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HSChapter 84
U.S. imports of grinding machines for removing metal (non-flat-surface, axis accuracy ≥ 0.01 mm, not numerically controlled) (HS 846029) totaled $869K in April 2026, traded with 19 countries.
Importers of Grinding Machines for Removing Metal (Non-Flat-Surface, Axis Accuracy ≥ 0.01 mm, Not Numerically Controlled) paid $117K in duties in April 2026 — an effective duty rate of 13% on $869K in dutiable value, based on actual customs collections rather than the published tariff schedule. Grinding Machines for Removing Metal (Non-Flat-Surface, Axis Accuracy ≥ 0.01 mm, Not Numerically Controlled) imports of $869K in April 2026 ran 55% below the year-to-date monthly average of $1.9M.
Last updated: April 2026 dataConventional (non-NC) cylindrical and profile grinding machines with axis accuracy of 0.01 mm or better occupy a specialized niche in toolrooms and maintenance facilities where operator skill substitutes for programmed control. Italy and the United Kingdom are the leading US import sources for this category, with Germany also a significant supplier. The US schedule provides four 10-digit lines: used/rebuilt machines (8460290105), new external cylindrical including universal types (8460290110), new internal cylindrical machines (8460290130), and other new machines meeting the accuracy threshold (8460290150). As with the non-NC flat-surface heading, the absence of numerical control — not merely the absence of CNC — is the governing classification criterion.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Rebuilt machines are classified under 8460290105, the used/rebuilt line. 'Rebuilt' is treated equivalently to 'used' for tariff purposes under this heading, so a machine that has been substantially refurbished but not manufactured new should be declared accordingly, supported by documentation of the rebuild process and prior service history.
The manufacturer's published specifications or a calibration certificate from an accredited metrology lab are the standard evidence. If the machine's rated accuracy is coarser than 0.01 mm, it would not qualify for this heading and would need to be classified elsewhere in Chapter 84. Customs may request technical documentation at entry to confirm the accuracy rating.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8460290150 | GRINDING MACH, METAL REMOV, ACCUR 0.01 MM, NESOI | $588K | 13.01% | $76K |
| 8460290130 | GRIND MAC,INTERN CYL, MTL REMOV, EXCEPT N/C, NEW | $158K | 14.40% | $23K |
| 8460290110 | GRIND MAC,EXTERN CYL,INC UNIV,MTL REMOV,EX N/C,NEW | $70K | 14.40% | $10K |
| 8460290105 | GRIN MA EX FLT SUR,MTL REMOV,ACC0.01MM,EX N/C,USED | $53K | 14.40% | $8K |
GRINDING MACH, METAL REMOV, ACCUR 0.01 MM, NESOI
GRIND MAC,INTERN CYL, MTL REMOV, EXCEPT N/C, NEW
GRIND MAC,EXTERN CYL,INC UNIV,MTL REMOV,EX N/C,NEW
GRIN MA EX FLT SUR,MTL REMOV,ACC0.01MM,EX N/C,USED
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8460290150 | GRINDING MACH, METAL REMOV, ACCUR 0.01 MM, NESOI | $751K |
| 8460290105 | GRIN MA EX FLT SUR,MTL REMOV,ACC0.01MM,EX N/C,USED | $532K |
| 8460290110 | GRIND MAC,EXTERN CYL,INC UNIV,MTL REMOV,EX N/C,NEW | $0 |
GRINDING MACH, METAL REMOV, ACCUR 0.01 MM, NESOI
21 no
GRIN MA EX FLT SUR,MTL REMOV,ACC0.01MM,EX N/C,USED
34 no
GRIND MAC,EXTERN CYL,INC UNIV,MTL REMOV,EX N/C,NEW
DIGITAL PROCESSING UNITS, N.E.S.O.I.
HS 847150
PARTS & ACCESSORIES FOR ADP MACHINES & UNITS
HS 847330
PORT DIGTL AUTOMATIC DATA PROCESS MACH NOT > 10 KG
HS 847130
AUTOMATIC DATA PROCESSING STORAGE UNITS, N.E.S.O.I
HS 847170
AUTOMATIC DATA PROCESSING UNITS, N.E.S.O.I.
HS 847180
TURBOJET AND TURBOPROLLER PARTS
HS 841191
| Country | Imports | Exports | Balance |
|---|---|---|---|
| KOREA, SOUTH | $404K | -- | -$404K |
| SPAIN | -- | $303K | +$303K |
| GERMANY | $121K | $125K | +$4K |
| CANADA | -- | $199K | +$199K |
| CHINA | $33K | $135K | +$102K |
| State | Imports | Exports | Balance |
|---|---|---|---|
| Georgia | $355K | -- | -$355K |
| North Carolina | -- | $303K | +$303K |
| New Jersey | -- | $260K | +$260K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| SAVANNAH, GA | $365K | -- | -$365K |
| CLEVELAND, OH | $25K | $313K | +$288K |
| NEW YORK, NY | -- | $284K | +$284K |