Spiral Conveyor Flight Section

Helical steel flight sections bolted together to form continuous spirals for vertical product conveying. HTS 8431.39.0010 as part of spiral conveyor machinery in heading 8428.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8438.80.00.00Same rate: 35%

If for bulk material handling screws/feeders

Continuous discharge screw conveyors classify under 8438 for other machinery.

7304.39.00Same rate: 35%

If basic steel tubing/pipe sections

Unmachined steel components fall under Chapter 73 tubes/pipes.

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Import Tips & Compliance

Sanitary 304/316 stainless steel requires food-grade certification for FDA-regulated imports

Pitch and diameter specs critical for duty-free qualification under certain trade agreements

Pitch mismatch in documentation causes common reclassification issues