Liquid Nitrogen Generator

On‑Site Cryogenic Generator for Continuous LN₂ Supply

Cryogenic Equipment Liquid Nitrogen Generator PRODUCTS

Continuous Cryogenic Supply Cryogenic Equipment Energy‑Efficient LN₂ Generator Industrial Nitrogen Production Laboratory LN₂ Supply Liquid Nitrogen Generator LN₂ Production System Medical Cryogenic Generator On‑Site Nitrogen Generator

The Liquid Nitrogen Generator is an advanced cryogenic system engineered to produce liquid nitrogen on‑site from ambient air. Using nitrogen separation technology such as pressure swing adsorption (PSA) or membrane filtration combined with cryogenic cooling, it delivers a continuous supply of high‑purity LN₂ without dependence on external deliveries. Compact and efficient, the generator features automated controls, energy‑saving design, and robust safety systems. It is widely applied in laboratories, medical facilities, food processing, electronics manufacturing, and industrial operations requiring reliable liquid nitrogen production.

Request a Quote

Description

Parameters

Files

Product Overview

A liquid nitrogen generator is a system designed to liquefy nitrogen from the air and provide a continuous supply of liquid nitrogen. The equipment compresses, cools, and separates air, lowering the temperature of nitrogen to approximately −196 °C, where it condenses into liquid form. The produced liquid nitrogen is then stored in a cryogenic container for stable and continuous supply.

With a compact structure and stable operation, the generator enables on-site production of liquid nitrogen, reducing the cost and losses associated with transportation and storage. It is widely used in research laboratories, food processing, biotechnology, and various cryogenic engineering applications.

Working Principle

The liquid nitrogen generator uses ambient air as the raw material. Air is first compressed by an air compression system and then cooled through a cooling unit. During the purification and separation process, oxygen, nitrogen, and other components in the air are separated.

The nitrogen is then further cooled through a low-temperature heat exchange system. As the temperature gradually decreases to the liquefaction point of nitrogen, it condenses into liquid nitrogen and flows into a cryogenic storage system for collection and supply.

The entire process is monitored and controlled by an automatic control system, ensuring stable liquid nitrogen production, reliable purity, and safe equipment operation.

Key Features

Compact design with plug-and-play operation, requiring minimal installation space
Automatic refill function that maintains liquid nitrogen levels as needed
Low energy consumption with stable and reliable long-term operation
On-site liquid nitrogen production for immediate use, reducing transport and storage costs
More convenient and efficient compared with traditional liquid nitrogen purchasing and manual supply
Well-designed system structure with simple maintenance and long service life
Comprehensive technical support and fast service response to ensure stable operation

Applications

Scientific Research:Cryogenic experiments and low-temperature physics research.
Biological Storage:Preservation of biological samples, cells, and tissues.
Medical & Biotechnology:Laboratory research and biomedical experiments.
Food Processing:Rapid food freezing and cryogenic food processing.
Material Testing:Low-temperature material treatment and testing.
Industrial Processes:Cryogenic production processes and laboratory environments.

Technical Specifications:

Model	Liquid Nitrogen Output(L/Day)	Power(KW)	Nitrogen Gas Purity	Nitrogen Gas Source Pressure(MPa)	Power Type(AC)	Cooling Type	Cooling Water Consumption
8L/day	8	1KW	≥99.9%	0.8	220V	Air cooling	/
10L/day	10	1.2-1.5KW	≥99.9%	0.8	220V	Air cooling	/
20L/DAY	20	4.5KW	≥99.9%	0.8	220VAC 50Hz 1P	Air cooling	/
40L/DAY	40	7.5KW	≥99.9%	0.8	220VAC 50Hz 1P	Air cooling	/
80L/DAY	80	12.5Kw	≥99.9%	0.8	220VAC 50Hz 1P 380VAC 50Hz 3P	Air cooling	/
120L/DAY	120	15KW	≥99.9%	0.8		Air cooling	/
240L/DAY	240	27KW	≥99.9%	0.8	220VAC 50Hz 1P 380VAC 50Hz 3P	water cooling	＞4
480L/DAY	480	45KW	≥99.9%	0.8		water cooling	＞8
720L/DAY	720	55KW	≥99.9%	1.6		water cooling	＞8
960L/DAY	960	84Kw	≥99.9%	0.8		water cooling	＞15
1200L/DAY	1200	92KW	≥99.9%	1.6		water cooling	＞15
1920L/DAY	1920	155KW	≥99.9%	0.8		water cooling	＞30
2400L/DAY	2400	190KW	≥99.9%	0.8		water cooling	＞37