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HSChapter 90
U.S. exports of balancing machines for mechanical parts (HS 903110) totaled $10.2M in July 2026.
Importers of Balancing Machines for Mechanical Parts paid $429K in duties in July 2026 — an effective duty rate of 14% on $3.0M in dutiable value, based on actual customs collections rather than the published tariff schedule. Balancing Machines for Mechanical Parts imports of $3.2M in July 2026 ran 14% above the year-to-date monthly average of $2.8M.
Last updated: July 2026 dataDynamic and static balancing machines — used to detect and correct mass imbalance in rotating components such as crankshafts, turbine rotors, driveshafts, and fan assemblies — enter under a single US tariff line (9031100000). These machines are capital equipment for automotive, aerospace, and industrial machinery manufacturing, where rotor imbalance causes vibration, bearing wear, and premature failure. Germany and Italy dominate US import supply, consistent with their global leadership in precision machine-tool manufacturing, with China and Japan also notable sources. Balancing machines are purely mechanical/metrology equipment and carry no mandatory admissibility agency review.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
227 shipments/mo
Wheel balancers used in tire service applications are generally classified under heading 9031 as balancing machines, but the specific subheading depends on their design and function. A machine purpose-built for balancing automotive wheels may fall under 9031100000 if it meets the 'balancing mechanical parts' description. However, some wheel balancers with integrated diagnostic or alignment functions may be classified differently. A binding ruling is advisable for high-volume imports of automotive service equipment.
Importers should retain the manufacturer's technical datasheet showing the machine's balancing method (static, dynamic, or both), maximum rotor weight and diameter, rotational speed range, and intended application. These specifications help CBP confirm classification and distinguish balancing machines from related equipment such as vibration analyzers or machine-tool testing apparatus.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 9031100000 | Machines for Balancing Mechanical Parts | $3.2M | 13.38% | 93.70% | $429K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 9031100000 | Machines for Balancing Mechanical Parts | $10.2M |
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.
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ImportsExports
Imports
$3.2MYoY · Pro
Exports
$10.2MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
India and Vietnam together take 68% of it.
customs district
origin
entry
rate provision · imports
5.9% enters free of duty; the effective duty rate is 13.38%.