8477.90.25 - Base, bed, platen, clamp cylinder, ram, and injection castings, weldments and fabrications

This HTS category, 8477.90.25, encompasses castings, weldments, and fabrications that serve as integral structural components for machinery designed for working rubber or plastics. Specifically, it includes parts such as bases, beds, platens, clamp cylinders, and rams, which are foundational elements for these specialized machines. The emphasis is on the fabricated nature of these components, distinguishing them from more complete assemblies or sub-assemblies.

When classifying items within the broader "Parts" category for rubber and plastic working machinery (8477.90), it is important to differentiate this subcategory from its siblings. For instance, "Barrel screws" (8477.90.45.01) are specific screw-type components used for material feeding and extrusion, while "Hydraulic assemblies" (8477.90.65.00) are complex systems containing multiple hydraulic components. "Other" parts (8477.90.86) would encompass fabricated elements not fitting the specific criteria of this or other defined sibling categories.

The subcategories under 8477.90.25 provide further specificity based on the type of machinery the parts are intended for. "Of machines of subheading 8477.10.30, 8477.10.40 or 8477.10.90" (8477.90.25.40) directs classification to parts specifically manufactured for injection molding machines falling under those particular subheadings. The "Other" subcategory (8477.90.25.80) is for castings, weldments, and fabrications that meet the general description of this category but are not designated for the specific injection molding machines identified in the preceding subdivision.