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SITCSection 7
U.S. imports of nonelectric industrial or laboratory furnaces & ovens (not elsewhere specified), including incinerators (SITC 74138) totaled $4.0M in April 2026, traded with 24 countries.
Importers of Nonelectric Industrial or Laboratory Furnaces & Ovens (Not Elsewhere Specified), Including Incinerators paid $508K in duties in April 2026 — an effective duty rate of 15% on $3.3M in dutiable value, based on actual customs collections rather than the published tariff schedule. Nonelectric Industrial or Laboratory Furnaces & Ovens (Not Elsewhere Specified), Including Incinerators imports of $4.0M in April 2026 ran 30% below the year-to-date monthly average of $5.7M.
Last updated: April 2026 dataFuel-fired industrial furnaces for ceramics, glass, cement, and chemical processing, along with laboratory muffle furnaces and industrial incinerators, occupy this residual nonelectric heading when they do not fit the more specific metal-treatment or bakery categories. Incinerators—used for waste destruction in municipal, medical, and industrial settings—are a commercially significant subset, and their import may trigger EPA review under the Clean Air Act's emission standards for incinerators. Classification in this heading requires ruling out all more-specific nonelectric furnace headings, making a structured exclusion analysis essential. Equipment designed for hazardous-waste incineration may also be subject to EPA Resource Conservation and Recovery Act (RCRA) permitting requirements at the installation site.
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CBP does not conduct EPA pre-clearance for incinerators at the port of entry, but the equipment must comply with EPA New Source Performance Standards (NSPS) and National Emission Standards for Hazardous Air Pollutants (NESHAP) before it can be legally operated in the United States. Importers and end-users are responsible for ensuring the unit meets applicable emission standards; non-compliant equipment cannot be lawfully put into service regardless of whether it cleared customs.
A rotary kiln used for cement clinker production processes calcium carbonate and other mineral inputs, not ores or metals, so it does not fall under the metal-treatment furnace heading (74136). It would instead be classified here as a nonelectric industrial furnace not elsewhere specified. The material being processed—mineral versus metallic ore—is the primary classification criterion, and manufacturer documentation specifying the kiln's design application is the key supporting evidence.
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Monthly import values over time