Why do biomedicine use air compressors

The biomedical industry has extremely high requirements for the cleanliness of the production environment, the accuracy of the process, and the safety of the product. As a key equipment for providing compressed air, the air compressor (air compressor) plays an indispensable role in the production of biomedicine. The following are the main reasons for the use of air compressors in the biomedical industry and specific application scenarios:

1. Provide clean compressed air to ensure the aseptic production environment

• aseptic production requirements:
  biopharmaceutical production (such as vaccines, antibodies, cell therapy, etc.) needs to be carried out in a sterile environment to prevent microbial contamination from causing product deterioration or failure. The compressed air provided by the air compressor needs to be strictly filtered to reach ISO 8573-1 Class 0 or Class 1 standards (I. e., no oil, no particles, no microorganisms) ensure that gases that come into direct contact with the drug product are not introduced into the source of contamination.
• Advantages of oil-free air compressor:
  traditional oil-free air compressors may pollute compressed air due to lubricating oil leakage or aerosol formation, while oil-free air compressors (such as water-lubricated screw air compressors and dry oil-free screw air compressors) replace lubricating oil by physical means (such as water lubrication and ceramic coating) to completely avoid oil pollution and meet the strict requirements of the biomedical industry on air cleanliness.

2. Drive pneumatic equipment to realize automatic production

• pneumatic Control and Execution:
  pneumatic valves, cylinders, pumps and other equipment are widely used in biomedical production to control liquid flow, material handling, packaging and other links. As a power source, compressed air has the advantages of fast response, clean and pollution-free, and low cost. It is the key to realize production automation.
• Typical application scenarios:
  • filling line: Compressed air drives the cylinder of the filling machine to accurately control the filling volume of the liquid medicine.
  • Sorting system: Pneumatic valve sorting different specifications of drugs or packaging containers.
  • Freeze dryer: Compressed air is used for vacuum control in the freeze-drying process.
  • Cell incubator pneumatic agitation system to maintain uniform distribution of cells.

3. Maintain process stability and ensure product quality

• precise air pressure control:
  biomedical processes (e. g., fermentation, filtration, chromatography) are extremely sensitive to fluctuations in air pressure. The air compressor controls the air pressure fluctuation range within ± 0.01MPa through frequency conversion speed regulation or constant pressure control technology to ensure the stability of process parameters and avoid the difference between product batches caused by air pressure fluctuation.
• Temperature and Humidity Control:
  some processes, such as cell culture, require strict control of ambient temperature and humidity. After the compressed air is dried, the environmental humidity can be reduced to prevent the growth of microorganisms; at the same time, the temperature of the compressed air can be adjusted to provide suitable conditions for the process.

4. Support special process requirements

• purging and Cleaning:
  in the cleaning validation (Cleaning Validation) of bioreactors, pipes, vessels, etc., high-pressure oil-free air is used to purge residues to ensure no cross-contamination. For example, in monoclonal antibody production, compressed air is used to purge the chromatography column to remove residual protein.
• Pneumatic conveying:
  the transportation of powdered or granular raw materials (such as auxiliary materials and powder) should rely on compressed air to avoid artificial contact pollution. For example, in the production of solid formulations, compressed air drives a vacuum delivery system to deliver the drug powder from a tank to a tablet press.
• Fermentation gas supply:
  in the process of microbial fermentation, it is necessary to introduce sterile air into the fermentation tank to provide oxygen for the growth of microorganisms. The air compressor shall be equipped with a sterilizing filter to ensure that the compressed air is sterile and to prevent the fermentation broth from being contaminated by bacteria.

5. Compliance with regulatory and certification requirements

• industry specifications:
  the biomedical industry needs to comply GMP (Good Manufacturing Practice), FDA (US Food and Drug Administration), EMA (European Medicines Agency) there are clear requirements for the quality of compressed air. For example, the FDA requires that compressed air in direct contact with pharmaceutical products meet Class 1 standards (oil content ≤ 0.01 mg/m & sup3;).
• Authentication and Verification:
  compressors are certified (e. g. ISO 8573-1, CE, UL) and regularly verified (e. g. particle counting, microbiological testing) to ensure continued compliance with production requirements.

6. Energy saving and environmental protection needs

• high efficiency and energy saving:
  biopharmaceutical production usually runs continuously for 24 hours, and the energy consumption cost is high. Permanent magnet variable frequency screw air compressor can reduce energy consumption by 20%-50% through intelligent speed regulation, which is in line with the trend of energy saving and emission reduction in the industry.
• Low carbon emissions:
  oil-free air compressors reduce the use of lubricating oil and waste disposal, reduce the impact on the environment, and help enterprises achieve carbon neutral goals.

Typical application cases

• vaccine production:
  in inactivated vaccine production, compressed air is used to drive the filling machine, purge the biological safety cabinet, and pass into the fermenter to provide sterile air. After a vaccine enterprise adopts water-lubricated oil-free air compressor, the qualified rate of products is increased by 5%, and the annual lubricating oil treatment cost is saved by 200000 yuan.
• cell therapy:
  in CAR-T cell therapy, compressed air is used to drive the cell sorter and maintain a stable incubator air pressure. Oil-free air ensures that the cells are not contaminated with oil, improving treatment safety.
• Injection production:
  in the production of sterile injection, compressed air is used to purge ampoules, drive the bottle washing machine, and pass into the freeze dryer to control the vacuum. Constant pressure control increases the freeze-drying efficiency by 15% and the moisture content of the product is more stable.