01
The drawing says ±0.01 mm, the parts do not
A shop quotes tight tolerances, then measures with calipers and ships. Bores come back oval, hole positions drift between parts, and you spend a week sorting a batch instead of assembling it.
Metal Parts, Machined to Drawing
Precision CNC Metal Machining – From Prototype to Production
We machine metal parts to ±0.005 mm on 127 CNC machines, from a single prototype to 10,000+ piece runs. Send a drawing and get a quote with DFM feedback within 12 hours.
±0.005 mm tolerance16 five-axis centersNo MOQ3–5 day shippingISO 9001:2015NDA on request
127High-precision CNC machines
±0.005 mmAchievable tolerance
3–5 daysTypical part shipping
99.99%Qualification rate
Where parts go wrong
Four problems that show up on the shop floor
These are the failures we hear about most from engineers moving a part from CAD to metal.
02
Setup changes between prototype and production
The prototype shop and the production shop are different vendors. Wall thicknesses shift, datums move, and the first 200 parts from the new tooling no longer fit the subassembly you already signed off.
03
Thin walls and deep pockets move under the cutter
A 1.5 mm wall in 6061 looks fine in CAD. On the machine it deflects, chatters, and comes out with a taper. Nobody catches it until the parts are anodized and the shadow line shows every pass.
04
The finish is called out but never verified
Ra 0.8 μm on a sealing face is not the same as a bead-blasted cosmetic panel. If the shop has no profilometer and no inspection report, you find out at leak test or at the customer.
How we hold the tolerance
One process from first article to 10,000 pieces
The same machines, the same inspection plan, and the same team run your prototype and your production order.
Machining strategy
Five-axis setups that cut the number of times a part moves
Complex metal parts usually fail on setup count, not on spindle speed. Every time a part is unclamped and re-fixtured, datums shift and the tolerance stack grows. Our 16 simultaneous five-axis machining centers cut housings, brackets, and impellers in one or two setups instead of five.
For parts that fit a Ø400 mm rotary table, four-axis work on our 12 four-axis mills handles the same geometry with lower hourly cost. We pick the machine based on your tolerance callouts and feature access, not on what happens to be free.
- 1One-setup 5-axisUndercuts, angled ports, and contoured faces machined without re-fixturing.
- 24,000 mm envelopeLarge frames and rails up to 4,000 × 400 × 150 mm on the long-travel machines.
- 3Mill-turn for round parts16 mill-turn centers combine turning and milling to avoid a second operation.
Inspection
Measured before it ships, not after it fails
Tolerance means nothing without a measurement plan. We check incoming bar stock, monitor critical dimensions in process, and run a final inspection on 100% of parts before they leave the floor. Reports are available when your quality file needs them.
When a callout cannot be verified with a caliper, we say so at quoting. A true position of Ø0.05 mm or a Ra 0.2 μm surface needs CMM time and a profilometer, and that time has to be in the price from the start.
- 1Raw material checkCertificates reviewed against the alloy you specified before cutting starts.
- 2In-process monitoringFirst article plus scheduled checks on dimensions that tend to drift.
- 3Final 100% inspectionEvery part measured or gauged; documented results on request.
Choosing a process
Which machining route fits your part
Use this to decide what to ask for before you send drawings.
| Part situation | Recommended route | Why |
|---|---|---|
| Prototype, 1–20 parts, no tooling | 3-axis or 4-axis milling from bar | Fast setup, no tooling cost, easy revisions |
| Angled faces, undercuts, 2+ setups | Simultaneous 5-axis | Fewer setups, tighter true position |
| Shafts, bushings, threaded bodies | Mill-turn center | Turning and milling in one clamping |
| Large frame, long rail | Long-travel mill, 4,000 mm | Fits the envelope without segmenting |
| Thin wall under 2 mm | 5-axis with light finishing passes | Less deflection than repeated re-fixturing |
What we run
Machining and finishing services on one floor
Metal cutting is the core. Secondary operations stay in-house so nothing gets lost between vendors.
01
5 Axis CNC Machining
Simultaneous five-axis work for contoured, angled, and undercut features in one or two setups.
02
4 Axis and 3 Axis Machining
Lower-cost routing for prismatic parts, plates, and brackets where three faces are enough.
03
CNC Milling and Turning
Milling, turning, and mill-turn centers for round and mixed-geometry parts.
04
Rapid Prototyping
Machined prototypes in your production alloy so testing reflects the real material.
05
Sheet Metal Fabrication
Bent, punched, and welded assemblies when a machined part is the wrong answer.
06
Surface Finishing
Anodizing, plating, powder coating, bead blasting, brushing, polishing, and laser marking.
Capability range
Materials, sizes, and finishes
Values below are what we quote against. If your part sits outside them, ask before assuming.
| Item | Range | Notes |
|---|---|---|
| Aluminum alloys | 6061, 6061-T6, 2024, 5052, 7075, ADC12 | Most common for housings and brackets |
| Stainless steel | 303, 304, 316L, 17-4PH, 440C | 303 for machinability, 316L for corrosion |
| Steel | 1018, 1045, 4130, 4140, A36, tool steel | Pre-hardened grades available |
| Titanium and special | Ti-6Al-4V, TA1, TA2, Inconel, AZ31B | Slow feeds, higher cost per part |
| Copper and brass | C101, C110, C36000, beryllium copper | C36000 for fast turning |
| Plastics | POM, PEEK, PC, PMMA, ABS, HDPE | PEEK for high-temperature parts |
| Tolerance | ±0.005 mm (±0.0002 in) | Feature and material dependent |
| Surface finish | Ra 0.2–3.2 μm | As-machined to fine finish |
| Maximum size | 4,000 × 400 × 150 mm | Long-travel machines |
| Order quantity | 1 to 10,000+ parts | No minimum order quantity |
Why engineers keep the file here
Six numbers that decide the vendor
Nothing here is a slogan. Each line is something you can ask us to prove on your order.
15Y
Machining since 2011
Fifteen years of metal cutting, three wholly-owned plants, and a 7,600 m² floor in Dongguan plus a Singapore site.
127
CNC machines on site
16 simultaneous five-axis, 12 four-axis, 27 three-axis, and 16 mill-turn centers. Capacity is not subcontracted.
±0.005
Millimeters, not promises
Our quoted tolerance floor is ±0.005 mm (0.0002 in) where the feature and material allow it.
12H
Quote and DFM in half a day
Drawings sent during the working day get a quotation and a free DFM analysis within 12 hours.
99.99%
Qualification rate
Across shipped orders. Every part is inspected before it leaves, not sampled.
<2%
Historical late-delivery rate
Below 2% over our order history. We still give you a dated schedule in writing.
7,600 m²Manufacturing space
150Technicians on staff
4ISO certificates held
3Plants, Dongguan and Singapore
Industry requirements
What each sector demands, and what we deliver
Aerospace brackets
Lightening pockets and tight hole patterns in 7075 and Ti-6Al-4V, with full dimensional reports.
- ±0.005 mm
- 5-axis one setup
- Ti-6Al-4V
Automotive and EV fixtures
IATF 16949:2016 process control for brackets, housings, and test fixtures that go into builds.
- IATF 16949
- Ra 1.6 μm
- 10,000+ runs
Medical instrument parts
ISO 13485:2016 controls, clean handling, and traceable material certificates on request.
- ISO 13485
- 316L
- 100% inspection
Robotics and automation
Low-volume frames and joint housings where the first article has to match the tenth.
- No MOQ
- 4,000 mm travel
- Anodized
FAQs
Questions engineers ask before sending a file
What tolerance can you actually hold on metal parts?
Our quoted floor is ±0.005 mm (±0.0002 in). That is not universal across every feature.
Whether it holds depends on the material, the wall thickness, the depth-to-diameter ratio of holes, and which faces can be reached in one setup. Send the drawing and we will tell you at quoting which callouts we can hold and which ones need a process change.
Do you have a minimum order quantity?
No. We run from one prototype to 10,000+ piece orders on the same floor.
The setup cost is the same either way, so a single part carries a higher unit price. That is arithmetic, not a policy. Once the fixture exists, per-part cost drops sharply.
How fast is a quote, and how fast do parts ship?
Quotation and free DFM analysis come back within 12 hours for drawings sent during the working day. Production can start within 24 hours of approval.
Typical parts ship in 3–5 days. That window covers standard metals and finishes. Hard anodizing, plating, or titanium with heavy stock removal will add time, and we say so up front.
Which metals do you machine most?
Aluminum 6061 and 7075, stainless 303 and 316L, and 4140 steel cover most orders.
Titanium Ti-6Al-4V, Inconel, and magnesium AZ31B are routine but slower. They wear tooling faster and need lighter passes, so they cost more per part. Tell us the alloy at quoting so the price reflects it.
How do you handle a prototype that has to become a production part?
We keep the same CAM programs, fixtures, and inspection plan across the transition.
That is the main reason to run both phases with one shop. You avoid the tolerance shift that happens when a second vendor re-interprets the drawing and builds new workholding.
Can you machine thin walls and deep pockets without chatter?
Yes, within limits. Walls under about 1.5 mm in aluminum need light finishing passes and often a support strategy.
Deep pockets are limited by the length-to-diameter ratio of the smallest cutter the corner radius allows. If the geometry is beyond a stable cut, we will suggest a design change rather than ship a tapered wall.
What do you need from us to quote?
A 3D model plus a 2D drawing with tolerances, material, finish, and quantity. STEP and IGES both work.
If you only have a model, send it anyway. We will flag the dimensions that need a tolerance call before we can quote them properly. Uploads stay confidential, and an NDA is available on request.
Are the certifications current?
We hold ISO 9001:2015, IATF 16949:2016, ISO 13485:2016, and ISO 27001:2022.
Ask for the certificates that apply to your program and we will send them with the quotation.
Send the drawing, get a number back in 12 hours
Upload your files and our engineers will return a quotation with DFM notes, a dated schedule, and the tolerance callouts we can hold.
12-hour quote100% inspectionNo minimum order quantityNDA on request
