Sourcing Amphibious Excavators from China

Amphibious excavator duty and classification

Read from the UK Trade Tariff on 30 September 2026, the excavator lines under heading 8429 carry 0% basic customs duty for goods from China. The heading covers self-propelled earthmoving machinery. Complete track-laying amphibious excavators with a 360° revolving superstructure are candidates for 8429 52 10 00. The table shows configurations sharing that code, rather than separate tariff lines; it does not classify standalone pontoons or conversion kits.

The supplied tracked-excavator record has blank anti-dumping and countervailing rate fields, lists no suspension and attaches an import-registration control. Blank fields do not establish exemption. The published excavator guidance records additional duties of up to 40.08% and 2.98% for tracked machines weighing at least 11,000 kg but less than 80,000 kg. Registration covers that weight band; importers must enter the relevant additional code on the declaration. Ask your customs broker to check the actual machine, producer and registration requirement.

Confirm the supplied configuration through finding your commodity code, including the revolving superstructure and running gear. The wider excavator guide explains the weight bands and producer-dependent duties. Import VAT is normally 20%; use the import duty and VAT guide when calculating landed cost.

Specify pontoons, stability and digging reach

Describe the intended work: marsh travel, shallow-water excavation or digging while afloat. Ask the manufacturer to state the permitted conditions for each activity, including water depth, current, ground support, boom position and bucket load. Specify pontoon dimensions, compartment construction, track drive, access covers, corrosion protection, supplementary floats and stabilising spuds where fitted. Agree the transport and assembly configuration. For comparison with walking machines, see our walking excavator sourcing guide.

Specify boom reach, bucket capacity, operating mass with the ordered equipment, engine identity, hydraulic components and attachment connections. Request stability calculations and witnessed tests for the actual pontoon and boom combination. A travel demonstration on soft ground does not establish suitability for digging while afloat.

New machinery placed on the Great Britain market needs conformity assessment. Confirm CE or UKCA marking, declaration of conformity and English-instruction requirements with the relevant product-safety authority. Check that the documents describe the amphibious configuration through testing and certification. For combustion-engined machines, request engine type-approval evidence and approval markings. Obtain the noise test report and check it against the delivered configuration.

Worked duty example

Illustrative example, not a quote: Illustrative order: one compact tracked amphibious excavator below 11,000 kg for a contractor under 8429 52 10 00, invoiced at £60,000 free on board, with £5,000 of freight and insurance to the UK. The customs value is £65,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £65,000, so it is £13,000. 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

Pontoons: inspect welds, covers, seals, compartment access and coating damage. Witness an agreed watertightness test and record the results before shipment; inspect again after transport.

Tracks and spuds: check chain tension, rollers, drive engagement and hose clearance. Test travel, steering and the full movement of supplementary floats and stabilising spuds where fitted.

Boom and hydraulics: run the machine to operating temperature, test the agreed digging functions and check cylinders, joints and hoses for leaks or drift. Compare witnessed stability tests with the manufacturer's stated operating conditions.

Identity and arrival: match machine and engine plates, pontoon configuration and attachments to the order and documents. Check English instructions and assembly information during quality inspection. On arrival, record transport damage and repeat the agreed assembly and function checks.

What goes wrong

An amphibious description can conceal a machine intended for marsh travel rather than unsupported digging afloat. A longer boom, larger bucket or omitted side floats can change the proposed working configuration. Make acceptance depend on documented operating limits and tests for the equipment actually supplied.

Pontoon welds or access covers can leak, tracks can bind and hydraulic leaks can appear after warming up. Documents may describe the original excavator rather than the converted machine. The quotation may also omit trade-remedy duties because basic duty is zero. Resolve configuration, document and customs questions before 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.