Choosing a CNC Milling Machine - https://virmer.com/catalog/cnc-milling-machines/

Key criteria for selection include:

Work area size: Determines the maximum dimensions of the product.
Machine frame: Should be robust and well-welded to minimize vibrations.
Spindle: Determines productivity; some machines feature multiple spindles or automatic tool changers.
Motors and guides: Stepper motors are often sufficient, and accuracy depends on well-aligned guides and helical racks.

Additional features like a coolant system, rotary device, dust extraction, vacuum table, and vibration dampeners can further optimize the machine's operation.