• Liquid nitrogen machine industrial equipment supplier

Liquid nitrogen machine industrial equipment supplier

Nitrogen flow rate: 150Nm3/h
Working pressure: ≥ 0.8Mpa
Compressed air consumption: 10Nm3/min
Nitrogen purity: ≥ 99.999%
Nitrogen outlet pressure: 0.1-0.65Mpa (adjustable)

Product Details


Liquid nitrogen machine is essential equipment in the industrial production field, consisting of air compressors, air coolers, air separation equipment, liquid nitrogen storage and control systems, and other equipment

Liquid nitrogen is widely used in various industrial production fields, such as medical and pharmaceutical industries, glass production industries, food industries, etc

With the continuous development of industry, people’s requirements for the purity of liquid nitrogen are becoming higher and higher. Therefore, our factory has designed and manufactured high-purity liquid nitrogen machines to meet the market demand

Liquid nitrogen machine Technical Parameter

Project parameters
Model PG-150
Nitrogen flow rate 150Nm3/h
Working pressure ≥ 0.8Mpa
Compressed air consumption 10Nm3/min
Nitrogen purity ≥ 99.999%
Nitrogen outlet pressure 0.1-0.65Mpa (adjustable)
Nitrogen dew point ≤ -40 ℃
Power supply voltage 220V/50HZ
Pneumatic valve SKF mechanical
machine factory


Whether it is catalytic deoxygenation or chemical deoxygenation, ordinary liquid nitrogen machine require hydrogen gas. However, some regions lack a source of hydrogen gas,

and factories need to set up specialized ammonia decomposition hydrogen production devices because ammonia gas is expensive and prone to explosion risks

Therefore, we adopt a carbon-based purification device that does not require any hydrogen gas. At a certain temperature,

the residual oxygen in nitrogen (99.9%) undergoes an oxygen combustion reaction with the carbon catalyst to produce CO2.

The Liquid nitrogen machine purification device then removes CO2 and water, and impurities in the nitrogen are removed through a precision filter to obtain high-purity nitrogen gas (99.999%). Its characteristics are that carbon deoxidizers are added regularly and hydrogen gas is not required.

The system has advanced technology, good stability, and high nitrogen purity;

This device is equipped with automatic fault alarm and shutdown functions; Low moisture content, and atmospheric dew point ≤ -60 ℃; The deaerator and heater are made of high-temperature resistant materials, which are safe and reliable.

What equipment is needed

Equipment NameQuantity
Nitrogen generator1 nos
Cold drying machine1 nos
Filter3 nos
Screw air compressor1 nos
Carbonized purification 1 nos
Air storage tank1 nos
Nitrogen gas storage tank2 nos

Liquid nitrogen machine production process

Liquid nitrogen machines usually use two adsorption towers in parallel, and the machine is strictly controlled by a fully automatic controller control system according to specific programmable procedures. They alternately perform pressurized adsorption and decompression regeneration to complete the separation of oxygen and nitrogen and obtain high-purity nitrogen.

There are two adsorption towers filled with carbon molecular sieves in the PSA carbon molecular sieve nitrogen production device. Clean and dry compressed air enters the pressure swing adsorption nitrogen production device

and flows through the adsorption tower filled with carbon molecular sieves. Compressed air flows through the adsorption tower from bottom to top,

Liquid nitrogen machines use molecular sieves to adsorb nitrogen and oxygen at different pressures. Oxygen, water, and carbon dioxide will be separated in the adsorption tower,

and the two adsorption towers will alternately adsorb and regenerate to produce nitrogen and liquid nitrogen with a stable flow rate and purity

The switching between the two adsorption towers of this liquid nitrogen machine is automatically completed by a programmable valve pneumatic valve controlled by PLC


Q & A

Q: What is the purity of nitrogen that this machine can produce?

A: This is a customized machine that we manufacture according to your requirements, and its purity can be 99.9%-99.999%.

Q: Does this liquid nitrogen machine require the use of ammonia gas?

A: This is a machine that uses the latest technology and does not require the use of ammonia gas.

Q: What is your after-sales policy?

A: If there are any problems within 1 year without human damage to the machine, free maintenance will be provided.