8460.22.00 - Centerless grinding machines, numerically controlled

This category encompasses centerless grinding machines that are numerically controlled. These machines are designed for precision grinding of cylindrical workpieces without the need for a headstock or tailstock. The workpiece is supported by a blade and advanced by a regulating wheel, allowing for continuous through-feed or in-feed grinding of various metal and cermet components. Numerical control (NC) allows for automated operation, precise control over grinding parameters, and the ability to perform complex grinding cycles with high repeatability.

Distinguishing this category from its siblings, 8460.23.00 specifically covers other cylindrical grinding machines that are numerically controlled, which may include machines with headstocks and tailstocks. 8460.24.00 encompasses a broader range of other numerically controlled grinding machines not otherwise specified, while 8460.29.01 refers to general "other" grinding machines within the 8460.2 series that lack numerical control or do not fit into more specific NC sub-classifications.

The subcategories for 8460.22.00 provide further distinction based on the condition of the machinery. 8460.22.00.40 specifically covers used or rebuilt centerless grinding machines, which may have undergone refurbishment. 8460.22.00.80 covers all other new or otherwise unclassified centerless grinding machines that fall under this heading.