SITCSection 7
U.S. imports of machine tools operated by ultrasonic processes (SITC 73112) totaled $128K in April 2026, traded with 16 countries.
Importers of Machine Tools Operated by Ultrasonic Processes paid $20K in duties in April 2026 — an effective duty rate of 16% on $128K in dutiable value, based on actual customs collections rather than the published tariff schedule. Machine Tools Operated by Ultrasonic Processes imports of $128K in April 2026 ran 90% below the year-to-date monthly average of $1.3M.
Last updated: April 2026 dataUltrasonic machine tools use high-frequency vibration — typically transmitted through an abrasive slurry or a vibrating tool — to erode hard, brittle materials such as ceramics, glass, and hardened steel that resist conventional cutting. Their commercial role is concentrated in aerospace, medical device, and semiconductor tooling applications where surface integrity and minimal heat-affected zones are critical. Because these are capital goods rather than consumables, import volumes tend to track industrial investment cycles rather than seasonal demand patterns.
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The defining characteristic is the use of ultrasonic frequency vibration as the primary material-removal mechanism. Machines that use ultrasonic energy only as an auxiliary feature (e.g., ultrasonic-assisted grinding) may not qualify under this heading and should be evaluated against the heading covering their principal working process.
Aerospace component fabrication, medical implant manufacturing, and semiconductor wafer processing are the primary end-use sectors. These industries rely on ultrasonic machining for hard, brittle substrates — such as advanced ceramics and glass — where laser or EDM processes would introduce unacceptable thermal stress.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| JAPAN | $56K | -- | -$56K |
| CHINA | $17K | $16K | -$823 |
| UNITED KINGDOM | $29K | -- | -$29K |
| TAIWAN | $9K | -- | -$9K |
| KOREA, SOUTH | $8K | -- | -$8K |
Monthly import values over time