8412.29.80.45 - Axial piston type

This classification covers hydraulic power engines and motors that are not specifically classified under gear-type or radial piston types. These are typically devices that convert hydraulic fluid pressure and flow into mechanical rotary motion. Examples may include specific designs of hydraulic motors where the pistons move parallel to the shaft, but are not of the radial configuration. The key distinguishing feature is the arrangement of the pistons and their action relative to the output shaft.

Distinguishing this category from its siblings is crucial for accurate classification. HTS 8412.29.80.15 specifically covers gear-type hydraulic motors, which rely on the meshing of gears to produce rotational output. HTS 8412.29.80.30 is for radial piston types, where pistons are arranged radially around a central shaft or eccentric. This category, 8412.29.80.45, encompasses axial piston motors that do not fall into a more specific sub-classification within the axial piston family, often characterized by pistons that reciprocate parallel to the drive shaft.

As this is a leaf node in the HTS structure, there are no further subcategories for this specific classification. Therefore, the focus for classification at this level remains on accurately identifying the hydraulic motor as an "axial piston type" and ensuring it is not classifiable under the more specific gear or radial piston types. The classification relies on the mechanical design and operational principles of the motor, specifically the axial movement of its pistons to generate torque.