When evaluating a curtain track bending machine, you must prioritize bending precision (tolerance within ±0.5mm) and material compatibility. Ensure the machine can handle various materials such as aluminum alloy, PVC, and stainless steel. Key features should include CNC programmable controls for complex curves, adjustable bending radii, and a high-torque motor to ensure smooth operation without deforming the track profile. For industrial use, look for machines with automatic feeding and cutting integration to maximize production efficiency.