U.S. imports of Continuous-Action Elevators & Conveyors for Underground Use (HS 842831) totaled $4.5M in August 2026, imported from 11 countries.
Importers of Continuous-Action Elevators & Conveyors for Underground Use paid $431K in duties in August 2026, an average duty rate of 9.57% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Continuous-Action Elevators & Conveyors for Underground Use imports of $4.5M in August 2026 ran 76% above the year-to-date monthly average of $2.5M.
Last updated: August 2026 dataEngineered specifically for the demanding conditions of underground mining and tunneling operations, these continuous-action conveyors and elevators must withstand dust, moisture, and confined-space constraints that surface equipment is not rated for. The single US tariff line (8428310000) covers the full range of underground-rated designs, from armored face conveyors to drift haulage systems. Poland leads US import supply, followed by South Korea and Canada — a supplier mix that reflects the concentration of underground mining equipment manufacturing in coal-producing and heavy-industrial economies. Importers should verify that equipment specifications meet applicable MSHA safety standards before entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
42 import shipments a month
The key classification criterion is whether the equipment is 'specially designed for underground use' — typically evidenced by features such as flame-retardant belting, explosion-proof motors, low-profile frames, or documentation from the manufacturer confirming underground mine ratings. Without such design evidence, CBP may reclassify the unit under a surface-conveyor subheading.
Yes. Equipment destined for US underground mines must comply with MSHA (Mine Safety and Health Administration) regulations, which may require product approval or testing before the machinery is placed in service. Customs clearance and MSHA compliance are separate processes, and importers should confirm MSHA applicability with the end-user before shipment.
Subheading 7 of 10 in heading 8428
Subheading 842831 · $4.5M of $684.8M
ImportsExports
Imports
$4.5MYoY · free account
Exports
$245KYoY · free account
Low of 11 reported months · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $25.0M of Continuous-Action Elevators & Conveyors for Underground Use and exported $5.0M.
Through August 2026 · imports 11 of 12 months reported. Source: U.S. Census Bureau.
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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 |
|---|---|---|---|---|---|
| 8428310000 | Cont-Act Elevat & Convey for Goods, Underground US | $4.5M | 9.57% | 95.70% | $431K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8428310000 | Cont-Act Elevat & Convey for Goods, Underground US | $245K |
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.
Imports · August 2026
origin
Poland and Canada together supply 100% of it. Poland pays 10.0% duty; Canada 0.0%.
customs district
destination
entry
rate provision · imports
4.3% enters free of duty; duty collected equals 9.57% of imports for consumption.