01
A wall too thin for the material
A 0.6 mm aluminum wall on a 80 mm pocket will chatter and bow. The machinist slows the passes, and the part still comes off with a taper. Redesign the rib or accept a thicker wall before the first cut.
Shop Floor Reference
Machinist Resources for Everyday Shop Work
Reference notes we hand to engineers and machinists: which alloy to pick, where a thin wall will move, how a setup should be fixtured, and what information shortens the quote-to-ship path.
±0.005 mm toleranceRa 0.2–0.8 μm finishes127 CNC machinesFrom 1 part to 10,000+
2011Machining since
127High-precision CNC machines
±0.005 mmHoldable tolerance
99.99%Qualification rate
Where projects lose time
Four failures we see on incoming drawings
02
One tolerance called on every dimension
When a general note says ±0.05 mm across the whole print, the shop inspects everything to the tightest call. Cost and cycle time follow the tightest dimension on the sheet, not the average one.
03
A datum that cannot be reached in setup
If datum B sits on a face the vise jaws cover, the operator has to transfer the part to a second op. Extra setups add hours, and each one adds a fresh chance for stack-up error.
04
A finish spec with no process behind it
Ra 0.4 μm on a deep pocket means a small tool, light passes and a long run. Specifying the finish without the surface area it applies to usually pushes the quote up more than the geometry does.
What we publish
Reference material written from the machines, not from a catalog
The notes below answer the questions that arrive with drawings.
Alloy and process picking
Match the material to the cut before you match it to the price
Duplex 2205, 17-4PH and 6061-T6 behave nothing alike at the spindle. Duplex work-hardens fast, so a light finishing pass with a dull edge will rub instead of cut. 17-4PH in the H900 condition is stable but abrasive. 6061-T6 cuts fast and holds a wall better than most buyers expect.
We list the alloys we run every week and the ones where a phone call saves a redesign. That list is shorter than a distributor catalog and more useful on a Monday morning.
- 1Aluminum6061, 6061-T6, 2024, 5052, 5083, 6063, 6082, 7075, ADC12
- 2Stainless303, 304, 316, 316L, 420, 430, 431, 440C, 17-4PH (SUS630)
- 3Steel and titanium1018, 1045, 4130, 4140, 4340, A36, TA1, TA2, TC4, Inconel
Setup and tolerance
Fewer setups, tighter results
A part that needs four sides machined in three vises will drift. On a 5-axis center we can reach five faces in one setup, which keeps the datums where the print put them. The 16 simultaneous 5-axis centers in our shop carry most of that work.
Tolerance is a budget, not a wish. We hold ±0.005 mm when the drawing needs it, and we say so when a dimension does not. Customers who spend that budget on the three faces that mate get a better part for the same money.
- 1One-setup accessFive faces, datums stay on the print
- 2InspectionRaw material check, in-process monitoring, final inspection
- 3ReportsDimensional reports on request
Quick reference
Tolerance and finish calls by feature
Numbers we can hold on the machines listed below.
| Feature | Practical call | Note |
|---|---|---|
| Mating bore, Ø20–80 mm | ±0.005 mm | Boring bar, single pass finish |
| Pocket floor | Ra 0.8–1.6 μm | Standard milling finish |
| Sealing face | Ra 0.2–0.8 μm | Fine pass, no hand polish |
| As-machined surface | Ra 1.6–3.2 μm | No finish operation called |
| Wall thickness, aluminum | 1.0 mm and up | Below 0.8 mm, expect chatter |
| Wall thickness, stainless | 1.5 mm and up | Duplex needs more |
| Laser marking | 1.5 mm min char height | Logo and part number |
What we run
Processes behind these notes
01
5 Axis CNC Machining
Five faces in one setup on 16 simultaneous 5-axis centers. Complex housings, impellers, angled ports.
02
4 Axis and 3 Axis Milling
12 four-axis mills and 27 three-axis machines for prismatic parts and plate work up to 4,000 mm.
03
CNC Milling & Turning
16 mill-turn centers for shafts, fittings and parts that need both turning and milling in one cycle.
04
Rapid Prototyping
Machined prototypes and 3D printed parts for form and fit checks before the tool is cut.
05
Sheet Metal Fabrication
Brackets, enclosures and chassis that pair with machined components on the same assembly.
06
Part Surface Finishing
Anodizing, plating, powder coating, bead blasting, brushing and laser marking.
Machine range
Travel and capacity on the floor
Pick the envelope that fits the part, not the other way round.
| Machine group | Count | Travel or size |
|---|---|---|
| Simultaneous 5-axis | 16 | Ø400 mm rotary table |
| Four-axis mills | 12 | 600 × 600 × 600 mm |
| Three-axis machines | 27 | 750 × 1,150 × 550 mm |
| Mill-turn centers | 16 | Turned and milled in one cycle |
| Large travel | — | 4,000 × 400 × 150 mm |
| Maximum part size | — | 4,000 mm maximum processing size |
Why this shop
What the numbers say
15Y
Since 2011
Fifteen years on the same floor in Dongguan, with a Singapore plant for regional delivery.
±0.005
Tolerance
Held on mating features and bores, verified before the part leaves the machine.
12H
Quote turnaround
Quotation and free DFM analysis within 12 hours of a usable drawing.
24H
Production start
Production can start within 24 hours once the drawing and material are settled.
3–5D
Shipping window
Parts ship in 3–5 days on standard runs. Historical late-delivery probability below 2%.
100%
Inspection
Every part inspected before shipment. Reports on request.
7,600 m²Manufacturing space
3Wholly-owned plants
150Technicians
1Minimum order quantity
Where the notes get used
Industry requirements and what we deliver
Aerospace
Light, stiff housings with tight bore alignment.
- ±0.005 mm
- 5-axis one setup
Automotive & EV
Battery and drivetrain parts in volume runs.
- IATF 16949
- 1 to 10,000+
Medical Devices
Clean finishes and documented inspection.
- Ra 0.2–0.8 μm
- ISO 13485
Robotics & Automation
Thin-wall end effectors that hold shape.
- Thin-wall setups
- 100% inspection
FAQs
Questions that arrive with drawings
What is the smallest wall you can machine?
In aluminum, 1.0 mm is a practical floor for a wall that has support at both ends. Below 0.8 mm the tool pressure pushes the wall instead of cutting it, and you get taper plus chatter marks.
In 304 or 17-4PH, plan on 1.5 mm. Duplex 2205 needs more again because it work-hardens at the cut. If the design truly needs 0.5 mm, we look at the part as a whole: rib placement, depth of cut, and whether a fixture can back the wall up.
How do I decide between 6061-T6 and 7075?
6061-T6 is the default for housings, brackets and plates. It cuts clean, welds, anodizes well and holds a wall.
7075 gives roughly twice the yield strength and machines to a better finish, but it costs more and anodizing changes its color less predictably. Use 7075 when the part sees real load or needs a thin section in a stiff frame.
When does 5-axis pay for itself?
When the part has features on more than three faces, or when a compound angle would need a sine plate and a second setup on a 3-axis machine.
Every extra setup adds re-fixturing error. If the print has datums on two faces and a tight true position between them, one 5-axis setup usually costs less than three 3-axis setups plus the rework.
Can you mark a logo on the part?
Yes, by laser marking or engraving. Minimum character height is 1.5 mm for legible text.
Send the artwork as vector or a DXF. We check stroke width against the marking depth before the run, because thin strokes in a deep engrave fill in and turn into a smear.
What do you need to quote a part in 12 hours?
A STEP or parasolid model, the 2D drawing with tolerances and datums, the material and finish, and the quantity. If the drawing is missing, we can work from the model and mark the dimensions we assume.
Free DFM analysis comes back with the quote. We flag thin walls, unreachable datums and finishes that need an operation the print did not list.
Do you run one-off parts?
Yes. There is no minimum order quantity, from a single prototype to runs over 10,000 pieces.
One-off work is quoted the same way as production: material, setups, machining time, finish and inspection. The difference is that fixture cost spreads over one part instead of thousands, and we tell you that number up front.
How do you handle confidential drawings?
Uploads are secure and confidential. An NDA is available on request before you send files.
We do not share drawings or part photos outside the project team, and we do not use customer parts in marketing material.
Which finishes can change a dimension?
Anodizing adds a thin oxide layer, hardcoat adds more. Electroless nickel and plating also build up. If a plated surface is a mating bore, the pre-plate dimension has to be undersized.
Tell us which surfaces are functional and which are cosmetic. Bead blasting and tumbling round edges slightly, which matters on a sealing face but not on a bracket.
Send a drawing and get a real answer
Quotation and free DFM analysis within 12 hours. No minimum order quantity, and every part inspected before it ships.
12-hour quote100% inspectionNo MOQNDA on request
