A new machining centre, lathe or grinder from Japan is rarely a catalogue purchase. The model number fixes the frame; the options, the control, the tooling, the test and the packing are what you are really negotiating, and each of them is decided in Japanese, in Japan, before the machine is crated. Buyers who order from a brochure tend to find the gaps at the worst moment: at the witness test, when the test piece is not theirs, or at installation, when a part of the machine they assumed was standard turns out never to have been quoted.
This article follows the order a purchase actually runs in, and says where it tends to stop. Export control, the export file and installation each have their own article; this one hands off to them rather than repeating them.
💬 Comparing Japanese machine tools and not sure the quotations describe the same machine? Send us your part drawings and the shortlist — Sunsho Trade sources machinery from Japan and works with the Japanese side in Japanese. Tell us about the machine.
Start from the part, not from the machine
Send the seller your workpiece drawings, material, batch pattern and required accuracy before you ask for a model, because a Japanese seller will configure the machine to the part — and if there is no part, it will configure it to its own assumptions.
The most useful enquiry is not “a five-axis machining centre with a big table”. It is two or three representative part drawings, the material and its condition, the batch sizes you expect, the tolerances that actually matter, and what the machine has to do without an operator standing beside it. From that, an applications engineer can propose the axis configuration, spindle, tool capacity and fixturing, and — just as important — can tell you where the part is near the limit of the machine.
Some decisions are hard to reverse once the order is placed, so settle them in the enquiry:
| Item | What to state | What goes wrong if it is left open |
|---|---|---|
| Representative parts | Drawings, material, batch pattern, cycle target if you have one | The machine is sized for a part you do not make |
| Control and language | Which CNC control your programmers and maintenance staff already use; screen and manual language | Operators face an unfamiliar control; the manual arrives in Japanese only |
| Options | Coolant through the spindle, chip conveyor, tool magazine size, probing, tool-setter, pallet changer | Each quotation includes a different set, so prices cannot be compared |
| Automation interface | Whether a robot or loader will be added now or later, and who supplies it | The interface is missing or needs rework on site |
| Site power and air | Your supply voltage, frequency and compressed-air quality | Transformer or control changes discovered after shipment |
| Destination conformity | What marking or conformity file your country requires for machinery | The machine built for the Japanese market lacks the documentation you need |
Two of these deserve a note. Power: a machine built for a Japanese factory is wired for Japanese supply voltages, and Japan runs on both 50 Hz and 60 Hz, so the electrical specification must be written for your site, not inherited from the demonstration machine — the nameplate checks are set out in buying used equipment in Japan, and they apply to a new build in the same way. Conformity: if your country requires a specific marking or a technical file for machinery, say so in the enquiry. A seller can build to it far more easily than it can retrofit it, and the cost belongs in the quotation, not in a later variation.
Compare what each quotation includes, not the bottom line
Two quotations for the “same” model can differ by a whole chip conveyor, a tooling package, the training and the packing, so line them up item by item before you compare prices.
Japanese quotations often list a standard specification, standard accessories and options separately. The trouble is that “standard accessories” differ by seller, and several costs sit outside the machine altogether. Ask every seller to answer the same list:
- Standard accessories. Which tools, holders, levelling pads, manuals and software come in the box.
- Tooling and fixtures. Whether the quotation includes cutting tools, holders and workholding for your part, or only the bare machine.
- Programming support. Whether a CAM post-processor for your control, or a proven program for the test piece, is included.
- Test and acceptance. What the witness test covers, whether it is cut on your material, and what happens if the result is outside the agreed tolerance.
- Packing. Export packing to which standard, and whether it is included or extra.
- Warranty start. From shipment, from arrival, or from signed acceptance at your factory. The difference matters when shipping and installation take longer than planned.
- Installation and training. Included, separately priced, or not offered for your country.
The commercial lines — currency, Incoterms rule, payment schedule — need their own normalisation, which works the same way for a Japanese machine as for a Vietnamese part: see comparing supplier quotations.
Settle the export-control questions while you specify
A machine tool’s specification decides how closely the Japanese exporter must check it under Japan’s export control law, so give the end user, the installation address and the intended use at the quotation stage, not after the deposit.
Machine tools sit close to the export-control boundary because the same accuracy that serves an ordinary factory can serve weapons production. The seller’s check is keyed to what the machine can do — number of simultaneous axes, positioning accuracy and similar characteristics — and to who will use it. The mechanism, the end-use certificate and what changed in October 2025 are explained in Japan export control and the catch-all check.
The practical point for a new machine is timing. Options are where the specification moves: adding a rotary table, upgrading scales or asking for a tighter accuracy grade after the check has been done can send it back for review. Freeze the specification, then provide the end-use information in writing, in that order. If a licence turns out to be required, the timing belongs to METI, not to the seller or to us.
💬 Need the specification frozen and the end-use information prepared before the order goes in? Ask us to coordinate it with the Japanese seller.
Agree the witness test before the order, not before shipment
Write the acceptance tests, the test piece and the pass criteria into the purchase order; a witness test that is designed only when the machine is finished will test what the seller finds convenient.
A factory acceptance test in Japan — attended by you, by someone acting for you, or by live video — is the last point where a problem can be fixed by the people who built the machine, on their own floor, with their own parts. After the crate is closed, every correction costs travel. Machine tools have published test codes that both sides can name:
| What is tested | Reference that both sides can name | What to agree in the order |
|---|---|---|
| Positioning accuracy and repeatability of NC axes | ISO 230-2 | Which axes, and whether results are compared with the seller’s catalogue values or your own limits |
| Geometric accuracy of a machining centre | ISO 10791 series (e.g. Part 1 for horizontal spindles) | Which parts of the series apply to your configuration |
| Accuracy of a finished test piece on a machining centre | ISO 10791-7 | Standard test piece, your own part, or both |
| Geometric accuracy of an NC lathe or turning centre | ISO 13041 series | Horizontal or vertical spindle part; which checks |
| Your production part | Your drawing and inspection plan | Material supplied by whom, measuring method, number of pieces |
| Function and safety | Seller’s test sheet | Door interlocks, emergency stop, tool change, chip and coolant system, alarms |
Japanese test records often cite the JIS equivalents of these ISO documents; ask which edition the seller works to and whether it is identical to the ISO text. Checked on 19 October 2026 against the catalogue listings of national standards bodies; buy or borrow the text before you rely on a specific clause.
Cutting your own part is the most informative test and the one most often skipped. It needs planning: the material has to reach the seller in Japan, the program has to be written, and the fixtures have to exist. If you want it, put it in the order with a date by which you will deliver the material.
If you cannot travel, replace presence with records: video of the test, the raw measurement data rather than a summary, the measured test pieces shipped to you, and a signed list of open points. A punch list that is agreed before shipment gets fixed; one raised after arrival becomes a negotiation.
Packing, documents and what travels in the crate
Ask for the packing method, the shipping restraints and the document set in writing, because a new machine that arrives with its axes unsecured or its parameters lost costs more to recover than the packing ever saved.
A machine tool is shipped with its moving axes locked by transport brackets, its spindle protected, and its exposed metal coated against corrosion. Sea freight from Japan crosses humid climates; ask for the corrosion protection to be suitable for the route and the expected storage time on arrival. Things to confirm:
- Transport brackets and lifting points, marked and listed, with instructions for removing them. Running a machine with a bracket still fitted can damage it.
- Crate or skid design, centre of gravity and lifting marks, so the receiving port and your rigger can handle it safely.
- Shock and tilt indicators on the crate, so damage in transit can be identified and claimed.
- Container or open-top/flat-rack — large machines may not fit a standard container, which changes the freight and the port handling.
- What travels in the crate: standard accessories, spare parts ordered with the machine, levelling pads, and the manuals.
- A data backup: the control’s parameters and any test-piece programs, saved before shipment and handed over separately from the machine.
The documents should include an English operator and maintenance manual, the electrical diagrams, the parts list with part numbers, and the test records from the witness test. The export declaration, invoice and origin documents follow the sequence in export from Japan, documents and flow.
Hand over to installation with the acceptance terms already written
Installation, commissioning and training are a separate set of commitments; the machine-tool purchase only has to make sure they are written into the same order and that site acceptance is defined before the machine leaves Japan.
For a machine tool, site acceptance usually repeats part of the witness test after levelling: the same test piece or a subset of the geometric checks, measured the same way. Put that in the order, with the foundation and power requirements the seller needs you to have ready. Everything else — who installs, who commissions, training language, the spare-parts plan — is covered in installing Japanese machinery abroad.
If you are buying other production equipment from Japan at the same time, the same discipline applies with different technical checks: see our notes on injection moulding machines and presses and on packaging and food processing machinery. The wider set of industrial sourcing articles is on our industrial sourcing page.
💬 Want someone in Japan to attend the witness test and hold the records for you? Tell us the machine and the timetable.
Frequently asked questions
1. Can I buy a new Japanese machine tool directly from the maker?
Sometimes. Some makers sell abroad through their own subsidiaries or appointed distributors and will direct an overseas enquiry there; others sell through Japanese trading companies. Ask who will be responsible for the export, the test and after-sales service in your country before you decide where to place the order.
2. Do I have to attend the factory acceptance test in person?
No, but someone has to check the machine against written criteria before it is crated. A representative in Japan, a third-party inspector or a live video session can work, provided you receive the raw measurement data and the measured test pieces, and agree the open points in writing before shipment.
3. Which accuracy standard should I name in the purchase order?
Name the test codes that fit your machine — ISO 230-2 for positioning, the ISO 10791 series for machining centres, the ISO 13041 series for turning centres — and state whether results are judged against the seller’s catalogue values or limits you set. Then add your own part, measured by your own method.
4. Will the seller need to know who will use the machine?
Yes. A Japanese exporter checks the end user and end use of machine tools under Japan’s export control law, and may ask for a written end-use certificate. Provide it after the specification is frozen, because later option changes can restart the check.
5. When should the warranty start?
Negotiate it from signed acceptance at your factory where you can. If it starts from shipment, a long voyage and a slow installation can consume part of it before the machine has cut a production part.
Sources: ISO 230-2 (positioning accuracy of NC axes); ISO 10791 series, including Part 1 and Part 7 (test conditions for machining centres); ISO 13041 series (test conditions for NC turning machines and turning centres) — titles and status checked against national standards body catalogue listings on 19 October 2026.
More industrial sourcing guides: Japanese Machinery on Overseas Power: Volts, Hz and Marks · Buying Used Japanese Machinery from Abroad: The Full Route · Buying Taiwanese Machine Tools and Injection Moulding Machines. All guides by category are on the industrial sourcing page.