A vial crimper is a handheld or benchtop tool used to securely seal vials with aluminum or metal caps, ensuring a tight and leak-proof closure. This device is essential in laboratories, pharmaceutical manufacturing, and research settings where maintaining sample integrity is crucial. Vial crimpers come in various sizes to accommodate different vial and cap dimensions. The crimping process involves placing the cap on the vial's neck and applying force to crimp the metal, securing the cap in place. This ensures the contents are protected from contamination, evaporation, and leakage. Manual crimpers require physical effort, while automated versions provide consistent pressure and are suitable for high-volume applications. Vial crimpers are critical for packaging sterile solutions, reagents, and other sensitive materials.