When considering purchasing a Press Brake machine, some factors to consider include:

1. The type of material and thickness that will be bent and the minimum and maximum bend radius required.
2. The size and weight of the parts to be bent, and the machine’s working envelope and capacity.
3. The number of axis of machine and its capability for multi-axis movements.
4. The accuracy, repeatability, and precision required for the bent parts.
5. The available options for tooling, such as different die and punch sets.
6. The ease of programming and operation of the machine, including the availability of software and the ease of setup.
7. The safety features of the machine and operator safety measures.
8. The reputation and service network of the manufacturer, and the availability of technical support and after-sales service.
9. The current automation, features and the power of the machine you are looking for.
10. The overall cost and return on investment.

It is important to have clear and specific needs before making a purchasing decision. It would be helpful to have a professional assessor or a application engineer from the manufacturer to evaluate the machine and its suitability for your application before making a final decision.