A PSA oxygen generator produces O₂ on-site using zeolite molecular sieve (ZMS) that selectively adsorbs N₂ from air, allowing O₂ to pass through at 90%–95% purity. Two towers alternate between adsorption and regeneration for continuous output. Flow: 1–500 Nm³/h, outlet pressure: 0.1–0.4 MPa, power consumption: 0.3–0.5 kWh per Nm³ O₂ produced. Startup to rated purity: ≤30 minutes. NOT for direct respiratory medical use without certified medical-grade equipment.
| Parameter | Value |
| Principle | Pressure Swing Adsorption (PSA), twin-tower |
| Adsorbent | Zeolite Molecular Sieve (ZMS) |
| O₂ Flow Rate | 1–500 Nm³/h |
| O₂ Purity | 90%–95% |
| Outlet Pressure | 0.1–0.4 MPa (adjustable) |
| Feed Air | 0.6–0.8 MPa, dew point ≤-40°C, oil-free |
| Power Consumption | 0.3–0.5 kWh / Nm³ O₂ produced |
| Startup Time | ≤30 minutes to rated purity |
| Control | PLC automatic; optional HMI touch screen |
- Aquaculture — dissolved oxygen enrichment for fish and shrimp ponds (target DO: 5–10 mg/L)
- Wastewater biological treatment — O₂-enhanced aeration
- Metal processing — combustion enhancement, cutting and welding support
- Glass manufacturing — combustion efficiency improvement
- Chemical oxidation processes
- Medical auxiliary support (non-clinical grade)
What is the difference between PSA O₂ (90–95%) and medical-grade oxygen (>99.5%)?
Standard PSA oxygen generators using ZMS produce 90–95% O₂ — suitable for industrial and aquaculture applications. Medical-grade O₂ (≥99.5%) requires a different ZMS grade, longer cycle, validated monitoring and regulatory certification. Do not use standard PSA O₂ for direct respiratory medical applications without confirming applicable local regulations.
How does a PSA oxygen generator work?
A PSA oxygen generator uses zeolite molecular sieve to selectively adsorb nitrogen from compressed air, producing an oxygen-rich product gas.
What oxygen purity does a PSA oxygen generator provide?
The standard range presented here is 90% to 95% oxygen for industrial applications. Medical use requires applicable certified equipment and regulatory compliance.
What information is needed to size a PSA oxygen generator?
Provide oxygen flow, target purity, outlet pressure, application, operating hours and available compressed-air conditions.
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Request a Quote →💬 WhatsApp NowTypical Applications
- Fish & shrimp aquaculture
- Wastewater aeration
- Metal combustion enhancement
- Glass manufacturing
- Chemical oxidation
Related Products
- PSA Nitrogen Generator