Purchasing a CNC vertical lathe is an important investment decision, and you need to consider the following key issues:

1. Processing needs: First of all, you must clarify your own processing needs, including workpiece material, workpiece size, processing accuracy, etc. Select the appropriate machine tool specifications and capabilities based on your machining needs.
2. Brands and suppliers: Choose well-known brands of CNC machine tools and reliable suppliers. They usually provide more reliable products and excellent after-sales services. Check customer reviews, supplier qualifications and market reputation.
3. Performance indicators: Pay attention to the performance indicators of CNC vertical lathes, such as spindle speed, spindle power, tool magazine capacity, feed speed, etc. Ensure that the performance of the machine tool meets your processing requirements.
4. Automation devices: Understand the automation devices equipped with CNC vertical lathes, such as automatic tool changing systems, automatic fixture loading and unloading systems, and automatic measurement systems. Consider whether these devices are needed based on production needs.
5. CNC system: CNC system is a key part of CNC vertical lathe, affecting programming, operation and processing accuracy. Understand the brand, function, ease of use and flexibility of the CNC system, and choose the CNC system that suits you.
6. Price and cost performance: compare the prices and cost performance of different suppliers, not only pay attention to the price of the machine tool, but also consider the performance, quality and after-sales service of the supplier. Choose the machine tool that matches the value with the price.
7. After-sales service: Understand the supplier’s after-sales service, including maintenance, technical support, training, etc. Evaluate supplier response time, repair capabilities and service quality.
8. Space and energy requirements: Consider the space and energy requirements of the CNC vertical lathe, such as the floor space and power requirements, to ensure that the machine tool can be installed in a suitable workshop environment.
9. Training and technical support: Understand the training and technical support provided by suppliers to ensure that operators are proficient in using and maintaining machine tools.
10. Refer to the experience of other users: Consult other users who have used the same model to understand their experience and opinions, so as to better evaluate the performance and reliability of the machine tool.

When purchasing a CNC vertical lathe, you need to comprehensively consider the above factors and make a decision based on your actual situation. Before purchasing, it is best to fully communicate and understand the supplier in order to make an informed choice.