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Compact All-in-one Liquid Nitrogen

Minnuo compact all-in-one liquid nitrogen generator is a simple plug-and-play liquid nitrogen solution. Built-in oil-free air compressor, PSA variable pressure adsorption nitrogen generator, chiller, helium compressor, and Dewar tank and controlled via a color touch screen for fully automatic operation at the touch of a button.

Estimated Liquid Nitrogen Generators Cost

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

Working principle

The compressed air passes through an oil-free air compressor and enters the PSA nitrogen generator after cold and dry suction and filtration, then passes through a de-bacterising overspeeder to produce sterile nitrogen with a dew point of -60°C. The sterile nitrogen enters the refrigerator and liquefies into liquid nitrogen.


  • Liquid nitrogen output: 10L-120L/day
  • Timer start/stop: you can freely set the start/stop time every day
  • Liquid level start/stop: If equipped with liquid nitrogen tank with liquid level meter, it can start/stop according to liquid level control and display liquid level.
  • Remote monitoring: MCGS remote monitoring, you can remotely download the history of operation records, online upgrade program, convenient remote maintenance
  • Totally enclosed box type compact design
  • Liquid nitrogen Dewar bottle (optional)

Liquid Nitrogen Production0.3-0.4L/H 8-10L/day0.8-1L/H 20-24L/day1.6-2L/H 40-50L/day3L/H
5L/H 120L/day
Voltage frequency220VAC380VAC 3P 50Hz
Equipment size(mm)750*850*17001150*850*20001250*2000*20001250*2000*20001600*2000*2000
Room size required(㎡)>5>6>10>15>15
Environmental temperature requirements0-30℃ Ground level, good ventilation
One metre of noise(dB)<60dB<60dB<60dB<60dB<65dB
Cooling methodsAir cooling
Nitrogen volume(m³/h)12468
Nitrogen dew point(℃)-60℃
Nitrogen pressure(Mpa)0.8
Recommendations for liquid nitrogen tank packages(L)1550100150250
Note:If non-standard voltage and frequency, altitude > 1000 m, purity ≥ 99.9, custom-made

Main Components of Nitrogen Generator

01. Electronic component​

02. Sterilization filter

03.Motor and cooling rotor

04. Heat exchanger

05. Oil filtration

06. Air filter​

How to Choose Liquid Nitrogen Plant?

  1.  Choose the right nitrogen concentration

    Incorrectly selected concentration can become a factor in a significant increase in the price by several times. A difference of 0.05% in concentration can double the cost of the system.

  2.  Calculate station performance

    Considering all consumer parameters, calculate the total amount of nitrogen consumed. Pay attention to the units of measurement, the flow must be normalized, m³/h at a pressure of 1 bar and a temperature of 20°C.

  3.  Consider the operating conditions

    All parameters of the station are specified under standard operating conditions of 20°C, The temperature rises above 38℃ will affect the air compressor, so be sure to keep the use of the site ventilation heat

  4.  Choose a compressor with a margin of 10%

    For the correct operation of the system, many factors must be taken into account: the nature of consumption, the number of peak loads, additional losses of compressed air, the volume of receivers, and much more.

  5. How Much Cost?

    Start a small 10L/day 99% purify liquid nitrogen generator price is about $27000. We promise a good price with top quality.

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