8457.10.00.55 - Not over 685 mm

This HTS category, 8457.10.00.55, specifically classifies horizontal-spindle machining centers with an automatic tool changer and a Y-axis travel of not over 685 mm. These machines are designed for automated metalworking operations, performing multiple machining functions such as milling, drilling, tapping, and reaming on a workpiece without manual intervention. The defining characteristic for this subcategory is the limited travel of the Y-axis, which dictates the size of the components that can be processed.

This classification is distinguished from its sibling categories by the precise measurement of the Y-axis travel. HTS code 8457.10.00.60 covers machines with a Y-axis travel exceeding 685 mm but not exceeding 1,016 mm, while 8457.10.00.65 includes those with a Y-axis travel of over 1,016 mm. Therefore, the key differentiator for this specific code is the upper limit of 685 mm for the Y-axis movement.

As this is a leaf node within the HTS structure, there are no further subcategories. Classification under this code is definitive for horizontal-spindle machining centers with automatic tool changers that fall within the specified Y-axis travel dimension. This ensures accurate import and export declarations for machinery of this precise specification.