come
Wire EDM
Sharp internal corners and hardened material a cutter cannot handle.
- 6 wire EDM machines
- Profiles from DXF or STEP
Sinker EDM electrode and cavityphoto to come
Sinker EDM
Blind pockets, keyways and shapes with no tool access.
- 6 sinker EDM machines
- Electrodes made in-house, on our own machines
Tumbling machine with partsphoto to come
Tumbling & finishing
Deburring and stone-wash here; plating and coating coordinated outside.
- 2 tumbling machines in-house
- Anodising, plating, coating organised for you
Surface finishing — partly ours, the rest coordinated
Tumbling we do ourselves, on our own two machines. Anodising, black oxide, plating, blasting, polishing and powder coating run at shops we work with, not here. We organise it and it arrives on one invoice — we are telling you so you know where the part actually goes.
Anodising (clear / coloured / hard)Black oxidePlating (zinc, nickel, chrome)Sand and bead blastingBrushing and polishingPowder coatingLaser marking
Send a drawing, get a real price
Price, lead time and what is and is not included — usually back within one working day. No account to open, no minimum quantity.
Why buy from us
Four honest reasons. Two sections down we list what we cannot do.
1
You talk to the shop, not a broker
The machines in the list below are ours. Nobody forwards your drawing somewhere else and adds a margin.
2
No minimum order quantity
One part is a job. A thousand parts is a job. The price per part changes; whether we take it does not.
3
Four engineers read the drawing
If a feature will make the part expensive, or a tolerance is tighter than it needs to be, you hear it with the quote.
4
Your files stay with us
Drawings go to nobody outside the shop. NDA on request, before you send anything.
What stands on our floor
40 CNC machines, 12 EDM machines and a sheet-metal line, in Dalingshan Town, Dongguan. This is the whole list, not a selection.
| Qty | Machine |
|---|---|
| 32 | CNC machining centres — 13 × 4-axis, 13 × 3-axis, 6 × 2-axis |
| 8 | CNC lathes |
| 6 | Wire EDM (WEDM) |
| 6 | Sinker EDM |
| 4 | Punching machines, plus forming and welding |
| 2 | Tumbling machines (stone-wash) |
| 4 | Engineers on staff |
Machine shop — rows of machining centresphoto to come
Materials we run regularly
These are the ones always moving through the shop. If yours is not listed, that is not a no — ask.
| Material no. | Designation | Also known as |
|---|---|---|
| 3.3211 | EN AW-6061 · AlMg1SiCu | AA 6061 |
| 3.2315 | EN AW-6082 · AlSi1MgMn | AA 6082 |
| 3.4365 | EN AW-7075 · AlZn5,5MgCu | AA 7075 |
| 3.3547 | EN AW-5083 · AlMg4,5Mn0,7 | AA 5083 |
| 1.4301 | X5CrNi18-10 | AISI 304 |
| 1.4404 | X2CrNiMo17-12-2 | AISI 316L |
| 1.0038 | S235JR | St 37-2 |
| 1.0570 | S355J2 | St 52-3 |
| 1.7225 | 42CrMo4 | AISI 4140 |
| 1.2379 | X153CrMoV12 | AISI D2 |
| 2.0401 | CuZn39Pb3 | Ms58 |
| 2.0065 | Cu-ETP | C11000 |
| 3.7035 | Ti Grade 2 | R50400 |
| 3.7165 | TiAl6V4 | Ti Grade 5 |
Engineering plastics
POM-CPA6PA66PEEKPTFEPCPMMAPETPPSPEI (Ultem)PVC / CPVCUHMW-PEABSPPHDPEPSUPPSUPAI
Where the stock comes from
Bar and plate come from suppliers in Guangdong. For EN 10204 3.1 certified material we order against the certificate and pass it through with the parts — please state this with the enquiry, because certified stock has a longer lead time.
Tolerances, documents, and what we do not have
Read the right-hand column before you order. We would rather lose the enquiry than the order.
✓What you get
- General tolerances DIN ISO 2768-m
- unless your drawing says otherwise. Tighter is fine — mark it and we quote it. ±0.002 mm is achievable on milled features.
- First article measured before the run
- The first part off the machine goes on the coordinate measuring machine. If a toleranced feature is out we call you instead of cutting the rest.
- Dimensional report on request
- Actual value, nominal, upper and lower tolerance and the deviation, per measured feature, as a PDF. Ask for it with the order — it is not automatic.
- EN 10204 3.1 material certificate
- on request, with batch / heat number. Say so with the enquiry, because certified stock takes longer to arrive.
- Drawings kept confidential
- Your files go to nobody outside the shop. NDA on request.
!What we do not have
- No ISO 9001 certificate
- We are not currently certified. If your supplier approval needs the certificate, we would rather tell you now than after the order.
- No EMPB to VDA Volume 2, no PPAP
- A normal dimensional report you can have. The formal automotive first-article formats you cannot.
- No casting, forging or injection moulding
- We cut and form metal. Cast, forged or moulded parts are not ours, and we say so rather than quietly subcontracting them.
- No 5-axis simultaneous machining
- Our centres are 2-, 3- and 4-axis. A part that genuinely needs simultaneous 5-axis work is not for us, and we will say so when we see the drawing.
Measuring room — coordinate measuring machinephoto to come
How it works
Five steps, no portal to sign up for.
Step 1
Send the drawing
STEP, IGES, X_T, DWG, DXF or PDF. Tell us the quantity and the material.
Step 2
We read it before quoting
Four engineers on staff. Questions come back to you rather than guesses going into the price.
Step 3
Quote
Price, lead time and what is included. Usually within one working day.
Step 4
We make it
First article measured on the CMM before the rest of the run is cut.
Step 5
Shipping
DHL, FedEx or UPS on your account or ours, or to your forwarder in Shenzhen.
Frequently asked questions
What files can I send?
STEP, IGES, X_T, X_B, DWG, DXF or PDF. A 3D model plus a drawing with the tolerances marked is the fastest route to an accurate price. If all you have is a PDF drawing, send it — we will come back with questions rather than guess.
How small an order will you take?
One part. There is no minimum order quantity. The unit price obviously falls with quantity, but a single prototype is a normal job here.
How long does a quote take?
Usually one working day. We are in Dongguan, GMT+8, and read email from 08:00 to 23:00 Monday to Friday, so European and North American enquiries are normally answered by the time you are back at your desk.
How tight a tolerance can you actually hold?
±0.002 mm is achievable on milled features — not on every feature of every part. Mark the tolerances that matter on the drawing. Anything unmarked we work to DIN ISO 2768-m.
Are you ISO 9001 certified?
No. We are not currently certified, and we would rather say that plainly than let you find out during supplier approval. What we do have is a measuring room, first-article inspection before every production run, and a dimensional report on request.
Do you actually make the parts, or subcontract them?
Machining and sheet-metal work happens in our own shop in Dalingshan, Dongguan — the machine list below is our floor. Surface finishing is the exception: tumbling is ours, while anodising, plating, blasting and powder coating run at shops we work with. We organise that and it comes on one invoice, and we tell you so you know where your part goes.
Can you ship to my country?
Yes — DHL, FedEx or UPS, on your account or ours. If you use a forwarder in Shenzhen or Hong Kong we deliver there instead.
Will you sign an NDA?
Yes, and before you send anything if you prefer. Drawings and models go to nobody outside the shop either way.
Talk to us
Send the drawing and the quantity. If something is unclear we ask rather than guess.
- eileen@gymachining.com
- Phone / WhatsApp
- +86 137 9012 4916
- Address
- 2nd Floor, Hongfu Building, No. 45 Lianma Road,
Dalingshan Town, Dongguan, Guangdong 523129, China - Hours
- Mon–Fri 08:00–23:00 Dongguan time (GMT+8)
- Quote turnaround
- Usually one working day