When evaluating a carton box opener (also known as an automatic case erector), you must prioritize opening speed (measured in cases per minute), tape or glue application precision, and compatibility with different flute types (A, B, C, E). Ensure the machine features a high-quality vacuum suction system for reliable box grabbing and a PLC control system (such as Siemens or Omron) for stable operation. For high-volume environments, look for bottom-sealing consistency and a low-tape alarm sensor to prevent downtime.