LN40B Nitrogen generator

‘LN40B-AC’ is the latest ‘air cooled’ Liquid Nitrogen Generator from Noblegen Products.

Utilizing the reliable and efficient PSA technique of separating Nitrogen and Oxygen is used to produce high-quality Nitrogen Gas which is then liquefied using our powerful cooling system.

The liquid nitrogen is stored within a suitable sized vacuum insulated tank and the product can be dispensed using a 1.5 meter vacuum insulated hose provided.

Other options of dispense methods are available on request.

Available in 2 versions, water-cooled and air-cooled. The water-cooled version requires a water chiller at an additional cost.

Nitrogen produced at 99% purity using our own PSA nitrogen generator.
Nitrogen injection system used for gas pre-cooling prior to liqueficiation.
Pressure Boost & No Loss systems increasing production efficiency


The Noblegen Cryogenics LN40B liquid nitrogen generator is your reliable and efficient on-site plug and produces a cryogenic solution with a small footprint, low power consumption, and low cooling water requirement making the LN40B one of the best solutions available on the market.

With cooling water or a chiller supplied the system can operate up to +52°c ambient temperatures making it suitable to operate in most parts of the World.

Simply connect the power, cooling water, and press start for the machine to automatically produce liquid nitrogen when needed.

An intelligent level sensor system means you can select the liquid level stop and start using the touch screen controller so you always have enough LN2.
The Pressure ‘BOOST’ system increases liquid nitrogen production with no additional power or cooling water required, coupled with the ‘No Loss’ pressure maintaining system making it the most efficient and intelligent GM-based technology generator available.


  •  Internet connectivity
  • SMS text messaging
  •  Closed Loop Water Chiller

Additional information

Cooling system

Air, Water


12 months



Hourly production capacity

1.25 L/hour

Production capacity

30 L/day

O2 percentage



> 99%

Tank volume

100 Litres


Up to 4.0 Bar g

Power consumption

3.0 KW, 3.0 KW (Excluding water chiller)

Power supply

200-240 50/60 HZ(1Ø+ neutral and earth)

Enclosure footprint

1.4 m x0.65 m, 1.4 m x 0.65 m (on wheels)

Enclosure height

1.75 m

Enclosure weight

350 KG

Noise level

<60 dBA

Cooling water requirement

5.0 KW

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Liquid Nitrogen Cost In The United States

Over 80% of The Market Is Overpaying For Liquid Nitrogen. Are You Too?