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Oxygen Filling Station

MINNUO offers oxygen generators with customizable cylinder filling plants (CFPs) that produce medical-grade oxygen up to 95% purity. Our equipment adheres to applicable codes like ASME, ANSI, NEMA, and CE and can meet CRN and CSA standards.

Estimated Oxygen Filling Station Cost

The approximate cost will be:
Oxygen concentration (%)
Productivity (m 3 / h)
Oxygen pressure (bar)
Delivery type

Oxygen Cylinder Refilling System

MINNUO offers oxygen generators with customizable cylinder filling plants (CFPs) that produce medical-grade oxygen up to 95% purity. Our equipment adheres to applicable codes like ASME, ANSI, NEMA, and CE and can meet CRN and CSA standards. The CFPs provide on-demand oxygen 24x7x365 for medical and industrial needs, and can be tailored to specific requirements.


Minnuo Group is a professional manufacturer of oxygen & nitrogen generators, with over 22 years of experience in the industry. Our products are known for their quality and reliability, and are used by businesses and individuals all around the world. We’re dedicated to providing our customers with the best possible products and service, and always put our customers first.

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   Features of Oxygen Filling Station​

MINNUO group is a leading manufacturer of PSA, VPSA, Cryogenic air separation technology, and specialized oxygen production solutions in China.We produces a complete set of oxygen cylinder filling sysyterm, which can fill 8-100 oxygen cylinders per day. Complete equipment includes feed air compressor, air dryer, oxygen generator, oxygen compressor and cylinder filling rack. The oxygen compressor pressurizes the oxygen to 2,200 psig (15,169 kPa or 151.6 barg) before feeding it to a high pressure manifold that can fill up to 10 cylinders at a time. These cylinder filling machines operate automatically and produce a nominal 93% oxygen. For special applications, an optional high-purity module can be added to the device to increase the oxygen concentration to 99% .

  • MINNUO offers a full range of high pressure oxygen cylinder filling systems capable of filling 10 to 100 medical oxygen cylinders per day at pressures from 150 to 200 bar.
  • The MINNUO oxygen cylinder filling system is designed and produced strictly according to the industry standard, and the technical performance of the product is safe and reliable. The oxygen cylinder filling system adopts the design of low speed and heavy load, which can effectively ensure the service life of wearing parts while reducing the noise and vibration of the equipment.

Main Compents of PSA Oxygen Generator

PLC Panel

simens logo for our nitrogen plant PLC Panel

Process nitrogen anlyzer ,Core components imported from Germany

Molecular Sieve from JALOX,UOP , CMS

Molecular Sieve from JALOX, UOP ,CMS

nitrogen plant manufacturer

Germany pneumatic valves

nitroten plant Germany pneumatic valves from burkert

Solenoid valves

Solenoid valves - AirTAC

ASME standard air tank

How to choose the right PSA oxygen generator?

1. Calculate how many cubic meters of oxygen per hour are required?

There are two types of production of oxygen 

  • Direct connection to the hospital oxygen supply system
  • In Hospital oxygen production, each patient requires oxygen of 20 l/mins, requiring 1.2 m³ /hour.
  • Filled oxygen cylinders
  • For filling oxygen cylinders, it is necessary to determine 1. the type of oxygen cylinder and 2. the working pressure.

       eg, 40L/200bar oxygen cylinder, 40*200=8000L, about 8m³ of oxygen capacity, then multiply, e.g., filling 100 cylinders/day.100*8=800 m³ of oxygen /day. the oxygen plant working 20 hours, 800/20= 40, then 40 m³ oxygen machine is your model

2、Tell us the altitude of your local area

Normal poster below 1km. Higher altitudes require additional compressors.

3、Determine your local voltage and frequency

The voltage in Australia is 240V and the frequency is 50HZ.

The voltage in Belgium, France is 230V and the frequency is 50HZ.

Getting Your Oxygen Expert

We have a professional technical team, come and compare prices and services

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Frequent Asked Question

If you want to know how to maintain the equipment, please contact our technical service department on

Our technical service team will give you all support and all necessary information.

Return of investment (ROI) is calculated as 1-2 years. There are many local factors to consider, such as electricity bills, labor, etc.. If you wish to receive a ROI for your project, please contact us on

Installation time depends on the complexity of the equipment supplied. It can take from 2 days to a week.The start-up also includes a basic training of the operators on site.

The startup steps are determined by the type of system you have – only Nitrogen/Oxygen generator, stand alone, skid mounted or containerized. For the filling station, The start-up steps are very easy, you can refer to the operation manual sent to you with the equipment system. If you encounter any problems, Our service team is here to support you anytime (24/7/365).

To increase your capacity, you can use a large Oxygen Plant or add another Oxygen Plant. Please contact us on for more details.

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