Compact PSA Nitrogen Generator for SMEs – Plug-and-Play On-Site N₂ | nGENX by Absstem
Absstem’s nGENX is a compact, skid-mounted PSA nitrogen generator designed for small and medium enterprises (SMEs) that need reliable on-site nitrogen without the installation complexity, civil work, and extended lead times of a full-scale system. nGENX arrives pre-assembled on a single skid – connect your air supply, power, and nitrogen outlet, and your on-site nitrogen generation begins.
Delivering 95%–99.90% nitrogen purity at 5–100 Nm³/hr, nGENX is ideal for food and beverage MAP packaging, small chemical and process plants, electronics SMT/reflow soldering, small laser cutting setups, automotive parts packaging, and oil & gas. IIoT-monitored*. 10-year Carbon Molecular Sieve performance warranty.
Need a larger nitrogen system for high-flow industrial applications above 100 Nm³/hr, higher purity up to 99.9995%, or multi-machine laser cutting? See nGEN – Absstem’s full-scale industrial nitrogen generator for medium and large manufacturing plants.
10-Year
CMS Performance Warranty
95–99.90% Purity
5–100 Nm³/hr
IIoT Remote Monitoring*
T&C Apply
Made in India
Turnkey Delivered
Plug-and-Play Skid
Fast Installation
What is a Compact PSA Nitrogen Generator?
A compact PSA nitrogen generator is a self-contained, skid-mounted system that produces nitrogen on-site from atmospheric air using Pressure Swing Adsorption technology. Unlike full-scale custom-engineered PSA nitrogen plants, a compact system arrives pre-assembled – compressed air in, nitrogen out – with minimal site preparation and a significantly faster installation timeline.
nGENX is Absstem’s compact PSA nitrogen generator, built for SMEs and space-constrained installations where a custom-engineered full-scale plant would be oversized, over-priced, or over-complicated. nGENX eliminates cylinder deliveries and liquid nitrogen supply at a lower entry cost and faster payback than a full-scale system – while delivering the same IIoT monitoring* and 10-year CMS warranty that comes standard on every Absstem system.
For larger applications above 100 Nm³/hr, purity requirements above 99.90%, or multi-machine laser cutting at 15–40 bar, see nGEN – Absstem’s full-scale industrial PSA nitrogen generator.
How nGENX Works – From Air to Nitrogen in 4 Steps
Carbon Molecular Sieve (CMS) – Technology Behind nGEN
The Carbon Molecular Sieve is the core separation medium in every PSA nitrogen generator. CMS is a specially engineered form of activated carbon with a precisely controlled pore size distribution that enables it to separate oxygen from nitrogen by kinetic selectivity.
How CMS works: Under pressure, oxygen molecules (smaller, faster diffusing) preferentially enter CMS micropores and are retained. Nitrogen molecules (larger, slower diffusing) pass through the void spaces as product gas. When the CMS bed becomes saturated with oxygen, pressure is reduced (the ‘swing’), oxygen desorbs and vents to atmosphere, and the CMS bed regenerates – ready for the next adsorption cycle.
CMS performance determines maximum achievable purity (95-99.90%), energy consumption (air-to-nitrogen ratio), and long-term operating cost. Absstem’s nGENX uses premium-grade CMS with optimised pore structure for India’s operating conditions – backed by a 10-year CMS performance warranty. Absstem backs nGENX with a 10-year sieve warranty – The first Indian industrial PSA Nitrogen manufacturer that provides this.
The efficiency of the Nitrogen Plant is calculated based on the Air-to-Nitrogen Ratio. The better the efficiency, the lower the air-to-Nitrogen ratio. Through continuous R&D, Absstem commits to the best air-to-nitrogen ratio in the industry.
| CMS Parameter | nGEN Specification |
|---|---|
| CMS Type | Carbon Molecular Sieve (premium grade) |
| Separation Mechanism | Pressure Swing Adsorption – oxygen selectively adsorbed over nitrogen |
| Output Purity Range | 95 - 99.90% N₂ – configurable at commissioning |
| CMS Performance Warranty | 10 years – first in India |
| Sensitivity | Sensitive to moisture and oil – Absstem’s pre-treatment protects CMS |
| Pressure Dew Point | Below 5°C at PSA inlet (maintained by integrated dryer) |
| CMS Lifespan | 10–12 years standard; 10 years under Absstem’s warranty conditions |
nGENX vs nGEN – Which Absstem Nitrogen System is Right for Your Plant?
| Feature | nGENX (Compact) | nGEN (Full-Scale) |
|---|---|---|
| Target buyer | SMEs, space-constrained facilities, pilot plants | Medium to large manufacturing plants |
| Format | Skid-mounted, pre-assembled, plug-and-play | Custom-engineered, fully turnkey |
| Typical flow range | 5–100 Nm³/hr | 5–3,000 Nm³/hr |
| Purity range | 95–99.90% | 95–99.9995% |
| Installation | Minimal civil work, faster timeline | Full civil + piping scope, longer lead |
| High-pressure option | Not standard (standard 4–8 barg) | Yes – booster for 15–40 bar (laser cutting, Pressure testing and higher pressure applications) |
| IIoT monitoring | Add-on Facility✓ | Add-on Facility✓ |
| CMS warranty | 10 years ✓ | 10 years ✓ |
| Best for | Food packaging, pharma, small electronics, lab N₂ | Laser cutting, oil & gas, chemical, large food |
| Investment range | Lower entry cost, faster payback | Higher investment, suits larger plants |
Simple rule: if your nitrogen requirement is below 100 Nm³/hr and your application purity is 99.90% or below, nGENX is designed for you. If your requirement exceeds 100 Nm³/hr, needs purity above 99.90%, includes high-pressure laser cutting (15–40 bar), or involves multiple production lines, see nGEN instead.
Typical Performance of Compact Nitrogen Plant
| Parameter | nGENX Capability |
|---|---|
| Nitrogen Purity | 95% to 99.90% – set at commissioning to your process requirement |
| Nitrogen Flow | 5 to 100 Nm³/hr |
| Delivery Pressure | 5.5 barg (higher pressures available on demand) |
| Operation | Continuous 24×7 |
| Commissioning | Ready within 2 days |
Delivered as a Ready-to-Use Nitrogen System
nGENX is supplied as a complete compact nitrogen system, including:
Skid-mounted PSA nitrogen generator module (CMS adsorber vessels, pre-assembled)
Air compressor and dryer
Nitrogen storage tank
Digital controller
On-site installation & commissioning
Operator training and AMC & CMC through Absstem Shield
Why Small & Medium Manufacturing Plants Choose nGENX Compact Nitrogen Generator
Lower Investment
Provides on-site nitrogen at a fraction of the cost of cylinders or liquid nitrogen
Consistent Nitrogen Quality
Delivers stable purity and pressure for packaging, processing and production
Ideal for Food & Beverage Packaging
Provides stable nitrogen purity for MAP and nitrogen flushing applications
Compact Footprint
Designed to fit in limited factory space, mezzanines or rooftops
Technology & Reliability of Compact Nitrogen Plant
10-year molecular sieve performance warranty
Low power consumption
Automatic start/stop and idle mode
Industrial-grade control panel
Absstem Shield AMC and CMC for long-term support
High-efficiency PSA separation
On-Site PSA Nitrogen vs Cylinders vs Liquid Nitrogen – SME Comparison
| Factor | N₂ Cylinders | Liquid Nitrogen (LIN) | nGENX On-Site PSA |
|---|---|---|---|
| Cost per Nm³ | ₹ 600 - 1000 | ₹ 15-25 | ₹ 1.8 - 2.7 |
| Delivery dependence | Yes – weekly/fortnightly | Yes – scheduled tanker | None – on demand from the air |
| Installation | No plant needed | Dewar/tank + PESO licence | Compact skid, 2 days |
| PESO licence | Required for storage | Required for LIN tank | NOT required |
| Boil-off/waste | 5–10% dead volume | 3%/day boil-off | Zero waste |
| IIoT monitoring | None | None | Add-on Facility |
| Best for | Very small, occasional use | N/A for SME scale | Regular use above 5 Nm³/hr |
What Does nGENX Cost? – And What Will You Save?
| Application | Monthly Cylinder Cost | Monthly Saving | Payback |
|---|---|---|---|
| Food packaging (10 Nm³/hr) | ₹60,000–1.2 lakh | ₹50,000–1 lakh | 10–18 months |
| Food packaging (30 Nm³/hr) | ₹1.8–3.5 lakh | ₹1.5–3 lakh | 8–14 months |
| Pharma inerting (20 Nm³/hr) | ₹1.2–2.5 lakh | ₹1–2.2 lakh | 8–16 months |
Note: Cylinder cost at ₹ 600 – 1000 /Nm³. nGENX running cost ₹ 1.8-2.7/Nm³ (electricity only). Investment and payback are indicative.
Calculate your plant’s exact savings in 2 minutes
Industries Using nGENX Compact Nitrogen Generator
Food & Beverage Packaging (MAP & Nitrogen Flushing)
Ensure longer shelf life, prevent oxidation, and maintain taste, texture, and quality with stable on-site nitrogen for MAP and nitrogen flushing applications.
Small Chemical and Process Plants
Provide reliable nitrogen for blanketing, purging, and inerting to improve safety, reduce oxidation risks, and maintain consistent process performance in compact facilities.
Oil & Gas
Support pipeline purging, tank blanketing, leak testing, and maintenance activities with continuous on-site nitrogen, eliminating cylinder logistics and downtime.
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Trusted By Thousands
FAQs – nGENX Compact Nitrogen Generator
What is a compact PSA nitrogen generator?
A compact PSA nitrogen generator is a skid-mounted, plug-and-play system that produces nitrogen on-site from atmospheric air using Carbon Molecular Sieves. It delivers 95%–99.90% purity nitrogen at 5–100 Nm³/hr with minimal civil work and fast installation – purpose-built for SMEs, food packaging, small chemical and process plants, electronics SMT/reflow soldering, small laser cutting setups, automotive parts packaging, and oil & gas. No cylinder deliveries, no PESO licence required.
What is the difference between nGENX and nGEN?
nGENX is Absstem’s compact, skid-mounted, plug-and-play nitrogen generator for SMEs – 5–100 Nm³/hr, 95–99.90% purity, minimal civil work, faster installation. nGEN is Absstem’s full-scale industrial nitrogen generator for medium to large plants – 5–3,000 Nm³/hr, 95–99.9995% purity, high-pressure booster option for laser cutting at 15–40 bar. If your flow requirement is above 100 Nm³/hr or you need purity above 99.90%, choose nGEN instead.
Is a PSA nitrogen generator the same as a PSA nitrogen plant?
Yes – the terms are used interchangeably across the industry. Both refer to a system that produces nitrogen on-site from air using Pressure Swing Adsorption (PSA) technology. nGENX is a compact PSA nitrogen generator delivered on a single pre-assembled skid – suitable for SMEs and space-constrained installations.
What purity and flow range does nGENX provide?
nGENX delivers nitrogen purity from 95% up to 99.90%, with flow rates from 5–100 Nm³/hr, suitable for packaging, electronics, pharma, and light manufacturing.
How long does nGENX installation take?
Most nGENX installations are commissioned within 2 days. The system arrives pre-assembled on a skid – connect your compressed air supply, power, and nitrogen outlet. No complex civil work, no extended project timeline. Absstem’s engineers oversee commissioning and purity verification on-site.
What makes Absstem’s compact nitrogen plants suitable for SMEs, MSMEs, and OEMs?
Our nitrogen plants are designed to be space-efficient, energy-saving, and cost-effective, helping smaller businesses meet high-purity nitrogen requirements without heavy investment.
What maintenance does nGENX need?
Routine nGENX maintenance: air filter replacement (monthly), compressor servicing (quarterly), desiccant dryer check (annually), IIoT-monitored CMS performance (continuous). The Carbon Molecular Sieve is performance-warranty for 10 years. AMC and CMC available through Absstem Shield.
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