U.S. imports of Flat-Surface Grinding Machines, Numerically Controlled (HS 846012) totaled $7.6M in August 2026, imported from 14 countries.
Importers of Flat-Surface Grinding Machines, Numerically Controlled paid $878K in duties in August 2026, an average duty rate of 11.59% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataNumerically controlled flat-surface grinding machines use programmed axes to achieve precise, repeatable stock removal across flat workpieces — a critical capability in aerospace, die-and-mold, and precision tooling shops. Switzerland and Germany are the leading US import sources, reflecting the premium engineering standards these markets bring to high-accuracy surface grinding. The US tariff schedule divides the heading into two 10-digit lines: used or rebuilt machines (8460120040) and new machines (8460120080), a distinction that affects both duty treatment and eligibility for certain trade-remedy measures. Importers should verify whether specific models are subject to Section 301 tariffs based on country of origin.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
32 import shipments a month
The US schedule splits this heading into 8460120040 for used or rebuilt machines and 8460120080 for new machines. The new/used distinction affects the applicable duty rate and may also affect eligibility for certain trade-remedy exclusions, so accurate condition declaration is essential at entry.
Machines originating from certain countries may be subject to Section 301 tariffs. Because rates and product-specific exclusions change frequently, importers should confirm current applicability with a licensed customs broker before entry.
ImportsExports
Imports
$7.6MYoY · free account
Exports
$2.4MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $77.5M of Flat-Surface Grinding Machines, Numerically Controlled and exported $13.9M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 846012 — Flat-Surface Grinding Machines, Numerically Controlled, so the companies trading it can find you. Be the first supplier listed.
Subheading 3 of 10 in heading 8460
Subheading 846012 · $7.6M of $104.9M
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 |
|---|---|---|---|---|---|
| 8460120080 | Flat-Surf Grind Machs, Numerically Controlled, New | $7.5M | 11.67% | 100.00% | $874K |
| 8460120040 | Flat-Surf Grind Mach, Numb Control, Used or Rebult | $85K | 4.40% | 100.00% | $4K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8460120080 | Flat-Surf Grind Machs, Numerically Controlled, New | $1.3M |
| 8460120040 | Flat-Surf Grind Mach, Numb Control, Used or Rebult | $1.1M |
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
Japan and Germany together supply 79% of it.
customs district
destination
entry
rate provision · imports
duty collected equals 11.59% of imports for consumption.