SITCSection 7

Particle Accelerators

Name: Particle Accelerators (SITC 77871) -- U.S. Import Data
Creator: U.S. Census Bureau
License: https://www.census.gov/about/policies/open-gov/open-data.html

SITC 77871Basic heading5-digit

U.S. imports · July 2026: $3.6M; YTD $28.3M

U.S. exports · July 2026: $2.0M

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U.S. imports of particle accelerators (SITC 77871) totaled $3.6M in July 2026, traded with 16 countries.

Importers of Particle Accelerators paid $507K in duties in July 2026 — an effective duty rate of 14% on $3.5M in dutiable value, based on actual customs collections rather than the published tariff schedule. Particle Accelerators imports of $3.6M in July 2026 ran 11% below the year-to-date monthly average of $4.0M.

Last updated: July 2026 data

Cyclotrons, synchrotrons, linear accelerators, and related particle-beam machines are among the most capital-intensive and technically specialized imports in the electrical machinery category, used primarily in medical isotope production, cancer radiotherapy, and high-energy physics research. Because many accelerator configurations involve dual-use technology with potential nuclear or defense applications, export controls in the country of origin and US import licensing requirements under relevant regulatory frameworks may apply. The small number of global manufacturers and the bespoke engineering involved mean each transaction is typically negotiated individually rather than traded as a commodity.

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29 shipments/mo

12-month trend

ImportsExports

Imports

$3.6MYoY · Pro

Exports

$2.0MYoY · Pro

12-mo low · imports

YoY · Pro

$11.1M$0

June 2025December 2025July 2026

Through July 2026. Source: U.S. Census Bureau.

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Share of section 7 imports0.0021%

Basic heading 77871 · $3.6M of $175.6B

Where it comes from, where it lands, what it pays

Imports · July 2026

Countries

origin

Sweden and China together supply 95% of it.

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Districts

customs district

Census does not publish district detail for this classification system.

States

destination

Census does not publish state detail for this classification system.

Ports

entry

Census does not publish port detail for this classification system.

Frequently Asked Questions

Are particle accelerators subject to any US import licensing or export-control considerations?

Certain particle accelerator configurations — particularly those capable of producing fissile material or with military applications — may be subject to dual-use export controls in the country of origin and could require coordination with US agencies such as the Department of Energy or the Nuclear Regulatory Commission upon import. Importers should conduct an end-use review and consult with a licensed customs broker or trade counsel before completing entry.

How are medical cyclotrons used for radiopharmaceutical production classified differently from research accelerators?

Both medical cyclotrons and research accelerators fall under this SITC heading, but at the HTS level the distinction between types (e.g., cyclotrons vs. synchrotrons vs. linear accelerators) and their rated beam energy may affect the applicable subheading. Importers should provide full technical specifications — including particle type, maximum energy, and intended end use — to support correct classification.