Harmonized System
U.S. imports of Numerically Controlled Knee-Type Milling Machines for Metal Removal (HS 845951) totaled $154K in August 2026, imported from 7 countries.
Importers of Numerically Controlled Knee-Type Milling Machines for Metal Removal paid $38K in duties in August 2026, an average duty rate of 24.82% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Numerically Controlled Knee-Type Milling Machines for Metal Removal imports of $154K in August 2026 ran 39% below the year-to-date monthly average of $254K.
Last updated: August 2026 dataKnee-type milling machines with numerical control occupy a well-defined niche in precision toolroom and prototype machining, where the adjustable knee allows rapid Z-axis repositioning that fixed-bed machines cannot replicate. Switzerland leads US imports under this heading, alongside Taiwan and Germany — a mix of high-precision European toolroom equipment and cost-competitive Asian production. The US schedule is straightforward, splitting only by condition: used (8459510040) and new (8459510080). Importers should confirm that a machine's knee-type geometry is clearly documented, as knee-type and non-knee-type NC milling machines carry separate HTS lines with potentially different duty rates.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
5 import shipments a month
A knee-type milling machine has a vertically adjustable knee casting that supports the saddle and table, allowing the operator to raise or lower the entire workpiece assembly relative to the spindle. This distinguishes it from bed-type or planer-type mills, where the table travels on a fixed base. Manufacturer drawings or technical datasheets confirming the knee mechanism are the standard supporting documentation for this classification.
For HTS purposes, 'numerically controlled' means the machine's axis movements are directed by a programmed numerical controller — even a basic two-axis NC system qualifies. Machines with only a digital readout (DRO) that provides position feedback without controlling axis motion are not considered numerically controlled and would fall under the non-NC subheading (845959). The controller's function, not its sophistication, determines classification.
ImportsExports
Imports
$154KYoY · free account
Exports
—YoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $2.6M of Numerically Controlled Knee-Type Milling Machines for Metal Removal and exported $2.2M.
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 · exports 11 of 12 months reported. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 845951 — Numerically Controlled Knee-Type Milling Machines for Metal Removal, so the companies trading it can find you. Be the first supplier listed.
Subheading 11 of 12 in heading 8459
Subheading 845951 · $154K of $37.2M
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 |
|---|---|---|---|---|---|
| 8459510080 | Milling Machines, Knee Type, Metal Remov, N/C, New | $154K | 24.82% | 100.00% | $38K |
| 8459510040 | Milling Machines, Knee Type, Metal Remov, N/C, Used | — | -- | -- | -- |
Imports · August 2026
origin
Italy and China together supply 100% of it. China pays 41.7% duty; Italy 10.0%.
customs district
destination
entry
rate provision · imports
duty collected equals 24.82% of imports for consumption.