Nexus CNC Machining Service Overview
This page explains what the Nexus CNC machining service overview actually covers, and which numbers you should verify before sending a purchase order. It is written for design engineers and sourcing staff who compare three or four shops and need to separate real capability from brochure copy.
Key takeaways
What to check before you commit
Compare these items across every shop on your shortlist.
| Check | What good looks like | Red flag |
|---|---|---|
| Tolerance | ±0.005 mm stated with inspection method | Tolerance promised only verbally |
| Axis capability | 5-axis for contoured or deep-pocket parts | 3-axis only, part quoted anyway |
| Maximum part size | 4,000 mm travel for long parts | Size limit not disclosed upfront |
| Lead time | Quote in 12 hours, ship in 3–5 days | Vague 'a few weeks' answer |
| MOQ | No minimum, prototype to 10,000+ | Setup fee hidden until PO stage |
| Certifications | ISO 9001, IATF 16949, ISO 13485, ISO 27001 | Certificate copies never sent |
| Inspection | 100% before shipment, reports on request | Sampling only, no report option |
| Confidentiality | Secure uploads, NDA on request | Files sent over plain email only |
When this service is the right pick
Choose it when your part needs ±0.005 mm on hard-to-reach features, runs from one piece to 10,000+, and your program matches one of the four certifications. Skip it for high-volume parts that belong in a casting or forging, and for simple 3-axis geometry that a local shop can hold in one setup.
What the Nexus CNC machining service overview covers
The Nexus CNC machining service overview describes a contract machining operation built around 127 high-precision CNC machines across three wholly-owned plants, with 7,600 m² of floor space and 150 technicians. The company was founded in 2011 and has run for 15 years, with locations in Dongguan, China and a Singapore factory at No.3 Joo Koon Circle.
The mix of machines is the part buyers should read closely. There are 16 simultaneous 5-axis machining centers, 12 four-axis mills, 27 three-axis machines, and 16 mill-turn centers. That spread matters because a shop with mostly 3-axis capacity will quote your contoured part anyway and then farm out the hard setups.
Work spans metals, plastics, and composites: aluminium grades 6061 through 7075, stainless 303 to 17-4PH, alloy steels, copper and brass, titanium TC4, Inconel, magnesium, plus ABS, POM, PEEK, and carbon fibre. Post-processing runs from anodizing and plating to bead blasting and laser marking.
The service list is wider than milling alone. It includes 5-axis, 4-axis, and 3-axis machining, milling and turning, rapid prototyping, sheet metal fabrication, 3D printing, die casting, vacuum casting, and surface finishing. For a buyer, that means one supplier can carry a program from prototype through production without re-quoting at every stage.
Which parts fit this service and which do not
The service fits parts that need tight tolerances on features that are hard to reach. Think housings with angled ports, impellers, manifolds, medical instrument bodies, EV battery components, and robot arm links. If a drawing calls out ±0.005 mm on a bore that sits at 30° to the main axis, 5-axis work is the practical route.
It also fits low-volume and mid-volume runs. With no minimum order quantity, a single prototype and a 10,000+ part run both go through the same quoting process. That suits teams who need to validate a design in metal before committing to tooling.
Large parts are in scope up to 4,000 mm of travel, with the largest machine envelope at 4,000 × 400 × 150 mm. Medium frames cover 750 × 1,150 × 550 mm and 600 × 600 × 600 mm, and compact frames cover 500 × 500 × 450 mm and 500 × 310 × 200 mm. A Ø400 mm rotary table handles round work that needs indexing.
Where it does not fit: parts that are cheaper as a casting or forging at high volume, sheet parts with no machined features, and geometries that a 3-axis machine can hold in one setup. Sending those to a 5-axis shop adds cost without adding value. Be honest about which category your part falls into before you request quotes.
Tolerance, finish, and inspection: what to ask for
Tolerance capability is ±0.005 mm, or ±0.0002 in. Surface finish options run from Ra 0.2–0.8 μm for fine work, Ra 0.8–1.6 μm for standard high-finish surfaces, and Ra 1.6–3.2 μm as-machined. Ask which finish your drawing actually needs. Specifying Ra 0.2 μm on a bracket that sits inside a chassis adds cycle time for no functional gain.
Inspection is where quotes differ most. This operation runs 100% inspection before shipment, covering raw material check, in-process monitoring, and final inspection, with reports available on request. A shop that samples instead of inspecting 100% will eventually ship a bad lot, and you will find it at your assembly line.
Ask for the inspection method, not just the number. A ±0.005 mm callout needs a CMM or comparable metrology, not calipers. If the quote does not name the instrument, the tolerance is a claim rather than a process.
Certification coverage is ISO 9001:2015, IATF 16949:2016, ISO 13485:2016, and ISO 27001:2022. Match these to your program: general industrial work needs ISO 9001, automotive and EV programs need IATF 16949, medical device work needs ISO 13485, and ISO 27001 covers information security for customer data.
Lead time, MOQ, and quote quality
Lead time breaks into three clocks. The quote clock: quotation and free DFM analysis within 12 hours. The start clock: production can begin within 24 hours. The delivery clock: parts ship in 3–5 days. Ask each supplier which clock they are quoting, because a 12-hour quote with a two-week start is not the same offer as a 12-hour quote with a next-day start.
Historical late-delivery probability sits below 2%. That is a track record number, not a guarantee, so treat it as a signal about scheduling discipline rather than a promise about your specific order.
MOQ is zero. There is no minimum order quantity, and runs scale from one prototype to 10,000+ parts. This removes the usual penalty for design changes, since a revised prototype does not trigger a new minimum.
Uploads are handled as secure and confidential, and an NDA is available on request. If your drawings carry proprietary geometry, sign the NDA before you upload, not after. It costs nothing and removes an argument later.
Seven steps to evaluate this service
Work through these in order. Each step produces a document or answer you can compare across suppliers.
- 1Send drawings and get the DFM noteUpload STEP and 2D PDF files. Expect quotation and free DFM analysis within 12 hours. Read the DFM comments before the price. They tell you more about the shop than the number does.
- 2Confirm the tolerance routeState the tightest tolerance on the drawing and ask which machine and which instrument will hold it. If the answer is ±0.005 mm by CMM, you have a process. If it is 'we will do our best', keep looking.
- 3Check the envelope against your partCompare your part size to the travel figures: 4,000 × 400 × 150 mm for large work, 750 × 1,150 × 550 mm for medium, 500 × 500 × 450 mm for compact. Parts that just fit often need two setups, which adds cost.
- 4Match certifications to your industryAutomotive and EV programs should ask for IATF 16949:2016 evidence. Medical device work should ask for ISO 13485:2016. Request current certificate copies with the quote, not after the PO.
- 5Agree the inspection scopeConfirm 100% inspection before shipment and ask what the report contains. Decide upfront whether you need raw material certs, in-process data, and final dimensional reports, and put that in the PO.
- 6Pick a finish and a material gradeName the alloy, not just 'aluminium'. 6061-T6 and 7075 machine and anodize differently. For finishes, specify clear or hardcoat anodizing, plating type, or bead blasting, and note that laser marking has a 1.5 mm minimum character height.
- 7Fix the schedule in writingWrite the three clocks into the PO: quote within 12 hours, production start within 24 hours, shipment in 3–5 days. Add the inspection and documentation requirements in the same line.
Questions buyers ask
What tolerance can this service hold on a production run?
The stated capability is ±0.005 mm, which is ±0.0002 in. That applies to features the process is set up to control, not to every dimension on every drawing.
Ask which features will be inspected to that level and which will run to a looser band. Not every dimension needs the tight number, and specifying it everywhere raises cost without improving function.
Is there a minimum order quantity?
No. There is no minimum order quantity, and work ranges from a single prototype to runs of 10,000+ parts.
This is useful during design validation, when a revision may arrive before the first part is even measured. You are not locked into a batch size.
What happens to my drawings and CAD files?
Uploads are treated as secure and confidential, and a non-disclosure agreement is available on request.
For proprietary geometry, sign the NDA before uploading. The agreement covers the files and the parts made from them.
Which materials are available?
Aluminium grades 6061, 6061-T6, 2024, 5052, 5083, 6063, 6082, 7075, and ADC12; stainless 303, 304, 316, 316L, 420, 430, 431, 440C, and 17-4PH; steels including 1018, 1045, 4130, 4140, 4340, A36, and tool steel.
Also copper and brass grades, titanium TA1, TA2, and TC4, Inconel, magnesium AZ31B and AZ91D, plus plastics such as ABS, PC, PMMA, POM, PA, PEEK, PP, HDPE, and carbon fibre.
How fast can a first article be delivered?
Quotation and free DFM analysis come back within 12 hours. Production can start within 24 hours, and parts ship in 3–5 days.
Those are three separate clocks. Confirm all three in writing so a fast quote does not hide a slow start.
Which certifications should I ask to see?
The operation holds ISO 9001:2015, IATF 16949:2016, ISO 13485:2016, and ISO 27001:2022.
Ask for the certificate that matches your program: IATF 16949 for automotive and EV, ISO 13485 for medical devices, ISO 9001 for general industrial work, and ISO 27001 where customer data security is part of the contract.
Send drawings, get a quote and a DFM note
Upload your STEP and 2D files for a quotation and free DFM analysis within 12 hours. Tell us the tolerance, material, and finish, and we will confirm the machine route before you commit.
12-hour quote100% inspectionNo MOQNDA on request
More from the shop floor
We publish setup notes, tooling trials and inspection data from the factory floor.
