Sourcing internal grinding machines from China
Internal grinding machines from China carry 0% UK duty across the relevant lines of heading 8460. New machines placed on the Great Britain market must be CE or UKCA marked, with a declaration of conformity and English instructions. Prove bore accuracy on your test part. Cambridge China Bridge sources internal grinding machines.
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Duty and classification for internal grinders
Read from the UK Trade Tariff on 1 October 2026, heading 8460 covers machine tools that finish metal or cermets using grinding stones, abrasives or polishing products. Internal grinders remove material from bores and other internal surfaces. Gear grinding and gear finishing machines are excluded.
All selected lines carry 0% duty for goods from China. The supplied tariff record lists no anti-dumping or countervailing duties, suspensions or attached import controls for these lines. Import VAT is separate from customs duty.
Distinguish cylindrical-bore grinding from other internal profiles, and numerically controlled machines from other machines. The table presents candidate lines for those configurations, rather than interchangeable codes. Confirm the commodity code using the machine specification and intended grinding operation. See cylindrical grinding machines for the wider family.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Numerically controlled cylindrical-bore grinding machines | 8460 23 00 00 | 0% | None |
| Cylindrical-bore grinding machines, not numerically controlled | 8460 29 10 00 | 0% | None |
| Other numerically controlled grinders for non-cylindrical internal surfaces | 8460 24 00 00 | 0% | None |
| Other grinders for non-cylindrical internal surfaces, not numerically controlled | 8460 29 90 00 | 0% | None |
Specify the bore, quill and acceptance part
Specify bore diameter and depth, through or blind bores, cylindrical or tapered profiles, workpiece material and hardness, and the required size tolerance, roundness and surface finish. Agree the chuck or fixture, workhead alignment, grinding spindle, quill reach, wheel dimensions, dressing method and coolant filtration. State how the factory will measure the finished bore.
Use your representative workpiece for acceptance. Agree a warm-up procedure and a grinding trial that includes the deepest bore and the required finish. Record the wheel, quill, dressing settings and measuring equipment used, so the arrival trial can repeat the factory conditions.
For supply in Great Britain, the Supply of Machinery (Safety) Regulations 2008 require essential health and safety requirements to be met and the relevant conformity assessment to be completed. New machinery must carry CE or UKCA marking, a declaration of conformity and English instructions. Check documents against the actual machine before shipment.
Worked duty example
Illustrative example, not a quote: 5 numerically controlled internal grinding machines, illustrative order under 8460 23 00 00, invoiced at £110,000 free on board, with £7,000 of freight and insurance to the UK. The customs value is £117,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £117,000, so it is £23,400. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.
Inspection checklist
Bore results: grind the agreed part and measure bore size along its depth, taper, roundness and surface finish against the purchase specification.
Spindle and quill: check run-out, vibration and wheel clearance with the intended quill fitted. Inspect the bore for chatter, burning and an unground shoulder.
Guarding and documents: check wheel guarding, spindle speed limits and the supplied wheel's speed rating. Test emergency stops and check the declaration, marking and English manual.
Arrival condition: inspect spindle restraints, fixtures, coolant equipment and loose accessories before installation. Repeat the agreed grinding trial after installation and compare it with the factory record. Use a written inspection brief.
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What goes wrong
A factory demonstration on a shallow bore can conceal vibration with a longer quill. Wheel wear, dressing settings and inadequate coolant filtration can leave taper or chatter even when the bore entrance measures correctly. Acceptance should cover the working depth and the agreed production material.
Transport movement can disturb alignment, while missing fixtures or unsuitable wheel access can prevent the buyer from repeating the factory result. Agree restraints, accessory packing and the arrival test before dispatch. Keep measurement records with the machine identification and trial settings.
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 internal grinding machines from China?
The relevant lines of heading 8460 carry 0% duty in the supplied tariff record, read on 1 October 2026. No anti-dumping or countervailing duty is listed. Import VAT is separate.
Which commodity code covers an internal grinding machine?
Match the grinding surface and control system to the tariff description. Cylindrical bores and other internal profiles have different candidate lines. Confirm the code from the full specification.
Does an internal grinder need CE or UKCA marking?
New machinery placed on the Great Britain market must be CE or UKCA marked, supplied with a declaration of conformity and have English instructions.
How should I test an internal grinder before shipment?
Grind your representative workpiece using the agreed wheel and quill. Measure bore size through its depth, taper, roundness and finish. Record the settings and repeat the trial after installation.