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The Rocky RPN29‑150‑N0.6 is a self‑contained nitrogen generation assembly that operates on PSA (Pressure Swing Adsorption) principles. Its adsorbent bed is filled with Carbon Molecular Sieves (CMS), which exploit the dissimilar penetration rates of oxygen and nitrogen through the CMS micro‑pores. Once the system is pressurized, oxygen and other undesired gases are captured in preference, leaving a pure nitrogen stream that flows out continuously. The twin‑vessel layout functions in an alternating sequence: one vessel is under adsorption pressure to deliver nitrogen, while the other undergoes simultaneous decompression for regeneration. This cyclic process guarantees an around‑the‑clock, uninterrupted nitrogen feed. Rated at 150 Nm³/h with a purity level of 99%, this unit stands as an economical, dependable on‑site alternative to conventional cylinder or liquid‑nitrogen delivery methods.
Primary Benefits
1. Substantial Savings on Gas Expenditure
In‑house PSA nitrogen production can lower gas costs by up to 90%. When compared with traditional bottled or cryogenic liquid supplies, the PSA route provides a more stable and markedly lower expense structure, eliminating outlays for cylinder leasing, shipping, warehousing, and manual handling. Though a single initial investment is required, the cumulative long‑term financial advantage is considerable.
2. Consistent and Dependable Gas Supply
The alternating twin‑vessel design secures a steady purity, flow, and pressure profile. The system is engineered for 24/7 continuous service, practically removing any risk of supply disruption. Premium‑grade valves, rated for up to one million switching cycles, are incorporated to guarantee extended operational durability.
3. Fully Automated Intelligent Operation
An advanced PLC‑based control package continuously monitors purity, flow rate, pressure, and overall machine health. The generator runs entirely autonomously, requiring no manual intervention. Any nitrogen that falls below the specified purity threshold is automatically diverted to vent, thus safeguarding downstream production quality.
4. Rapid Start‑Up
The desired purity level is achieved within 15‑30 minutes from a cold start. Moreover, the purity can be flexibly tuned across a wide range to accommodate diverse process requirements.
5. Low Upkeep and Extended Service Lifetime
The unit incorporates a distinctive CMS loading and compaction mechanism, which ensures a high packing density and optimized adsorption performance. A composite bed layout, paired with CMS compression technology, prolongs the useful life of the molecular sieve material. Thanks to its straightforward, rugged construction, the generator experiences few breakdowns and demands only minimal maintenance.
Typical Application Fields
With its 150 Nm³/h capacity and 99% purity, the RPN29‑150‑N0.6 serves a broad spectrum of industrial uses:
Laser Cutting – acts as an auxiliary gas to shield the laser nozzle, inhibit oxidation, and enhance cut surface quality (purity ≥99%).
Metal Fabrication and Thermal Treatment – provides a protective atmosphere for annealing, sintering, anti‑oxidation, and explosion prevention (purity 99‑99.99%).
Food Packaging and Preservation – employed in modified‑atmosphere packaging, cold storage, and oil/dairy processing (purity ≥98%).
Electronics and Semiconductors – supports component safeguarding, reflow soldering, and wave‑soldering operations (purity ≥99.9%).
Chemical and Pharmaceutical Sectors – used for inert blanketing of reactors, pipe purging, and nitrogen padding (purity 99‑99.99%).
Oil and Gas Industry – suited to pipeline flushing, tank blanketing, and vapour recovery systems (purity 95‑99%).
Reasons to Select Rocky
Proven PSA Expertise – built upon mature Pressure Swing Adsorption know‑how, guaranteeing stable and trustworthy performance.
Economically Viable – moderate equipment outlay coupled with low running costs, yielding a short payback period.
Flexible Customisation – bespoke configurations can be engineered to match specific purity and flow specifications.
Full‑Spectrum Support – comprehensive after‑sales service covering installation direction, start‑up assistance, and technical troubleshooting.
Prompt Delivery – streamlined supply chains and production capabilities ensure shipments meet agreed schedules.
Interested in a Cylinder Filling Station?
Please get in touch with the following details:
Required N₂ capacity: _____ Nm³/hr
Target N₂ purity: _____ %
Desired N₂ discharge pressure: _____ Bar (150 or 200 Bar)
N₂ dew point: _____ °C
Electrical supply: _____ V / PH / Hz
Site altitude: _____ metres above sea level
Intended N₂ application: _____
