When considering the purchase of a CNC lathe, there are several factors that should be taken into account to ensure that the machine will meet your specific needs and requirements:

1. Size and capacity: Consider the size of the workpieces that will be machined on the lathe and ensure that the machine has the necessary capacity to handle them. Also consider the size of the machine itself and make sure it will fit in the space where it will be located.
2. Precision and accuracy: CNC lathes are known for their precision and accuracy, but some machines may be more accurate than others. Consider the tolerance requirements of the workpieces and make sure the machine has the necessary precision to meet those requirements.
3. Speed and power: Consider the speed and power requirements of the machine and make sure it has the necessary spindle speed and horsepower to handle the workload.
4. Control system: Consider the type of control system that the lathe uses, whether it’s a simple 2-axis or a more advanced multi-axis. Some systems may be more user-friendly or offer more advanced features than others.
5. Tooling options: Consider the type of tooling options that are available for the machine, such as different types of cutting tools, tool holders, and tool magazines. Make sure that the lathe is compatible with the tooling that you will be using.
6. Maintenance: Consider the maintenance required for the lathe, such as the type of lubrication system, the frequency of replacement of wear parts and the overall ease of maintenance.
7. Training and support: Consider the level of training and support that the manufacturer provides, such as training classes, online resources, and technical support.
8. Cost: Consider the cost of the lathe, including any additional costs such as tooling and maintenance. Compare the cost of different machines to make sure you’re getting the best value for your money.

By taking these factors into consideration, you can make an informed decision when buying a CNC lathe that will meet your specific needs and requirements. It is recommended to visit the manufacturer or supplier to see the machine in operation, or even better to test the machine before buying it.