Sourcing mineral hydrocyclones from China

Duty on hydrocyclones and parts

Heading 8474 covers machinery for processing earth, stone, ores and other mineral substances, including separating and washing machines. Mineral slurry hydrocyclones separate suspended mineral particles. The separating-machine line is a classification candidate for complete units and clusters; the parts lines depend on construction and eligibility. See aggregate washing plants for the wider equipment family.

Read from the UK Trade Tariff on 30 September 2026, every supplied line of heading 8474 carried 0% duty for goods from China. The supplied facts list no anti-dumping or countervailing duty, steel measure, suspension or attached import control. This tariff position does not establish product safety compliance.

Confirm the commodity code using the separation function, mineral feed description, construction drawings and shipment contents. Identify separately supplied pumps and spare liners rather than assuming everything uses the complete cyclone code. The table repeats the separating-machine code for individual cyclones and clusters; it does not represent separate tariff subdivisions.

Specify slurry duty, geometry and pressure

Specify the mineral, feed particle-size distribution, solids concentration, slurry density, temperature and abrasiveness. Agree feed pressure and flow, target separation size, solids recovery and overflow quality under those conditions. Define the cyclone diameter, cone geometry, inlet, vortex finder and apex dimensions. State whether the order includes manifolds, a pump, valves, controls or only cyclone bodies.

Agree liner material, thickness, attachment method and replacement drawings. Request a slurry trial using representative material, recording feed conditions and sampling both overflow and underflow. A water-only test can check leakage but cannot demonstrate mineral separation. Use testing and certification support to agree the evidence needed for the supplied configuration.

For Great Britain, check pressure-equipment scope where maximum allowable pressure exceeds 0.5 bar; ask the supplier to document classification and any claimed exclusion. Distinguish a bare cyclone from a pumped assembly. Where the assembly qualifies as machinery, machinery safety requirements apply; confirm the CE or UKCA marking and English-instruction requirements with the relevant authority. Agree the compliance documents before shipment.

Worked duty example

Illustrative example, not a quote: 40 compact mineral processing hydrocyclones for a distributor, illustrative only under 8474 10 00 00, invoiced at £32,000 free on board, with £6,000 of freight and insurance to the UK. The customs value is £38,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £38,000, so it is £7,600. 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

Geometry: measure inlet, apex and vortex finder dimensions against approved drawings; check flange patterns, manifold connections and replacement-part fit.

Liners: verify the ordered material and thickness, inspect ceramic joints or rubber bonding, and look for cracks, gaps, loose sections and exposed housing.

Performance: witness the agreed slurry trial, record pressure and flow, and compare overflow and underflow samples with the agreed separation criteria.

Arrival: inspect housings, flanges and supports for transit damage; reconcile markings, serial identification, manuals and applicable compliance documents with the delivered configuration. Check the agreed spare liners, seals and apex inserts.

What goes wrong

An apex or vortex finder that differs from the drawing changes the separation result. An unsuitable liner can wear quickly or detach, while uneven manifold feeding makes a cluster perform inconsistently. A quoted capacity without slurry density, particle sizes and feed pressure gives the buyer no usable acceptance condition.

Replacement parts may share a model name but fail to fit the installed housing. Freeze interface drawings and liner specifications, approve a trial assembly, and agree how separation performance will be measured. Check liner seating and shipping supports before loading, then inspect for cracked ceramic and distorted flanges on arrival.

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.