8474.10.00.90 - Stationary

This HTS category, 8474.10.00.90, covers stationary machines designed for the sorting, screening, separating, or washing of earth, stone, ores, and other solid mineral substances. These machines are integral to various industrial processes, including mining, quarrying, and aggregate production, where they prepare raw materials by removing impurities or dividing them into desired sizes. The "stationary" designation is crucial, indicating that these are fixed installations, not designed for mobile operation in the field.

This classification is distinguished from its sibling category, 8474.10.00.10, which specifically enumerates "Portable" sorting, screening, separating, or washing machines. While both groups perform similar functions, the key differentiator lies in their mobility. Portable units are designed for easier relocation and use at various work sites, whereas the machines classified under 8474.10.00.90 are intended for permanent or semi-permanent installation.

As this is a leaf node within the HTS structure, there are no further subcategories under 8474.10.00.90. Therefore, classification within this heading relies on confirming that the machinery's primary function aligns with sorting, screening, separating, or washing solid mineral substances and that the equipment is of a stationary nature, rather than portable. Examples include large trommel screens used in mining operations or industrial washing plants for aggregates.