Harmonized System
U.S. exports of Mechanical Stokers, Grates, Ash Dischargers & Similar Appliances (HS 841630) totaled $4K in August 2026, exported to 7 countries.
Last updated: August 2026 dataMechanical stokers, traveling grates, and ash discharge systems are core components of solid-fuel combustion installations — biomass boilers, coal-fired industrial furnaces, and waste-to-energy plants among them. All imports enter under a single tariff line (8416300000), so classification disputes typically arise at the boundary with furnace parts (heading 841690) or with conveying machinery (chapter 84 elsewhere). India leads US supply under this heading, followed by China and Canada. Buyers should document the equipment's functional role within the combustion system to defend classification, particularly for integrated stoker-grate assemblies that could be argued as parts rather than complete appliances.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
If the assembly is presented as a functional unit capable of performing the stoking and grate functions independently, it is generally classified as a complete appliance under 8416300000. Disassembled or incomplete units may be classified as parts under 841690. CBP's essential character analysis and GRI 2(a) apply; a binding ruling is advisable for complex assemblies.
Primary demand comes from biomass and waste-to-energy power plants, industrial coal-fired boilers, and cement or lime kilns that use solid fuel combustion. Retrofit projects at aging industrial facilities also generate import activity, particularly for replacement grate sections and ash handling components.
Subheading 4 of 4 in heading 8416
Subheading 841630 · $4K of $18.6M
Trade Directory
List your company under HS 841630 — Mechanical Stokers, Grates, Ash Dischargers & Similar Appliances, so the companies trading it can find you. Be the first supplier listed.
ImportsExports
Imports
—YoY · free account
Exports
$4KYoY · free account
Low of 11 reported months · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $1.7M of Mechanical Stokers, Grates, Ash Dischargers & Similar Appliances and exported $7.8M.
Fewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through August 2026 · imports 11 of 12 months reported. Source: U.S. Census Bureau.
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 |
|---|---|---|---|---|
| 8416300000 | Mech Stokes, Mech Grates, Mech Ash Discharge&sim Ap | — | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8416300000 | Mech Stokes, Mech Grates, Mech Ash Discharge&sim Ap | $4K |
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 100% of it.
customs district
origin
entry
rate provision · imports
None recorded for this period.