CNC vertical lathe runs smoothly, maintains high precision and has the characteristics of fast turning. These are excellent performance indicators and are critical to efficient machining operations. Here are some suggestions and factors that may help achieve these features:

1. High-quality machine tools: Choose high-quality CNC vertical lathes to ensure that they have a solid structure and good rigidity. This contributes to stable operation and improved turning accuracy.

2. Precision guide rail and screw: The use of precision guide rail and screw system can reduce friction and ensure the stability of the machine tool in motion, thus improving the accuracy of processing.

3. Advanced CNC system: The advanced CNC system can provide high-precision motion control and flexible programming options. Ensure that the CNC system has stability, accuracy and adaptability to meet different processing needs.

4. Rapid tool change system: Using the rapid tool change system can reduce downtime and improve production efficiency. This is very important for achieving fast turning.

5. High-speed spindle: Choosing a high-speed spindle will help increase the turning speed. High-speed spindles often enable higher cutting speeds, thus speeding up the machining process.

6. Appropriate cutting parameters: By adjusting cutting parameters such as cutting speed, feed rate and depth of cut, fast and effective turning operations can be achieved.

7. Good-quality tools: Using high-quality, wear-resistant tools can improve turning efficiency and workpiece surface quality. Regular inspection and replacement of tools is part of ensuring stable turning speeds.

8. Reasonable process planning: Design a reasonable process route, considering the cutting path, cutting sequence and cutting depth to maximize turning efficiency.

9. Regular maintenance and upkeep: Regular maintenance and upkeep of machine tools ensures that parts and components are in good condition, which helps maintain high performance over the long term.

The above suggestions can help you maintain the efficient operation of CNC vertical lathes. CNC vertical lathes are widely used in the machinery industry, shipbuilding, and aerospace. If you have other questions or need more detailed information, please feel free to ask.