ISO 9001 · IATF 16949 · ISO 13485 Certified Manufacturer
Precision 5-Axis CNC Machining for Complex Parts
GreatLight machines the parts other shops turn away — ±0.001 mm tolerances, parts up to 4,000 mm, and 127 precision machines behind every order. From first prototype to volume production.
- Founded 2011 · Dongguan, China
- 127 precision machines
- ±0.001 mm achievable tolerance
- Engineering reply within 24 hours
What we do
One partner for complex manufacturing
Machining, casting, sheet metal, 3D printing and finishing under one roof — so your parts move from drawing to delivery without changing suppliers.
5-Axis CNC Machining
Simultaneous 5-axis milling for impellers, housings, airframe and robotics parts — complex geometry in one setup.
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CNC Milling
3-, 4- and 5-axis milling for prismatic parts, molds and fixtures in metal and engineering plastics.
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Rapid Prototyping
Functional prototypes and sample parts in days — CNC, 3D printing and castings with DFM feedback.
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Metal Die Casting
Aluminum and zinc die casting with in-house tooling, CNC finishing and surface treatment.
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Capabilities
Built for complex geometry, tight tolerances and scale
Our 7,600 m² facility in Dongguan runs 127 precision machines — including DMG Mori and Beijing Jingdiao 5-axis machining centers — supported by CMM inspection and a full ISO 9001 quality system. When a part is hard to hold, hard to fixture or hard to finish, it fits our floor.
- 127 precision machines, incl. DMG Mori & Beijing Jingdiao 5-axis centers
- Single parts up to 4,000 mm long
- ±0.001 mm achievable tolerance on critical features
- 100+ metals and engineering plastics, including titanium and Inconel
- CMM and optical inspection with dimensional reports
Industries
Industries we serve
Deep process knowledge for the sectors where a few microns decide whether the assembly works.
Why GreatLight
Engineered support, not just machining hours
One-Stop Manufacturing
CNC machining, die casting, sheet metal, 3D printing and surface finishing under one roof — fewer vendors, shorter supply chains, one inspection standard.
Engineering Support
DFM feedback on every quote. We review tolerances, materials and features before cutting metal — and tell you when a design change saves cost or risk.
Fast Lead Times
Prototypes from 3 days, production programs scheduled across 127 machines running day and night. Competitive freight worldwide from Shenzhen and Hong Kong.
Case studies
Recent work off the floor
Thin-walled titanium impeller — 0.008 mm profile tolerance
Five-axis simultaneous machining with adaptive toolpaths kept wall deflection under control on a 240 mm titanium impeller blank. Delivered in three weeks with zero rework.
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Engine housing program ramped to 2,000 pcs/month
From 5-axis prototype to a lights-out production cell with in-process probing — surface finish and bore geometry verified on the machine, batch after batch.
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FAQ
Questions buyers ask us first
What is your minimum order quantity?
One piece. We regularly run single prototypes alongside production programs — pricing scales with volume, but there is no minimum order to start.
How fast can I receive prototype parts?
Simple machined prototypes ship in 3–7 working days after drawing release; complex 5-axis parts typically run 7–15 days depending on material and finishing.
What tolerances can you hold?
±0.01 mm is routine across our machining fleet. On critical features — bores, bearing seats, sealing faces — we routinely achieve ±0.005 mm, and down to ±0.001 mm where the process and geometry allow.
How do I get a quote?
Send 2D drawings or 3D files (STEP, IGES, X_T, STL) through the quote form or to [email protected]. Engineering reviews every file and replies within 24 hours with price, lead time and DFM notes.
Ready to machine your complex part?
Upload your CAD files and our engineering team will come back with a quote, lead time and DFM feedback within one business day.