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How to properly maintain and upkeep a freeze-drying machine
2025-06-27
The application of freeze-drying machines in industries such as food, medicine, and biological products is becoming increasingly widespread. Freeze dryer can freeze substances below freezing point, and then remove moisture from the substances through vacuum evaporation, thus achieving the purpose of drying. The freeze-drying machine needs regular maintenance during use to ensure its normal operation and extend its service life. The following are the general steps for maintaining a freeze-drying machine: 1 **Cleaning and Disinfection: The freeze-drying machine should be cleaned immediately after use to remove residual substances and pollutants. Use warm water and mild cleaning agents to clean the inside and outside of the equipment, paying special attention to the cleanliness of key components such as containers, condensers, evaporators, etc. The disinfection steps should be carried out according to the specific requirements of the equipment and local regulations, which may include the use of disinfectants or ultraviolet disinfection. two **Inspection and lubrication: Regularly check the lubrication of the equipment to ensure that all moving parts are properly lubricated to reduce wear. Check if all valves and pipeline connections are tight and leak free. three **Calibrate temperature and pressure: Regularly calibrate the temperature and pressure controller according to the equipment's user manual to ensure its accuracy and stability. Inaccurate calibration may affect the freeze-drying effect and product quality. four **Maintenance of refrigeration system: Check and maintain the refrigeration system to ensure the normal operation of the compressor, condenser, and evaporator. Regularly replace or clean the filter, check the refrigerant level, and supplement or replace it if necessary. five **Regular inspection and maintenance of the vacuum system: Ensure the sealing of the vacuum system, regularly inspect and replace the vacuum pump oil, and maintain the stability of the vacuum degree. six **Record maintenance and operation: During the maintenance and operation process, detailed records of equipment status, maintenance and repair dates, operators, and other information should be kept for subsequent tracking and management. seven **Training and Safety: All operators should receive appropriate training to understand the correct operation and maintenance methods of the equipment, as well as safety regulations. Ensure compliance with all safety regulations during use.
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