CNC vertical lathes and horizontal CNC lathes are two common types of CNC lathes, and they have some differences in structure and application. Here are their main differences:

1. Structure and direction:
CNC vertical lathe: The spindle of the vertical lathe is perpendicular to the workbench, the workpiece is clamped on the workbench, and the tool is processed in the vertical direction. This structure is suitable for vertical and longitudinal processing operations.
Horizontal CNC lathe: The spindle of the horizontal lathe is parallel to the workbench, the workpiece is clamped on the workbench, and the tool is processed in the horizontal direction. This structure is suitable for horizontal and transverse machining operations.

2. Processing capabilities and applications:
CNC vertical lathe: Due to the vertical structure of a vertical lathe, it is usually used to process larger and longer workpieces, such as large shaft parts, gears, molds, etc. Vertical lathes have good rigidity and stability and are suitable for heavy-duty machining and rough machining.
Horizontal CNC lathe: Due to its horizontal structure, the horizontal lathe is suitable for processing smaller workpieces with higher precision requirements, such as small parts, thin-walled parts, wheel parts, etc. Horizontal lathes are often used for precision machining and multi-faceted machining.

3. Space utilization:
CNC vertical lathe: Vertical lathes can process larger-sized workpieces while occupying a smaller floor area, so they have certain advantages in space utilization.
Horizontal CNC lathe: Horizontal lathes require a larger space to accommodate their horizontal structure and table movement, so they occupy relatively more floor area in terms of space utilization.

To sum up, CNC vertical lathes are suitable for processing large and heavy workpieces, while CNC horizontal lathes are suitable for processing smaller and precision workpieces. Which type of lathe to choose should be determined based on factors such as processing needs, workpiece size, accuracy requirements, and budget.