CNC Machining Supplier for UK Buyers

The customs desk treats you as a third country now

Every enquiry from a UK buyer that goes wrong goes wrong here rather than in the machine shop. A supplier in Shenzhen who has shipped to Germany for ten years assumes the paperwork is the same for Manchester. It is not, and the difference is not cosmetic.

Your company needs a GB EORI number, which is separate from any EU EORI you may still hold. If the goods are going to Northern Ireland rather than Great Britain the entry runs on an XI EORI and the rules sit under the Windsor Framework, which is a different question again — we ask which one applies before quoting rather than after. Declarations go through CDS; CHIEF was retired and any forwarder still describing their system that way is telling you something.

The tariff also diverged. The UK Global Tariff is its own schedule, and while the first six digits of a commodity code still match the international HS convention, the eight- and ten-digit extensions no longer follow the EU's TARIC. If your broker sends us a ten-digit code they used for a German shipment, we will use it, but we flag it rather than assume it lands on the same duty rate.

Postponed VAT accounting is the part worth understanding

Import VAT at 20% is the number that makes UK buyers hesitate, and it is usually a misunderstanding rather than a cost. Under postponed VAT accounting you declare the import VAT on your own VAT return instead of paying it at the border and reclaiming it later. If you are VAT-registered and can recover import VAT in full, PVA costs you nothing but two boxes on a form. What it saves is the cash sitting with HMRC for a quarter.

Two conditions. Your VAT number has to appear on the customs entry as the importer of record, and your forwarder has to actually use PVA rather than defaulting to duty deferment. We have seen both go wrong, and both are fixed on your side before the shipment, not after.

On a DDP term we are the importer of record, which means we pay the 20% and then have to recover it, which in practice means it becomes a cost in the price rather than something you can reclaim. On a first order this is worth saying out loud: for a UK buyer who is VAT-registered, DDP is often the more expensive term even though it reads as the simpler one. FOB or CIF with your own forwarder frequently comes out cheaper. We quote all three and will tell you which we would pick.

UKCA and CE: what we can and cannot tell you

We machine components. We do not build, assemble or place finished machinery on the market, so the conformity marking obligation is not ours to discharge and we do not issue a UKCA or CE declaration for a machine we did not build. What we provide is the material and dimensional evidence a manufacturer needs in order to make that declaration themselves.

On whether CE is still accepted in Great Britain: the deadline for UKCA has been moved more than once and CE recognition has been extended, so any answer written on a supplier's website is out of date the moment the next announcement lands. Ask your compliance lead or your test house. We are not going to put a date on this page and be wrong about it. If your product goes to Northern Ireland the position is different again.

What we will not do is print a marking on a part because a drawing says so. If a part arrives with a UKCA or CE mark specified in the drawing title block, we will ask what that mark is doing on a component before we machine it.

BS 970 numbers, and the imperial leftovers

British drawings name steel differently from both the German and the American systems. BS 970 used three-letter designations for decades and now uses six-character ones, and both still turn up. 070M20 is EN3B, a low-carbon case-hardening steel. 080A42 is EN8. 709M40 is EN19, which is AISI 4140 and also 1.7225 — one steel with three names depending on which side of which border the drawing was written.

Where it bites is the case-hardening grades. EN3B and EN8 are specified because the part will be carburised or induction hardened afterwards, and substituting a through-hardening steel because it is cheaper and available produces parts that machine beautifully and then fail at the heat treater. We ask what the part is going to be, not just what the drawing says.

The imperial leftovers are more work than they look. A drawing that calls out 1/4" BSP still needs a tap we have to order in, BA threads are a special order every time, and a surface finish written as "63 RMS" is not 63 µin Ra — RMS and Ra are different averages and the conversion is not one to one. Older drawings often carry a single "63" with no unit at all, and we quote to the tighter reading rather than the cheaper one.

Ports, airports, and what actually takes the time

Air freight reaches Heathrow, or more often East Midlands, in 4 to 6 days door to door. Sea freight into Felixstowe or Southampton runs 30 to 36 days. For anything under about 200 kg the air premium is usually worth paying, and above a pallet it rarely is.

The delay that catches people is not transit. It is a commodity code that turns out to need an import licence, or goods arriving without a document your broker needs and then sitting in a bonded warehouse while the clock runs. We send the commercial invoice, packing list, HS codes and material certificates as a single set before dispatch so the entry can be prepared while the goods are still on the water.

Terms are 30% by transfer with the order and 70% before dispatch, in GBP or USD. For a sample under a kilo, express courier is roughly GBP 25–40 plus the part cost, and we can take a card for that — for production orders, no.

Questions that come up before the first order

Do we need a GB EORI before we can get a quote?

No. We quote first. You need it before the goods ship, and it takes a few days to obtain, so it is worth starting once you know the order is likely.

Can you invoice in GBP?

Yes, GBP or USD. The rate is the one on the day the proforma is issued and it is fixed for that order rather than floating.

What is the minimum order?

One piece. Most UK enquiries we get start at ten to fifty for a prototype build, which is a normal size for us.

Can you hold tolerances to British Standards?

We work to the tolerance the drawing states, whatever system it cites — BS 8888, ISO 2768, or explicit limits on every dimension. What we will not do is assume an untoleranced dimension falls under a general block when the drawing does not name one.

Do you sign NDAs?

Yes, ours or yours. Tooling and drawings stay with your part number and are not shown to other customers.

Send a drawing, get a price in GBP or USD

PDF, STEP or DXF. Quotes back within 12 working hours, with the customs paperwork set out rather than assumed.

Request a quotation

Shenzhen Changhexin Precision Hardware Co., Ltd. (CHX Metal) · Shajing Street, Bao'an District, Shenzhen, Guangdong, China · ISO 9001:2015 (NOA198428) · ISO 14001:2015 (NOA2100184) · NDA and IP protection · Contact