Machines for cleaning — HTS 8437
Machines for cleaning, sorting or grading seed, grain or dried leguminous vegetables, and parts thereof; machinery used in the milling industry or for the working of cereals or dried leguminous vegetables, other than farm type machinery; parts thereof
Chapter 84 › Heading 8437
2026 HTS Rev 19 Synced Rules verified Operational
Written to help non-specialists understand this page. Rates, dates, and legal facts come from the official records above and on the linked source.
HTS heading 8437 groups machinery used to clean, sort, or grade seed, grain, or dried leguminous vegetables, such as beans and peas. It also covers machinery used in the milling industry or in working those products, excluding farm-type machinery. Certain parts designed for this machinery are included as well.
To narrow the 4-digit heading to a specific 8-digit HTS code, first identify whether the item is a complete machine or a part, then match its primary function and technical design to the more specific subheading. The 8-digit distinctions may depend on the machine’s type, operation, or intended use—not necessarily only its material. Read the complete wording of each candidate provision, including exclusions and parts language, and verify the current HTSUS text before entry.
What to check
- Describe the machine’s actual operation: cleaning, sorting, grading, milling, grinding, mixing, or another cereal- or legume-processing function.
- Confirm that the goods are for industrial or milling use rather than farm-type use, because that distinction can affect classification.
- For a part, verify that it is identifiable as principally or solely used with machinery of heading 8437; a general-purpose component may belong elsewhere.
- Compare the product’s construction, capacity, processing stage, and technical specifications with the full 8-digit descriptions and any applicable section or chapter notes.
- Keep product literature, diagrams, model numbers, and supplier specifications, and request a customs-broker or binding-ruling review when the function or intended use is unclear.
HTS heading 8437 summary
Machines for cleaning is a 4-digit product category containing 3 published product-code lines in this snapshot. A heading does not carry one universal duty rate; classification must be narrowed to the line matching the product facts.
How to find your code in this category
A heading is a product category. To get the exact duty, narrow from this 4-digit heading to a sub-category (usually by material), then open the 8-digit code that matches your product.
Open any code in the tables below to see its exact duty rate, a duty calculator (enter your shipment value → estimated duty and landed cost), the rate-change history chart, and the country-by-country breakdown (including Section 301/232 add-on duties).
Why you have to click in: a single category can contain products with very different duties. The rate depends on the specific product — its material and construction — and on the country of origin, and those only get pinned down at the 8-digit code level. That is why this page points you to codes instead of showing one rate for the whole category.
Product codes & duty rates
👇 Each row is a specific product code — click a blue code to open its full page with exact duty rates by country, the rate-history chart, and a duty calculator. 👉
| Code | Description | General (MFN) | Special | Column 2 |
|---|---|---|---|---|
| 8437.10.00.00 👉 | Machines for cleaning, sorting or grading seed, grain or dried leguminous vegetables | Free | — | 35% |
| 8437.80.00 👉 | Other machinery | Free | — | 35% |
| 8437.90.00 👉 | Parts | Free | — | 35% |
"Special" shows the free-trade-agreement rate; open a code to see exactly which countries qualify.
Common questions
What products fall under HTS heading 8437?
Machines for cleaning, sorting or grading seed, grain or dried leguminous vegetables, and parts thereof; machinery used in the milling industry or for the working of cereals or dried leguminous vegetables, other than farm type machinery; parts thereof. To classify a specific item you must pick the matching sub-category and 8-digit code above; the right choice usually depends on the material and construction of the product.
How do I choose the right code within this category?
Start from the sub-categories (typically divided by material—for example cotton versus man-made fibers), then open the active 8- or 10-digit code that matches the product. When unsure, a licensed customs broker or a CBP binding ruling can confirm the classification.
Reference information only, not customs, legal, or classification advice. Confirm the current code and rate against the official HTS before you import.