Sourcing paper-pulp pressure screens from China
Paper-pulp pressure screens and dedicated parts classified under heading 8439 carry 0% UK duty from China across the relevant lines. Confirm applicable machinery safety requirements with the relevant authority, and check whether pressure-equipment rules also cover the casing. Cambridge China Bridge sources paper-pulp pressure screens.
Duty and classification for pressure screens
Heading 8439 covers machinery for making pulp of fibrous cellulosic material and for making or finishing paper or paperboard, together with relevant parts. For a pressure screen, describe its actual role in pulp preparation or paper manufacture. The table presents possible machine and dedicated-part lines for classification checks.
Read from the UK Trade Tariff on 3 October 2026, the relevant lines carried 0% duty for goods from China. The supplied tariff record lists no anti-dumping or countervailing duty, suspensions or attached import controls for these selected lines. Import VAT is separate from customs duty.
Give your broker the process description, assembly drawing and shipment contents to confirm the commodity code. Identify complete screens and separately shipped baskets or rotors. For wider stock-preparation sourcing, see paper-stock hydrapulpers.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Pulp-making machinery, including screens where classification is confirmed | 8439 10 00 00 | 0% | None |
| Paper-making machinery, where the screen's function supports this classification | 8439 20 00 00 | 0% | None |
| Dedicated pulp-making screen parts, such as baskets and rotors | 8439 91 00 00 | 0% | None |
| Other paper-making machinery parts, where classification is confirmed | 8439 99 00 90 | 0% | None |
Specify the basket, rotor and stock conditions
Specify the fibre furnish, stock consistency, temperature, feed flow, inlet pressure and intended screening stage. Define accepted-stock quality and reject handling. State whether the basket uses slots or holes, its opening dimensions, profile, material, usable area and mounting arrangement. Agree rotor geometry, rotation direction, basket clearance, drive details, seal arrangement and connection drawings.
Agree an acceptance trial using representative stock, recording throughput, pressure drop, reject flow and power consumption. A water run can demonstrate leaks and rotation, but does not establish screening performance on your furnish. Include replacement baskets, seals, bearings and access for basket removal in the purchase specification.
For machinery supplied in Great Britain, confirm with the relevant authority the applicable essential health and safety requirements of the Supply of Machinery (Safety) Regulations 2008 and the requirements for a declaration of conformity, relevant marking and English instructions. Pressure-equipment rules cover pressure equipment and assemblies above a maximum allowable pressure of 0.5 bar. Ask the supplier to document whether those rules apply to this casing and explain the proposed assessment route.
Worked duty example
Illustrative example, not a quote: One paper-pulp pressure screen for a mill trial, illustrative only under 8439 10 00 00, invoiced at £28,000 free on board, with £4,000 of freight and insurance to the UK. The customs value is £32,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £32,000, so it is £6,400. 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
Basket: check opening dimensions, profile, surface finish, roundness and mounting fit against the approved drawing; inspect for burrs and transport distortion.
Rotor and drive: check rotor-to-basket clearance, rotation direction, balance records, bearings, coupling alignment and the agreed motor and control components.
Casing and seals: compare material records, weld inspection and agreed pressure-test records with the supplied casing; inspect flanges, cover fastening, seals and leakage during the agreed trial.
Arrival and documents: check shipping damage, loose components, guards, emergency stops, nameplate identity, declaration and English instructions. Reconcile the packing list and spare parts before installation. Use the quality inspection guide to plan checks before shipment and on arrival.
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What goes wrong
A basket can fit the housing yet have the wrong opening profile or usable area. Poor clearance or rotor alignment can cause rubbing, vibration and basket damage. A trial on water may conceal plugging, excessive fibre loss or inadequate throughput on the buyer's stock.
Avoid accepting a generic catalogue model without approved interface drawings and a stock-based trial plan. Agree how failures will be recorded and corrected, who supports commissioning, and which replacement parts can be supplied to the same drawing. Check casing documentation before approving 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 paper-pulp pressure screens from China?
The relevant machine and dedicated-part lines under heading 8439 carried 0% duty in the supplied tariff record, with no anti-dumping or countervailing duty. Confirm the code for the screen's actual function.
Which commodity code covers a pressure screen?
Confirm the process role before choosing a code. The table distinguishes pulp-making machinery, paper-making machinery and their dedicated parts; a product name alone does not resolve the classification.
Does a pressure screen need pressure-equipment assessment?
Check the casing's maximum allowable pressure and the equipment design. Ask the supplier to document whether pressure-equipment rules apply and the assessment route, alongside machinery safety compliance.
How should I test a pressure screen before shipment?
Check basket geometry and rotor clearance, then run an agreed trial with representative stock. Record throughput, pressure drop, reject flow, vibration and leakage against the purchase specification.