YXYH-SG50 fully automatic test tube sealing machine is used for sealing test tubes of samples after various medical tests, effectively preventing aerosol contamination and reducing the risk of cross-infection during sample storage; ensuring laboratory biosafety and hospital specimen management regulations. One-click sealing, simple operation, standard multi-specification patented test tube rack with anti-slip function to prevent test tubes from falling off due to overturning of the test tube carrier, making it convenient for long-term cryopreservation of blood samples.