When choosing a vacuum dispensing system, it’s important to consider the material compatibility to ensure the system can handle the specific fluids or adhesives used in your production. Precision and accuracy are also crucial, as the system should offer consistent control over flow rates and dispensing volumes. Additionally, evaluate the system's throughput and speed to meet your production capacity. Integration with existing equipment or automated systems is essential for a seamless workflow. Finally, consider the ease of maintenance, including cleaning, part replacement, and overall system upkeep, to ensure long-term reliability and efficiency.