8447.12 - With cylinder diameter exceeding 165 mm:

This HTS category, 8447.12, covers circular knitting machines characterized by a cylinder diameter exceeding 165 millimeters. These machines are designed for the automated production of knitted fabrics and garments in a circular format. The defining physical characteristic for classification within this heading is the substantial diameter of the knitting cylinder, which differentiates them from smaller-gauge circular knitting machines.

In contrast to its sibling category, 8447.11, which encompasses circular knitting machines with a cylinder diameter not exceeding 165 mm, this classification specifically targets larger-diameter machines. This distinction in size often correlates to the scale of production, the width of the knitted fabric that can be produced in a single pass, and the types of articles that can be manufactured.

Within 8447.12, further subdivisions exist to refine the classification. The subcategory 8447.12.10.00 specifically includes circular knitting machines of this larger diameter that are designed and configured for the production of hosiery. All other circular knitting machines with a cylinder diameter exceeding 165 mm that do not fall under the hosiery-specific designation are classified under the residual category 8447.12.90.