Sourcing SLS printers from China

Duty depends on the deposited material

Heading 8485 covers machines for additive manufacturing. This guide focuses on selective laser sintering printers using polymer powder. The plastics or rubber deposit line is 8485 20 00 00. Metal-deposit equipment is a different tariff line; see metal powder-bed fusion machines for the wider heading.

Read from the UK Trade Tariff on 21 October 2026, polymer machines carried 0% duty from China and metal-deposit machines 2%. The selected parts lines carried 0%. These lines show no anti-dumping or countervailing duty, suspensions or waste controls. The keyboard line lists a supplementary-unit import measure without explanatory text; confirm its declaration requirement with your customs broker.

Confirm the commodity code using the deposited material, machine function and exact parts description. A laser-based process alone does not determine the code. The keyboard line applies only where its detailed tariff description is met.

Specify the powder, build and safety package

Specify the polymer powder grades, build envelope, layer settings, laser configuration and powder handling equipment. Agree how fresh and reused powder will be mixed, how parts will cool and how trapped powder will be removed. Ask the supplier to print your own parts with the proposed powder and provide the build settings.

For supply in Great Britain, confirm the applicable machinery safety documentation and marking requirements with the relevant authority, including the technical file, declaration of conformity, English instructions and UKCA or CE marking. Ask for documents matching the actual model and configuration. Agree installation, operator training, extraction arrangements, software access and spare parts support before ordering.

Worked duty example

Illustrative example, not a quote: An illustrative order for a polymer selective laser sintering printer under 8485 20 00 00, invoiced at £60,000 free on board, with £3,000 of freight and insurance to the UK. The customs value is £63,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £63,000, so it is £12,600. 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

Build quality: print agreed test parts across the build area and compare dimensions, warping, surface finish and weak features with the approved samples.

Powder handling: check seals, recoater movement, powder transfer and cleaning access using the agreed material. Record the powder condition and reuse settings.

Safety and documents: have a competent person verify guards, laser enclosure interlocks, emergency stopping and safe access after cooling. Match the declaration, English manual and marking to the supplied machine.

Arrival and support: inspect the chamber, optics protection, transport restraints and supplied accessories. Confirm software access and run the agreed build after installation; use an inspection brief to record acceptance.

What goes wrong

A demonstration part can hide uneven heating or powder spreading elsewhere in the chamber. Different powder, moisture or reuse settings can change the result. Test the agreed material and representative parts throughout the build area, and record the settings so the supplier can reproduce the accepted result.

A printer can arrive without the powder recovery equipment, usable software access or local commissioning support assumed in the quotation. Optics and recoater assemblies can also suffer in transit. List the complete package and acceptance procedure in the purchase order, including responsibility for correcting a failed build.

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.