The model and cutting diameter of the vertical lathe are two different concepts. I will explain the difference between them below.

1. Model of vertical lathe: The model of vertical lathe usually refers to the model specifications of the machine tool, which is used to distinguish different types or models of vertical lathe. The model number can include brand name, model code, technical parameters, etc. Different vertical lathe models may differ in structure, size, power and functions to adapt to different types and scales of processing needs.
2. Cutting diameter: Cutting diameter refers to the diameter of the workpiece cut by the tool used in vertical lathe processing. In vertical lathe processing, cutting diameter is one of the important parameters that determines the size and processing range of the workpiece. The cutting diameter depends on the tool and tool system selected, as well as the design requirements and dimensions of the workpiece.

Different vertical lathe models have different correlations with cutting diameter. When selecting a vertical lathe, the range of cutting diameter needs to be determined based on the size, shape and requirements of the workpiece to be processed. For large workpieces, vertical lathe models with larger cutting diameters and load-bearing capacities are usually chosen. For small precision workpieces, a vertical lathe model with a smaller cutting diameter may be selected.
Therefore, the model and cutting diameter of the vertical lathe are two key factors that need to be considered when selecting vertical lathe equipment to ensure the suitability of the machine tool and meet the processing requirements. According to the specific processing needs and workpiece size, selecting the appropriate vertical lathe model and cutting diameter is an important step to ensure processing quality and efficiency.