GreatLight machines stainless steel, aluminum, titanium and tool steel in Dongguan. 127 machines, 16 simultaneous 5-axis centers, ±0.005 mm tolerance, and DFM feedback inside 12 hours of your upload.
Most of these do not appear in the RFQ. They appear on the drawing review, the first article, or the dock.
A 1.2 mm wall holds on the first article, then thins once the cutter wears and the shop speeds up. By batch three the mating face no longer seats and the assembly leaks. We measure wall thickness in process, not just at final inspection.
Undercuts and angled ports cannot be reached from three directions. A shop that quoted 3-axis pricing comes back with a redesigned part or a hand-finishing step. Both cost you weeks and change the drawing.
Two parts each held at ±0.05 mm can stack to ±0.1 mm at the joint. On a bearing bore or a spigot that means press fits that bind or rattle. The fix starts at the drawing, not the machine.
Ra drifts after anodizing or bead blasting, and the cosmetic panel no longer matches the sample. Finish is a process parameter, not a checkbox. We specify grit, bath and masking before the first cut.
Turning, milling, mill-turn and finishing under one roof in Dongguan.
Angled ports, undercuts and sculpted pockets need the tool to approach from more than three directions. Our 16 simultaneous 5-axis centers and 16 mill-turn centers cut those features in one setup, so the datum never moves between operations.
That matters on parts like impellers, manifolds, surgical handles and robot end-effectors. When a feature can only be reached by repositioning the part four times, the stack-up grows with every re-clamp.
Holding tight tolerance across a run means controlling temperature, tool wear and fixturing, not just buying a good machine. We check raw material before cutting, monitor critical dimensions in process, and run 100% inspection before shipment.
We also tell you when a feature cannot hold the number you asked for. A deep bore at 20:1 length-to-diameter will drift with tool deflection. Better to hear that in the DFM report than at the first article.
Use this to sanity-check the route before quoting.
| Part feature | Best route | Why |
|---|---|---|
| Angled ports, undercuts | 5-axis | Reached in one setup, no re-fixturing |
| Long shaft with flats | Mill-turn | Turning and milling on one center |
| Flat plate, drilled holes | 3-axis | Fastest and cheapest route |
| Prismatic housing, 4 sides | 4-axis | Indexed faces without moving the part |
| Frame up to 4,000 mm | Large travel mill | 4,000 × 400 × 150 mm envelope |
| Thin wall under 1 mm | Review first | Deflection risk; may need a support design |
Metal cutting, finishing and prototyping from the same plant.
Simultaneous 5-axis for angled features, sculpted surfaces and parts that would need four setups otherwise.
3-axis, 4-axis and mill-turn centers covering flat plates to turned shafts with cross-drilled holes.
One-off and small-batch metal parts, no minimum order quantity, shipped in 3–5 days after cutting starts.
Anodizing, plating, powder coating, bead blasting and laser marking, specified before the first cut.
Enclosures, brackets and chassis when the part is better folded than cut from solid.
For higher volumes where a casting plus finish machining beats cutting the whole shape from bar.
Numbers we work to every day.
| Item | Range |
|---|---|
| Machines | 127 high-precision CNC machines across 3 plants |
| 5-axis centers | 16 simultaneous 5-axis machining centers |
| Mill-turn centers | 16, with Ø400 mm rotary table |
| Maximum part size | 4,000 mm; travel 4,000 × 400 × 150 mm |
| Aluminum | 6061, 6061-T6, 2024, 5052, 5083, 6063, 6082, 7075, ADC12 |
| Stainless | 303, 304, 316, 316L, 420, 430, 431, 440C, 17-4PH |
| Steel | 1018, 1045, 4130, 4140, 4340, A36, tool steel |
| Titanium & special | TA1, TA2, TC4, Inconel, magnesium AZ31B / AZ91D |
| Copper & brass | C101, C103, C110, beryllium copper, C36000 |
| Plastics | ABS, PC, PMMA, POM, PA, PEEK, PP, HDPE, carbon fibre |
Six things that decide whether a run goes smoothly.
Fifteen years on turned and milled parts, three wholly-owned plants, 7,600 m² of floor space.
±0.005 mm achievable, with in-process checks on the dimensions that decide the fit.
Upload a STEP file and get pricing plus manufacturability feedback within 12 hours.
Once the drawing and finish are locked, cutting can begin the next day.
100% inspection before shipment, with raw material, in-process and final checks.
From a single prototype to 10,000+ part runs on the same process.
Aluminum housings need flat mating faces and consistent anodized color across the run.
Sealing faces and bore positions must repeat, because a leak is a warranty claim.
Small stainless components with fine bores and no room for burrs or rough edges.
Frames up to 4,000 mm with drilled and tapped patterns that must line up in assembly.
Send STEP, STP, IGS or X-T for 3D, and DXF, DWG, PDF or TIF for 2D drawings. We work in SolidWorks, Pro/Engineer and AutoCAD on our side.
A 3D model plus a 2D drawing with critical dimensions and finish callouts gives the most accurate quote. If you only have a model, we will flag the dimensions that need a tolerance call.
±0.005 mm is achievable on features we agree on during DFM review. It depends on material, feature geometry and how many setups the part needs.
Deep bores, thin walls and long unsupported sections will drift. We tell you which features cannot hold the number before cutting starts, not after.
Go 5-axis when a feature cannot be reached from three directions, or when re-fixturing the part three or four times would push the tolerance stack past the fit.
If the part is a flat plate with drilled holes, 3-axis is faster and cheaper. There is no reason to pay for multi-axis work you do not need.
Anodizing in clear, color, hardcoat and conductive grades. Electroless nickel, zinc, silver and gold plating. Powder coating and black oxide.
Bead blasting, tumbling, brushing and polishing. Laser marking and engraving with a minimum character height of 1.5 mm.
Uploads are secure and confidential. We can sign an NDA before you send drawings.
Your files are used for quoting and manufacturing only. They are not shared outside the project.
Quotation and free DFM analysis come back within 12 hours. Production can start within 24 hours after you approve.
Most parts ship in 3–5 days. The historical late-delivery probability is below 2%. Longer times apply when finishing or outsourced treatments are involved.
No minimum order quantity. We run from one prototype to 10,000+ part runs.
For a single part, expect to pay for setup time, since programming and fixturing do not shrink with batch size. That cost is spread across the run as quantity grows.
Every order gets 100% inspection before shipment, covering raw material check, in-process monitoring and final inspection.
Measurement reports from CMM, tool microscope, height gauges and roughness equipment are available on request. Ask for them at the quote stage so we build the measuring time into the plan.
Upload your STEP file and we will come back with pricing, lead time and DFM notes. No minimum order quantity, 100% inspection before shipment.
12-hour quote100% inspectionNo MOQNDA on request
Trusted by engineers and manufacturers worldwide
Upload your 3D model or 2D drawing and get a quotation with a free DFM analysis. Maximum processing size 4,000 mm.
CNC Metals 13 grades
CNC Plastics 10 grades
Machines & processes 12 options
Surface & post-processing 10 options
Material: not selected Machine: not selected Post-process: not selected
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