A PSA nitrogen generator produces N₂ on-site by separating it from compressed air using carbon molecular sieve (CMS). At elevated pressure, CMS adsorbs O₂ while N₂ passes through as product gas. Two towers alternate: one adsorbs, the other regenerates. Output: 1–2000 Nm³/h N₂ at 95%–99.999% purity. Feed: clean compressed air 0.6–0.8 MPa, dew point ≤-40°C. Startup to rated purity: ≤30 minutes.
| Parameter | Value |
| Principle | Pressure Swing Adsorption (PSA), twin-tower |
| Adsorbent | Carbon Molecular Sieve (CMS) |
| N₂ Flow Rate | 1–2000 Nm³/h |
| N₂ Purity | 95%–99.999% |
| Outlet Pressure | 0.1–1.0 MPa (adjustable) |
| Feed Air | 0.6–0.8 MPa, dew point ≤-40°C, oil-free |
| Startup Time | ≤30 minutes to rated purity |
| Residual O₂ | <1 ppm (99.999% mode) |
| Control | PLC automatic; optional HMI touch screen |
| N₂ Purity | Application |
| 95%–99% | General purging, tyre inflation, conveyor blanketing |
| 99%–99.9% | Food MAP packaging, beverage blanketing |
| 99.9%–99.99% | Chemical blanketing, pipeline purging, oil & gas |
| 99.99%–99.999% | SMT soldering, laser cutting assist gas |
| 99.999% | Semiconductor, pharma sterile filling |
What data do I need to size a PSA nitrogen system?
Required N₂ flow rate (Nm³/h), target purity (%), required outlet pressure (MPa), installation altitude, ambient temperature range, and whether compressed air supply is already available. Our engineers will specify CMS volume, tower sizing and cycle parameters.
How does a PSA nitrogen generator work?
A PSA nitrogen generator separates nitrogen from compressed air using carbon molecular sieve. Twin towers alternate adsorption and regeneration to provide continuous nitrogen.
What nitrogen purity can a PSA generator produce?
The range presented here is 95% to 99.999% nitrogen. Higher purity generally reduces achievable flow for a given system size.
What information is needed to size a PSA nitrogen generator?
Provide required nitrogen flow, target purity, outlet pressure, operating schedule, altitude and ambient conditions, plus the available compressed-air supply.
Get a System Quote
Tell us your flow, purity and pressure. We will size and propose a complete system.
Request a Quote →💬 WhatsApp NowTypical Applications
- Electronics & SMT soldering
- Laser cutting (SS / Al)
- Food MAP packaging
- Chemical blanketing
- Metal heat treatment
- Pharma sterile filling
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