Sourcing CNC tapping machines from China
CNC tapping machines from China carry 2% UK duty under the threading or tapping line; the wider heading ranges from 0% to 2%. Confirm the applicable machinery safety, conformity marking, declaration and English instruction requirements for new machines supplied in Great Britain with the relevant authority. Cambridge China Bridge sources CNC tapping machines.
2% duty on tapping machines
Read from the UK Trade Tariff on 24 October 2026, heading 8459 covers machine tools that remove metal by drilling, boring, milling, threading or tapping. The threading or tapping line, 8459 70 00 00, carries 2% duty for goods from China. The supplied tariff data records no anti-dumping or countervailing duty, suspension or attached import control on this line.
The table includes neighbouring machine types for comparison, rather than interchangeable codes for a tapping machine. The wider heading ranges from 0% to 2%. See drilling and milling machines for the broader family. Machining centres with automatic tool change fall under heading 8457.
Confirm the commodity code using the machine's construction, functions and control specification. Do not select a drilling or milling code simply because the machine can also tap. For border-cost calculations, see UK import duty and VAT.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Other threading or tapping machines | 8459 70 00 00 | 2% | None |
| Numerically controlled drilling machines | 8459 21 00 00 | 2% | None |
| Other numerically controlled milling machines, excluding knee-type | 8459 61 90 00 | 2% | None |
| Way-type unit head machines | 8459 10 00 00 | 2% | None |
Specify the thread and tapping cycle
Give the factory a drawing and representative workpiece. Specify material, thread form, pitch, tolerance, blind or through holes, tapping depth, hole preparation and the required thread gauge. Agree whether the process uses cutting taps or forming taps, and specify holders, lubrication and chip removal.
Define spindle torque and speed range, feed synchronisation, reversal, axis travel, workholding and the control model. Ask the factory to demonstrate the complete cycle on your part, including withdrawal and recovery from a stopped cycle. Record the settings and acceptance criteria.
Confirm the applicable machinery supply safety, conformity marking, declaration of conformity and English instruction requirements for new machinery supplied in Great Britain with the relevant authority. CE marking remains recognised in Great Britain; confirm the applicable CE or UKCA conformity route with the relevant authority. Arrange a review of the exact machine through testing and certification.
Worked duty example
Illustrative example, not a quote: Illustrative order of 8 CNC tapping machines under 8459 70 00 00, invoiced at £96,000 free on board, with £6,000 of freight and insurance to the UK. The customs value is £102,000. Duty at 2% is £2,040. Import VAT at 20% is charged on the customs value plus duty, £104,040, so it is £20,808. Import taxes total £22,848; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £2,040 of duty. The import duty and VAT guide explains each step.
Inspection checklist
Threads: gauge the agreed test pieces and check depth, torn threads, burrs and chips trapped in blind holes.
Cycle: witness spindle and feed synchronisation, reversal, clamping and the agreed interrupted-cycle recovery procedure.
Safety and documents: check guards, interlocks and emergency stops; match the machine identity to the declaration, English manual and wiring diagrams.
Arrival: check transport damage, spindle alignment, holders and fixtures, then repeat the agreed tapping test after installation. Use the quality inspection guide to organise the checks.
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What goes wrong
An unloaded demonstration can hide poor tapping performance. Feed mismatch, unsuitable holders, weak clamping or inadequate lubrication can produce broken taps and damaged threads. Blind holes also expose problems with chip evacuation and reversal. Make acceptance depend on gauged parts in your specified material.
A substituted control or spindle can change the cycle you approved. Transit movement can disturb alignment, while missing fixtures can prevent repeat testing. Record the approved components, retain the test programme and require the factory to secure moving assemblies for shipment.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For machinery and equipment, see machinery imports.
Frequently asked questions
What is the UK import duty on CNC tapping machines from China?
The threading or tapping line, 8459 70 00 00, carries 2% duty for goods from China in the supplied tariff data read on 24 October 2026.
Does every machine advertised as a tapping centre use the same code?
No. Confirm the construction and functions. Machining centres with automatic tool change fall under heading 8457; a supplier's sales name is not enough to select the code.
What should the factory demonstrate before shipment?
A complete tapping cycle on your material and workpiece, followed by thread gauging. Include blind-hole performance where relevant, reversal, clamping and recovery from an interrupted cycle.
What paperwork should accompany the machine?
For new machinery supplied in Great Britain, check conformity marking, a declaration of conformity and English instructions. Match the documents to the exact machine and retain the agreed acceptance record.