Why Do Medical Oxygen Cylinders Need Internal Polishing?

In the medical field, oxygen cylinders are vital to ensure patients’ breathing safety. What many people may not know is that medical oxygen cylinders usually undergo “internal polishing” before leaving the factory—a critical process step.

What is internal polishing?

Internal polishing refers to the treatment of the inner surface of the cylinder, making it smoother and cleaner.

Why is it necessary?

• Ensure oxygen purity: Removes residual iron filings, oil, welding slag, and other impurities inside the cylinder.

• Improve safety: A smoother inner wall reduces friction and particle shedding, minimizing the risk of oxidation or ignition under high-pressure oxygen.

• Extend cylinder lifespan: Reduces corrosion and deposits, making the cylinders more durable.

• Meet medical standards: International and national medical gas cylinder regulations require strict cleanliness of the inner wall.

  
  

Therefore, internal polishing is not just a “detail” in manufacturing—it is an essential step to guarantee medical safety.

At our company, all medical oxygen cylinders are strictly manufactured in compliance with relevant standards, with internal polishing and oil-free cleaning to ensure every cylinder delivers safe and pure oxygen.