Nitrogen generator–Nitrogen purity: 99.99%

Supports customization with a processing capacity of up to 70630 CFM (cubic feet per minute).

Design features

Fully Automatic Operation:Automatic start/stop and operating-cycle switching provide fully automated system operation.
PLC-Controlled Pneumatic Valves:Pneumatic valve switching is automatically controlled by the PLC, ensuring accurate sequencing and reliable operation.
Real-Time Nitrogen Monitoring:Nitrogen purity and flow rate are continuously monitored online in real time.
Off-Spec Nitrogen Alarm & Protection:An alarm is activated when nitrogen purity falls below the specified value. If the off-spec condition persists for a preset period, the system automatically shuts down for protection.
Automatic CMS Compaction System:Equipped with an automatic Carbon Molecular Sieve compaction device to maintain proper packing density and help prevent CMS pulverization caused by bed movement.
Digital Touchscreen Display:The digital touchscreen provides real-time display and monitoring of key operating parameters, including pressure, nitrogen purity, flow rate, and system operating status.
Energy-Efficient Pressure Equalization:An optimized unequal-pressure equalization process improves nitrogen recovery efficiency and indirectly reduces overall energy consumption by approximately 5%.

The PSA (Pressure Swing Adsorption) Nitrogen Generator operates with two pressure vessels (adsorption towers) that alternate between adsorption and regeneration cycles. Each tower is filled with Carbon Molecular Sieve (CMS), a specialized adsorbent that selectively adsorbs oxygen molecules from compressed air.Compressed air enters Tower A, where oxygen molecules are preferentially adsorbed by the CMS, while nitrogen passes through the adsorption bed and is collected as product gas. While Tower A is in the adsorption cycle, Tower B simultaneously undergoes depressurization and regeneration. During regeneration, the oxygen previously adsorbed by the CMS is desorbed and discharged to the atmosphere with the assistance of a small amount of nitrogen purge gas.When the CMS in Tower A reaches its predetermined adsorption capacity and Tower B has completed regeneration, the system automatically switches operating modes: Tower B begins adsorption while Tower A undergoes regeneration. The two towers continuously alternate between adsorption and regeneration under automatic PLC control, ensuring a continuous supply of nitrogen at the specified purity.

To ensure stable nitrogen purity and reliable system performance, the PSA nitrogen generator should operate under the following recommended conditions:

  • Nitrogen purity: 99.99%
  • Inlet pressure: 0.5 – 0.8 MPa
  • Inlet temperature: ≤ 40℃
  • Nitrogen dew point: ≤ -40℃
  • Switching cycle: 45 – 60 seconds
  • Ambient temperature: ≤ 40℃
  • Voltage / frequency: 220V / 50Hz
  • Noise level: ≤ 75 dB

For the best operating result, the generator should be supplied with clean and stable compressed air. Proper pre-treatment, including filtration and air drying, is recommended to protect the carbon molecular sieve, maintain nitrogen purity, and extend equipment service life.

ModelNitrogen Production (m³/h)Inlet Pipe SizeOutlet Pipe SizeOverall Dimensions (H × L × W, mm)Effective Air Consumption (m³/min)
LYZD-E55DN15DN151936 × 1000 × 6000.43
LYZD-E1010DN20DN152205 × 1050 × 6500.86
LYZD-E1515DN20DN151900 × 1000 × 6001.30
LYZD-E2020DN25DN252150 × 1250 × 5501.73
LYZD-E2525DN32DN252400 × 1100 × 7002.16
LYZD-E3030DN32DN252600 × 1150 × 8002.60
LYZD-E3535DN32DN252600 × 1200 × 8003.03
LYZD-E4040DN40DN252600 × 1400 × 8003.46
LYZD-E5050DN40DN252718 × 1750 × 7654.33
LYZD-E6060DN40DN402707 × 2050 × 9005.20
LYZD-E7070DN50DN403087 × 2100 × 11306.06
LYZD-E9090DN50DN402745 × 2300 × 10507.80
LYZD-E120120DN50DN403160 × 2350 × 120010.40
LYZD-E130130DN50DN402890 × 2200 × 120011.26
LYZD-E150150DN65DN402890 × 2300 × 120013.00
LYZD-E170170DN65DN402900 × 2500 × 135013.86
LYZD-E180180DN65DN403232 × 2700 × 145015.60
LYZD-E200200DN80DN403232 × 2800 × 145017.33

Note:The data listed in this table are based on the adsorption pressure of 0.8MPa (gauge pressure) as the raw air, 20°C ambient temperature, and 80% relative humidity as the design basis. The data provided in this sample is for reference only.

The 99.99% PSA Nitrogen Generator is suitable for industries and processes that require a reliable, continuous, and high-purity nitrogen supply.

Food and Beverage Packaging

Used for nitrogen flushing and modified atmosphere packaging to reduce oxidation, protect product freshness, and extend shelf life.

Electronics and Semiconductor Manufacturing

Provides high-purity nitrogen for soldering, reflow processes, electronic assembly, and moisture-sensitive manufacturing environments.

Pharmaceutical Production

Suitable for production, packaging, and storage processes that require clean and stable nitrogen to support product quality and process safety.

Chemical Processing

Used for inerting, blanketing, purging, and oxidation prevention in chemical storage tanks, pipelines, and processing systems.

Laboratory and Research Use

Provides a convenient on-site nitrogen source for analytical instruments, sample handling, and controlled testing environments.

Laser Cutting and Metal Fabrication

Supplies high-purity nitrogen for laser cutting applications, helping improve cutting quality, reduce oxidation, and achieve cleaner edges.

Tire Inflation and Inert Gas Blanketing

Used for stable tire inflation and for blanketing applications where oxygen reduction and process protection are required.

Explore More Industry Applications

Lingyu offers much more than top-quality compressed air dryers:

– As an air treatment and gas purification manufacturer, we can meet all your compressed air quality and industrial gas needs. This includes various filtering equipment and customized air quality services.

– Our company is always ready to provide explanations. Just share your air quality requirements and we can develop the best system for you.

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