Jiangsu Hongbo offers high-performance PSA Oxygen Generators producing 1~300 Nm³/h of 93%±3% purity oxygen. Utilizing advanced Pressure Swing Adsorption technology with zeolite molecular sieves, our on-site oxygen generation systems eliminate cylinder logistics and reduce costs. Ideal for metal cutting, wastewater treatment, glass manufacturing, aquaculture, chemical processing, and more. Continuous 24/7 operation, customizable flow rates, and reliable performance backed by 16+ years of expertise.
PSA (Pressure Swing Adsorption) oxygen generators produce high-purity oxygen on-site using zeolite molecular sieve technology. Under pressure, nitrogen molecules are selectively adsorbed by the molecular sieve, allowing oxygen to pass through as the product gas. When the pressure is released, the adsorbed nitrogen is desorbed and vented, regenerating the sieve for the next cycle. Twin adsorption towers alternate between adsorption and regeneration, delivering a continuous, reliable oxygen supply.
Hongbo's PSA oxygen generators are engineered for industrial-grade performance with output ranging from 1 Nm3/h to 300 Nm3/h. The systems deliver oxygen purity of 93%±3% (meeting national standard oxygen content), with adjustable pressure from 0.01 to 0.6 MPa and dew point as low as -40°C to -70°C.
Oxygen Generator Diagram
The diagram above illustrates the core components and airflow path of a typical industrial PSA oxygen generator system, including air compressor, air treatment unit, adsorption towers, oxygen buffer tank, and control system.
Technical Indicators
Parameter
Specification
Oxygen Production
1~300 Nm3/h (Standard State)
Oxygen Purity
93%±3% (National standard oxygen content)
Oxygen Pressure
0.01~0.6 MPa (Gauge pressure, stable and adjustable)
Oxygen Dew Point
-40°C ~ -70°C (Atmospheric Dew Point)
Technical Parameters
Model
(Nm3/h) Gas production
(Nm3/min) Air consumption
DN(mm) Imported DN
DN(mm) Exported DN
Air nominal diameter DN
L*W*H (mm) Host
HBF093-1
1
0.2
DN15
DN15
BL0010
800*650*1720
HBF093-2
2
0.4
DN15
DN15
BL0010
950*950*1500
HBF093-3
3
0.6
DN15
DN15
BL0010
1050*900*1865
HBF093-5
5
1.0
DN20
DN15
BL0010
1450*900*1825
HBF093-10
10
2.0
DN32
DN15
BL0020
1450*900*1825
HBF093-15
15
3.0
DN40
DN25
HBHAD-4-0
1800*950*1940
HBF093-20
20
4.0
DN40
DN25
HBHAD-6-0
1850*1025*2100
HBF093-25
25
5.0
DN50
DN25
HBHAD-6-0
2000*1050*2210
HBF093-30
30
6.0
DN50
DN25
HBHAD-8-0
2000*1050*2530
HBF093-50
50
10.0
DN65
DN25
HBHAD-13-0
2200*1250*2720
HBF093-60
60
12.0
DN65
DN40
HBHAD-15-0
2250*1300*2850
HBF093-80
80
16.0
DN80
DN40
HBHAD-20-0
2350*1550*3060
HBF093-100
100
20.0
DN100
DN40
HBHAD-25-0
2500*1600*3330
HBF093-120
120
24.0
DN100
DN40
HBHAD-30-0
2600*1700*3670
HBF093-150
150
30.0
DN150
DN40
HBHAD-40-0
4700*1500*2980
HBF093-180
180
36.0
DN200
DN40
HBHAD-40-0
4700*1600*3370
HBF093-200
200
40.0
DN200
DN40
HBHAD-60-0
5000*1600*3330
HBF093-240
240
48.0
DN200
DN50
HBHAD-60-0
5200*1700*3670
HBF093-300
300
60.0
DN250
DN50
HBHAD-80-0
5900*1600*4520
Working Principle of PSA Oxygen Generator
The PSA (Pressure Swing Adsorption) oxygen generator operates on the principle that zeolite molecular sieves selectively adsorb nitrogen molecules under pressure while allowing oxygen molecules to pass through.
How It Works
Step 1 - Air Compression & Pretreatment: Compressed air is filtered, dried, and purified to remove oil, water, and particulate matter. Clean, dry feed air is essential for optimal molecular sieve performance and longevity.
Step 2 - Adsorption Phase: Purified compressed air enters the adsorption tower filled with zeolite molecular sieve. Under pressure, nitrogen (N2) molecules are adsorbed into the micropores of the sieve material, while oxygen (O2) and other inert gases pass through and exit as product gas at 90%–95% purity.
Step 3 - Regeneration Phase: When the sieve reaches its adsorption capacity, the tower is depressurized. The adsorbed nitrogen is released (desorbed) and vented to the atmosphere, regenerating the molecular sieve for the next cycle.
Step 4 - Continuous Operation: Two adsorption towers operate in alternating cycles — one tower adsorbs while the other regenerates. This synchronized switching ensures uninterrupted oxygen supply, 24 hours a day, 7 days a week.
Key Technical Features
Dual-tower design for continuous, stable oxygen output
Automatic PLC control for unattended operation
Oxygen purity adjustable from 90% to 95%+
Low energy consumption with optimized cycle timing
Modular design for easy expansion and maintenance
Key Advantages of Hongbo PSA Oxygen Generators
Cost-Effective On-Site Oxygen Production
Eliminate cylinder logistics: No more ordering, storing, handling, or renting oxygen cylinders. Generate oxygen exactly where you need it.
Reduce operating costs: On-site generation cuts oxygen costs by 50%–80% compared to delivered liquid or cylinder oxygen.
Fixed pricing: Avoid fluctuating supplier prices. Your oxygen cost becomes stable and predictable.
Reliable & Continuous Supply
24/7 operation: PSA systems are designed for round-the-clock continuous duty with automatic tower switching.
No supply disruptions: Independent of external suppliers — no delays, no minimum order quantities, no logistics failures.
Consistent purity: Advanced control systems maintain stable oxygen purity within 93%±3% throughout operation.
Customizable & Scalable
Wide flow range: From 1 Nm3/h to 300 Nm3/h, with modular configurations for larger demands.
Flexible purity: Options from 90% combustion-grade to 95%+ industrial-grade oxygen.
Easy expansion: Add additional modules as your production needs grow.
Proven Quality & Support
16+ years experience: Hongbo has manufactured industrial gas equipment for over 16 years, serving global clients.
Strong R&D: 1 invention patent, 21 utility model patents, and 3 software copyrights.
Professional team: 16 engineers and 18 after-sales service staff providing comprehensive technical support.
Global service: Online commissioning guidance and well-trained engineers available for overseas service.
Industrial Applications of PSA Oxygen Generators
Industrial oxygen generators using PSA technology provide on-site, continuous oxygen supply across a wide range of industries:
Metal Fabrication & Welding
Oxygen is essential for oxy-fuel cutting, welding, and brazing. The right purity level delivers better flame temperature, faster cutting speeds, and cleaner edges in steel fabrication shops and manufacturing plants.
Water & Wastewater Treatment
Oxygen injection significantly enhances biological treatment efficiency, accelerates oxidative processes, and supports aerobic digestion in both municipal and industrial wastewater treatment plants.
Glass Manufacturing
Oxygen-enriched combustion in glass melting furnaces improves combustion efficiency, reduces NOx emissions, enhances melting quality, and can cut fuel consumption by 20%–40%.
Pulp & Paper Industry
Oxygen applied in delignification and bleaching stages reduces chemical usage, lowers pollution loads, and improves paper quality in pulp mills.
Chemical & Petrochemical Production
Oxygen is essential for oxidation reactions, catalyst regeneration, and combustion intensification in plants producing ethylene, methanol, and other chemicals.
Aquaculture & Fish Farming
Oxygen generators maintain optimal dissolved oxygen levels in fish tanks, hatcheries, and during fingerling transport, promoting healthier fish at higher stocking densities.
Other Applications
Medical oxygen supply for hospitals and clinics (with appropriate certification)
