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SITCSection 7
U.S. imports of machinery for mixing or kneading earth, stone & mineral substances (SITC 72833) totaled $13.4M in April 2026, traded with 28 countries.
Importers of Machinery for Mixing or Kneading Earth, Stone & Mineral Substances paid $1.2M in duties in April 2026 — an effective duty rate of 14% on $8.8M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataConcrete mixers, pug mills, and industrial kneaders designed to blend earth, stone, ores, or other solid mineral substances — whether in powder, granule, or paste form — fall under SITC 72833, serving construction materials, ceramics, and refractory industries. The heading's scope is defined by the mixing or kneading action applied to mineral-based inputs, distinguishing it from food or chemical mixing equipment that handles non-mineral materials. Drum capacity, mixing intensity, and material consistency (dry powder versus wet paste) are the primary specifications that drive procurement decisions in this category.
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Typically, no. Vehicle-mounted concrete mixers are generally classified with the vehicle or as specialized motor vehicles rather than as standalone mixing machinery under 72833. The heading applies to stationary or portable industrial mixing and kneading machines that are not integral to a self-propelled vehicle.
A pug mill that kneads clay (a mineral substance in paste form) for brick production fits squarely within SITC 72833. The ceramic paste input and the kneading action both align with the heading's scope. Importers should retain OEM documentation confirming the machine's design for mineral paste processing to support the classification.
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Monthly import values over time