U.S. exports of Parts of Non-Farm Grain Cleaning, Sorting & Milling Machinery (HS 843790) totaled $4.6M in August 2026.
Importers of Parts of Non-Farm Grain Cleaning, Sorting & Milling Machinery paid $367K in duties in August 2026, an average duty rate of 12.42% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataWear parts, screens, rollers, and mechanical assemblies for commercial grain-cleaning, seed-sorting, and milling equipment are classified here, with the US schedule distinguishing parts of flour and grain mill machines (8437900010) from parts of other cleaning, sorting, and cereal-working machinery (8437900090). Canada leads imports under this heading, with Spain and Italy also significant — the Spanish and Italian presence reflects aftermarket supply chains tied to European OEM milling-equipment manufacturers. China's position among the top five suppliers means importers should assess Section 301 exposure at the applicable 10-digit line before entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
248 import shipments a month
Metal or plastic sieve frames and screens designed specifically for grain-cleaning machines are classified as parts of those machines under 8437.90, not as textile or wire-cloth products. The key is that they are identifiable as parts of a specific machine type. Woven wire cloth sold in bulk without machine-specific design would be classified differently.
CBP expects evidence that the part is dedicated to or principally used with grain-cleaning or milling machinery — OEM part numbers, technical drawings referencing the parent machine, or supplier invoices describing the part's application all strengthen the classification. Generic fasteners or bearings used across many machine types are typically classified under their own headings rather than as parts of milling machinery.
ImportsExports
Imports
$3.0MYoY · free account
Exports
$4.6MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $39.8M of Parts of Non-Farm Grain Cleaning, Sorting & Milling Machinery and exported $61.4M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
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Subheading 2 of 3 in heading 8437
Subheading 843790 · $4.6M of $14.2M
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8437900090 | Pts, Mac, Cln, Srt, Gr Sd, Gr, Drd Leg Veg, Mil, Wrk Ceral | $1.9M | 9.02% | 70.52% | $169K |
| 8437900010 | Parts of Flour Mill or Grain Mill Machines | $1.1M | 18.28% | 97.01% | $198K |
Pts, Mac, Cln, Srt, Gr Sd, Gr, Drd Leg Veg, Mil, Wrk Ceral
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8437900000 | Parts of Mach F Clean, Sort, Mill Grain, Veg, Ex Farm | $4.6M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Exports · August 2026
destination
Canada and Mexico together take 48% of it.
customs district
origin
entry
rate provision · imports
19.8% enters free of duty; duty collected equals 12.42% of imports for consumption.