There's a common perception that CNC equipment offers high precision and efficiency. Furthermore, imported, high-end equipment is often considered to have even higher precision and production efficiency.
However, this is entirely different with CNC flame or plasma cutting machines. Regardless of the machine's inherent precision, the kerf width is affected by factors such as the cutting nozzle. Therefore, the precision of the cut parts is generally within ±0.5mm, several orders of magnitude higher than the machine's inherent precision. Even imported CNC cutting machines costing millions can only achieve this.
This is determined by the inherent cutting process of flame or plasma cutting; it simply cannot achieve the same high machining precision as CNC lathes or other CNC equipment. In other words, whether the machine's precision is level 6 or 8 is largely irrelevant. From a production efficiency perspective, the cutting speed, taking flame cutting as an example, depends entirely on factors such as the sheet thickness, nozzle type, oxygen purity, and fuel gas quality. The machine's movement speed must meet and adapt to the requirements of the cutting process. In other words, cutting efficiency is not directly related to the equipment itself.
Of course, CNC cutting machines still exhibit considerable precision and efficiency, but this is relative to manual cutting and is not the same concept as the improvement in machining precision and efficiency of machine tools in general. As the above analysis shows, regardless of the manufacturer, there will be little difference in cutting precision and production efficiency among CNC cutting machines. Even comparing a small CNC machine costing a few thousand yuan with a large imported CNC machine costing millions, the same applies; the precision, surface finish, and production efficiency of the processed parts will not differ significantly.