8455.30.00.55 - Exceeding 6,803.9 kg

This classification pertains to rolls specifically designed for use in metal-rolling mills, which are fabricated from cast steel and have a weight exceeding 6,803.9 kilograms. These heavy-duty rolls are integral components of industrial machinery used to shape metal through pressure between rotating cylinders. The focus on cast steel highlights the material composition, emphasizing durability and strength suitable for high-stress rolling operations.

Distinguishing this category from its siblings relies on precise weight thresholds. Rolls classified under 8455.30.00.35 are lighter, not exceeding 2,268 kg. Those under 8455.30.00.45 fall within an intermediate weight range, exceeding 2,268 kg but not surpassing 6,803.9 kg. Therefore, the defining characteristic for this particular classification is the significant weight of the cast steel roll, indicating its application in heavy industrial metal processing.

As this is a leaf node within the HTS classification system, there are no further subcategories. Classification decisions for rolls under this heading are therefore solely determined by their material (cast steel), their intended use (rolls for rolling mills), and their specific weight exceeding 6,803.9 kg.