8515.39.00 - Other

This HTS category, 8515.39.00, encompasses other electric machines and apparatus designed for the arc (including plasma arc) welding of metals, which are not fully or partly automatic. While sibling category 8515.31.00.00 covers automated welding machines, this section is dedicated to manually operated or semi-automatic welding equipment that utilizes an electric arc or plasma arc to join metal components. The primary function is the fusion of metals through the intense heat generated by an electric discharge.

The classification here focuses on the operational mode and automation level. If a welding machine performs the entire welding process without manual intervention or only requires minimal manual adjustments during the operation, it would fall under the "fully or partly automatic" designation. Conversely, machines requiring significant manual control throughout the welding seam or that are primarily designed for operator-guided application of the arc will be classified under this "Other" heading.

Within this category, further distinctions are made based on the operational mechanics of the welding apparatus. Subcategories will differentiate between welding equipment that involves rotating components in its operation and those that do not. This distinction is crucial for refining the classification based on specific design features that may influence the application or performance of the welding machine.