To reduce the noise of CNC vertical lathes, you can take the following methods:

1. Machine tool maintenance: Regularly maintain the CNC vertical lathe, including cleaning, lubrication and tightening of various components. Ensure that the machine tool runs smoothly and reduce noise caused by wear or looseness.

2. Vibration reduction measures: Take vibration reduction measures, such as installing shock-absorbing pads or shock-absorbing feet under the base of the machine tool, to reduce the transmission of machine tool vibration to the surrounding environment, thereby reducing noise.

3. Sound insulation cover: Installing a sound insulation cover or sound insulation wall around the CNC vertical lathe can effectively isolate the noise generated by the machine tool and reduce its impact on the surrounding environment.

4. Processing parameter optimization: Optimize CNC vertical lathe processing parameters, such as adjusting cutting speed, feed speed and cutting depth, etc., to reduce noise generated during the cutting process.

5. Use silent tools: CNC vertical lathes use tools and tool holders designed to be quieter to reduce noise during the cutting process.

6. Sound-absorbing materials: Installing sound-absorbing materials, such as sound-absorbing panels or sound-absorbing tiles, on the walls or ceilings of CNC vertical lathe workshops can reduce the reflection and transmission of noise and improve the acoustic environment of the workshop.

7. Regular inspection: Regularly check the status of each component of the CNC vertical lathe, especially the transmission system and bearing components, and promptly discover and repair problems that may cause noise.

Through the above methods, the CNC vertical lathe can effectively reduce the noise of the CNC vertical lathe and improve the comfort and quietness of the working environment.