PSA Nitrogen Generator 99.99–99.999% Purity
A CMS twin-tower PSA nitrogen generator for electronics and metal processing: 99.99–99.999% N₂ with residual oxygen target confirmed against the selected model datasheet at 1–2000 Nm³/h overall series range; confirm capacity for the selected purity/model.
This PSA nitrogen generator produces nitrogen at 99.99–99.999% purity using carbon molecular sieve (CMS) in a twin-tower pressure swing adsorption system, with residual oxygen target confirmed against the selected model datasheet.
Flow ranges from 1 to 2000 Nm³/h with outlet pressure up to 0.65 MPa per the supplier brochure, and the towers alternate between adsorption and regeneration so the supply is continuous.
Ultra-low oxygen makes it suitable for sensitive electronics and metal processing, where even a small oxygen content causes oxidation, dross or poor wetting.
It is used for SMT wave soldering, laser cutting assist gas, electronics assembly and metal heat treatment.
| Parameter | Specification |
| Purity | 99.99–99.999% N₂ |
| Flow | 1–2000 Nm³/h overall series range; confirm capacity for the selected purity/model |
| Outlet pressure | up to 0.65 MPa per supplier brochure; confirm selected model |
| Dew point | -40°C or lower |
| Residual O₂ | Confirm residual oxygen target against the selected model datasheet |
| Adsorbent | Carbon molecular sieve (CMS) |
| Technology | CMS twin-tower PSA (carbon molecular sieve), continuous on-site supply |
| Feed air | model-specific pressure, dew point ≤-40°C, oil-free |
| Startup time | approximately 15–30 minutes (supplier brochure; model dependent) |
| Control | PLC automatic; optional HMI touch screen |
| Typical duty | SMT wave soldering, laser cutting assist gas, electronics assembly and metal heat treatment |
The PSA nitrogen range is published as a purity and capacity configuration rather than a numbered model table: fix the purity tier first, then the flow, outlet pressure and dew point for the duty.
- Adsorption towers: two adsorber vessels alternate between adsorption and regeneration, so the nitrogen supply is continuous.
- Molecular sieve: carbon molecular sieve (CMS) retains oxygen at pressure while nitrogen passes through as product gas; when a bed approaches saturation it is depressurised and the captured oxygen is vented.
- Air dryer: the package includes an air dryer that brings the compressed-air moisture load down so the feed-air dew point requirement is met before the air reaches the sieve bed.
- Filtration: filtration stages remove oil aerosol and dust carried over from the compressor and receiver, protecting the sieve bed.
- Air receiver: a buffer tank (air receiver) between the compressor and the PSA towers steadies the feed-air supply.
- Control cabinet: PLC automatic control with an optional HMI touch screen; the control cabinet manages the valve cycle and the operating parameters.
- Purity monitoring: an oxygen analyser monitors residual oxygen in the product nitrogen, and its calibration is checked on schedule.
- Feed air: clean compressed air at model-specific pressure with a dew point of -40°C or lower, oil-free.
- SMT wave soldering: supplies low-oxygen nitrogen for SMT wave soldering to reduce oxidation.
- Laser cutting assist gas: provides nitrogen as assist gas for laser cutting of stainless steel and aluminium.
- Electronics assembly: protects electronics assembly and reflow processes from oxidation.
- Metal heat treatment: inerts heat-treatment and annealing furnaces to reduce oxidation and scale.
- Brazing and sintering: covers furnace atmospheres for brazing and sintering duties.
- Semiconductor preparation: supports process steps that need a very low residual oxygen level.
- Confirm the residual oxygen requirement first, because the generator publishes below 10 ppm and that figure drives the sieve charge and the flow.
- Check the flow and outlet pressure against the 1 to 2000 Nm³/h and up to 0.65 MPa (confirm selected model) ranges.
- Specify the feed-air pressure and treatment requirements precisely — oil-free, with a dew point of -40°C or lower — because it directly limits the achievable purity.
- Confirm whether the duty is continuous or intermittent, since purity recovers to the rated level within 30 minutes of start-up.
- State the power supply and installation conditions, and allow space for the dryer, filtration and air receiver.
- Plan a liquid-nitrogen backup if an interruption to the assist gas would stop the line.
What purity and residual oxygen does this generator deliver?
It delivers nitrogen at 99.99–99.999% purity with residual oxygen target confirmed against the selected model datasheet, using CMS twin-tower PSA.
Where is this nitrogen used?
For SMT wave soldering, laser cutting assist gas, electronics assembly, metal heat treatment, brazing and sintering.
What flow and pressure are available?
Flow ranges from 1 to 2000 Nm³/h with outlet pressure adjustable up to 0.65 MPa per the supplier brochure.
Why is residual oxygen stated in ppm?
At this purity the oxygen content is measured in parts per million because that is the level that matters to soldering, cutting and furnace atmospheres; the published figure is below 10 ppm.
How long does it take to reach rated purity?
Start-up to rated purity is 30 minutes or less, so the analyser should be checked before production starts.
Related Products
- PSA Nitrogen Generator 99.9–99.99% Purity
- PSA Nitrogen Generator 99.999% Ultra-High Purity
- PSA Nitrogen Generator
How to Choose an Ultra-Low-Oxygen PSA Nitrogen Generator
Quick answer: Ultra-low-oxygen PSA nitrogen is selected from the residual-oxygen limit, purity, flow and outlet pressure. This tier holds residual O₂ target confirmed against the selected model datasheet at 99.99–99.999% purity for laser cutting, soldering and heat treatment.
Do I need residual oxygen target confirmed against the selected model datasheet?
The 99.99–99.999% tier is the published range for SMT wave soldering, laser cutting assist gas, electronics assembly and metal heat treatment, where oxidation at the cut or joint has to be suppressed. Confirm the process limit with the equipment supplier before choosing a tier.
How much flow can the skid produce?
The published range is 1–2000 Nm³/h overall series range; confirm capacity for the selected purity/model at this purity. Because higher purity reduces the achievable flow, quote the two together; the PSA nitrogen generator guide covers the sizing method.
What feed air is required to reach this purity?
Clean, oil-free compressed air at model-specific pressure with a dew point of -40°C or lower; the feed air is conditioned by an air dryer and filtration before it reaches the sieve bed.
Selection Data to Send Our Engineers
- Residual oxygen requirement (ppm)
- Required nitrogen purity
- Required flow (Nm³/h)
- Outlet pressure (MPa)
- Feed-air quality and supply
- Operating hours and site conditions
Industry Applications
Explore how this equipment can be applied in related industrial sectors and review application-specific selection guidance.
Technical selection & RFQ
Request a Quote for PSA Nitrogen Generator 99.99–99.999% Purity
Looking for a PSA nitrogen generator supplier for an industrial project? Share the operating conditions below so our team can review the duty, recommend a suitable configuration and prepare a quotation. Final model selection and performance should be confirmed against your actual process conditions and the applicable product data.
Information to include in your inquiry
- Required nitrogen purity: Target N₂ purity (%) and any outlet quality requirement
- Nitrogen flow: Required flow rate and whether it is peak or continuous demand
- Operating pressure: Required outlet pressure and downstream pressure losses
- Application & operating profile: Packaging, electronics, laser cutting, chemical process, or other use; operating hours
- Site utilities: Available power supply, compressed-air conditions, ambient temperature and installation space
Not all details are available yet? Send the information you have, your datasheet or a process description. We can identify the missing selection data before confirming a model.