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SITCSection 7
U.S. imports of fully or partly automatic arc & plasma arc welding machines (SITC 73735) totaled $24.1M in July 2026, traded with 32 countries.
Importers of Fully or Partly Automatic Arc & Plasma Arc Welding Machines paid $2.3M in duties in July 2026 — an effective duty rate of 11% on $20.7M in dutiable value, based on actual customs collections rather than the published tariff schedule. Fully or Partly Automatic Arc & Plasma Arc Welding Machines imports of $24.1M in July 2026 ran 13% below the year-to-date monthly average of $27.7M.
Basic heading 324 of 642 in section 7
Basic heading 73735 · $24.1M of $175.6B
Automatic and semi-automatic arc welding equipment — including plasma arc systems — occupies a critical position in automotive, shipbuilding, and heavy fabrication supply chains, where throughput and weld repeatability drive purchasing decisions. These machines are classified under SITC 73735 and may be subject to Section 301 tariffs depending on country of origin, making sourcing geography a key cost variable for capital equipment buyers. Plasma arc variants command premium pricing due to their ability to process high-alloy and stainless steels at speeds unattainable by conventional shielded-metal processes. Importers should confirm HTS classification carefully, as the degree of automation determines whether a unit falls here or in an adjacent heading.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
367 shipments/mo
The automation criterion is the primary classification divider at this SITC level. A machine with programmable torch movement, automatic wire feed, and seam-tracking qualifies as fully or partly automatic; a manually guided unit does not. Importers should obtain technical specifications from the manufacturer and consult a licensed customs broker to confirm the correct HTS subheading before entry.
Both plasma arc and conventional arc welding machines fall within SITC 73735 when fully or partly automatic, so they share the same SITC classification. However, at the HTS 10-digit level, plasma arc equipment may map to a distinct subheading, and Section 301 additional duties may apply based on origin. Verifying the precise HTS code with a customs broker is advisable before importation.
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Imports · July 2026
origin
Japan and Germany together supply 51% of it.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$24.1MYoY · Pro
Exports
$6.3MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.