Loading...
SITCSection 7
U.S. imports of electric rotary converters (SITC 71640) totaled $565K in April 2026, traded with 23 countries.
Importers of Electric Rotary Converters paid $80K in duties in April 2026 — an effective duty rate of 15% on $539K in dutiable value, based on actual customs collections rather than the published tariff schedule. Electric Rotary Converters imports of $565K in April 2026 ran 15% below the year-to-date monthly average of $664K.
Last updated: April 2026 dataRotary converters use rotating machinery to transform AC to DC (or vice versa) or to change voltage and frequency, distinguishing them from static inverters and transformers. Widely used in industrial power conditioning, traction systems, and legacy grid infrastructure, they occupy a distinct classification from static converters under SITC 71640. Importers should confirm whether a unit qualifies as a rotary converter versus a static converter or motor-generator set, as misclassification affects applicable duty treatment.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
A rotary converter uses a rotating electromechanical assembly to convert electrical power, whereas a static converter (such as a rectifier or inverter) has no moving parts. This mechanical distinction is the key classification boundary — units with rotating components belong under the rotary converter heading, while solid-state devices fall elsewhere.
Rail traction systems, industrial process plants requiring precise frequency conversion, and older utility substations are the primary end-use sectors. Some specialized military and marine applications also rely on rotary converters where static alternatives cannot meet harmonic or isolation requirements.
Supplier Network
Get discovered by U.S. importers searching for HS 71640 — Electric Rotary Converters. Be the first supplier listed.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| BELGIUM | $266K | -- | -$266K |
| UNITED KINGDOM | $108K | $73K | -$34K |
| KOREA, SOUTH | -- | $156K | +$156K |
| CANADA | -- | $143K | +$143K |
| CHINA | $47K | $62K | +$16K |
Monthly import values over time