PSA Nitrogen Generator Manufacturer — India
Gastek Engineering manufactures on-site PSA nitrogen gas generators in India, delivering 95% to 99.999% nitrogen purity at flows up to 5000 Nm³/hr. Built on pressure swing adsorption technology with imported CarboTech carbon molecular sieves, each plant replaces cylinder and liquid nitrogen supply with dependable nitrogen generated at the use point.
Purity
95–99.999%
Capacity
1–5000 Nm³/hr
Start-up
~15 min
Best fit: continuous nitrogen duties where purity, flow stability, and the lowest cost per Nm³ decide — the plant most industrial buyers mean when they say "nitrogen generator".
Reduce oxygen exposure for packed food, edible oils, beverages, and stored materials.
Create oxygen-controlled atmospheres for electronics, metals, and heat treatment processes.
Displace air and oxygen from tanks, pipelines, reactors, and LNG systems safely.
Hold repeatable purity, pressure, and flow for continuous 24/7 industrial operation.
Working principle
Air is 78% nitrogen. A PSA nitrogen generator recovers it by exploiting how carbon molecular sieve adsorbs oxygen faster than nitrogen under pressure. Two vessels swing between adsorption and regeneration in an automatic cycle, turning compressed air into a continuous stream of high-purity nitrogen — with no chemicals, no heat, and nothing consumed but air and power.
Compressed air is filtered and dried to remove oil, moisture, and particulates before it reaches the adsorber vessels. Feed air quality is the main factor in CMS bed life, so the air treatment train is engineered as part of the plant.
Pressurized air flows through a vessel packed with carbon molecular sieve. Oxygen, CO₂, and residual moisture are trapped in the narrow micropores while nitrogen passes through to the buffer tank at the set purity.
Twin adsorber vessels alternate automatically: while one produces nitrogen, the other depressurizes and vents the adsorbed oxygen to atmosphere. No heat, no chemicals, no consumables — just continuous nitrogen, cycle after cycle.
Adsorbent technology
Gastek PSA plants are built on advanced CMS through a technical collaboration with CarboTech, Germany — pioneers in narrow-pored CMS production. The precision-engineered pore structure separates oxygen from nitrogen efficiently, holding purity up to 99.9999% over a long service life.
Technical scope
Each plant is engineered around the actual duty rather than a catalogue model. Purity, flow, pressure, duty cycle, and feed air are confirmed before the adsorbers, CMS volume, and controls are sized.
Gastek project basis
Manufactured in India — gas generation systems since 1993
One PSA platform, four purity paths — the right route depends on the residual oxygen the process can tolerate.
The workhorse range for general industrial blanketing, purging, food packaging, and process duties.
Achieved with superior-grade CarboTech carbon molecular sieves selected for the duty.
CMS technologyA downstream Deoxo purifier removes residual oxygen to ppm levels for the most demanding processes.
Deoxo purificationN₂–H₂ mixtures for heat treatment, annealing, and protective atmosphere applications.
HNX technologyTechnology selection
Gastek manufactures both technologies, so the recommendation follows the duty — not a product line. The deciding questions are purity, flow, duty cycle, and lifecycle cost.
High-purity nitrogen — up to 99.999% — is required
Large or continuous flow rates must be supplied economically
Energy cost per Nm³ at higher purity is a priority
Consistent purity across long production runs is essential
Nitrogen is a core utility that runs around the clock
Nitrogen purity of 95–99.5% suits the application
Installation space is limited or the site is remote
Immediate start-up and stop-start operation are required
Minimal maintenance and silent running are priorities
Not sure which route fits? The interactive guide walks through supply method, purity, operating hours, and installation environment.
Nitrogen Selection GuideApplications
A food packaging line, SMT facility, petrochemical plant, and heat treatment furnace may all need nitrogen — but the right generator depends on purity, flow, pressure, duty cycle, and operating conditions.
Shelf life and oxidation control
On-site nitrogen for modified atmosphere packaging, edible oil processing, wine production, beverage dispensing, controlled atmosphere storage, and bulk storage blanketing.
Sizing basis
Residual oxygen, line or room demand, operating hours
Regulated and oxygen-sensitive production
On-site nitrogen for API reactors, pharmaceutical packaging, vial and bottle purging, tank blanketing, lyophilization support, and moisture-sensitive storage.
Sizing basis
Purity or O₂ target, use-point pressure, documentation
Clean, oxygen-controlled production
High-purity nitrogen for SMT soldering, PCB protection, battery manufacturing support, wafer handling, and sensitive electronics production.
Sizing basis
O₂ ppm, line count, flow stability
Inerting, purging, and process safety
Nitrogen generation for tank blanketing, reactor inerting, pipeline purging, catalyst protection, polymer processing, and hydrocarbon safety systems.
Sizing basis
Purge volume, hazard zone, batch or continuous duty
Protective atmospheres and heat treatment
Reliable nitrogen supply for annealing, heat treatment, laser cutting, galvanizing, cement plant inerting, LNG tank purging, and protective atmospheres.
Sizing basis
Furnace volume, pressure, atmosphere composition
More application pages
These pages help buyers move from a broad nitrogen requirement to a specific process discussion.
Nitrogen supply for ammonia synthesis and renewable energy projects.
PSA nitrogen for CA cold rooms, fruit storage, and low-oxygen post-harvest facilities.
Purging and inerting of LNG storage tanks and transfer systems.
Process nitrogen for textile, garment, and packaging applications.
Export markets
Gastek supplies PSA nitrogen generator systems from India to international industrial buyers — with application-led sizing before order, export packing and documentation, and commissioning coordination at the destination.
PSA nitrogen plants for oil & gas, petrochemical, pharmaceutical, and food processing buyers across the Gulf — shipped through Jebel Ali, Dammam, and Hamad Port with commissioning support at the destination.
Explore Middle East ExportSupporting electronics, textiles, food & beverage, and industrial manufacturing across ASEAN — with fast delivery from India through Saigon Port, Laem Chabang, and Port Klang.
Explore Southeast Asia ExportNitrogen generation for manufacturing, food processing, pharmaceutical, and agricultural industries across East, North, and Southern Africa — via Mombasa, Alexandria, and Casablanca.
Explore Africa ExportAlso serving Turkey, Bangladesh, Sri Lanka — and buyers in Europe, South America, and other global markets can enquire for their country.
International project workflow
A clear process helps export buyers understand what happens after the first enquiry.
Flow, purity, pressure, duty cycle, application, and location are checked before sizing.
PSA vessels, CMS selection, analyzer, controls, and skid layout are matched to the project.
Plant build, packing, documentation, and dispatch planning are coordinated for the destination.
Remote or on-site guidance is planned around site readiness and plant configuration.
Gastek PSA nitrogen generators deliver 95% to 99.999% nitrogen purity, selected around the application. Standard duties like blanketing and food packaging typically run at 97.5–99.9%, while electronics and pharmaceutical processes use up to 99.999%. Where ppm-level residual oxygen is required — up to 99.9999% purity — a Deoxo purifier is added downstream of the PSA plant.
PSA stands for pressure swing adsorption. Filtered, dried compressed air flows through a vessel packed with carbon molecular sieve (CMS), which traps oxygen, CO₂, and moisture in its micropores while nitrogen passes through as product gas. Twin adsorber vessels alternate automatically: while one produces nitrogen at pressure, the other regenerates by venting the adsorbed oxygen to atmosphere. The cycle repeats continuously, so nitrogen supply never stops.
Standard PSA nitrogen plants cover 1 to 5000 Nm³/hr, with higher capacities engineered on request. Each plant is sized from the actual duty — flow, purity, use-point pressure, duty cycle, and operating hours — rather than picked from a fixed catalogue, so the compressor, CMS volume, and buffer capacity match the real demand profile.
In most continuous-use cases, yes — generating nitrogen on-site typically costs a fraction of delivered cylinder or liquid nitrogen once operating hours are meaningful. The main operating cost is compressed air, so the economics depend on gas price, power cost, and utilization. On-site generation also removes ordering cycles, rental charges, delivery dependence, and handling of high-pressure cylinders. Gastek reviews the payback as part of sizing.
Choose PSA when the process needs higher purity (up to 99.999%), larger continuous flows, or the lowest energy cost per Nm³ at high purity. Choose membrane when 95–99.5% purity suits the duty and instant start-up, compact footprint, and minimal maintenance matter most. Gastek manufactures both technologies, so the recommendation follows the duty rather than a product line.
The plant needs a supply of compressed air and electrical power for the controls and analyzer. The air treatment train — filtration and drying — is engineered as part of the package because feed air quality determines CMS bed life. An existing plant air compressor can often be used if its capacity and air quality are suitable; otherwise a dedicated compressor is specified with the plant.
A Gastek PSA nitrogen generator reaches on-spec purity in approximately 15 minutes from cold start. Operation is fully automatic: PLC control with a touch-screen HMI manages the adsorption cycle, and a continuous online oxygen analyzer monitors product purity, so the plant runs unattended as a utility.
Yes. Gastek exports PSA nitrogen generators from India to the Middle East, Southeast Asia, and Africa, with dedicated support for buyers in the UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Malaysia, Thailand, Indonesia, Vietnam, Egypt, Kenya, and more, plus Turkey, Bangladesh, and Sri Lanka. Export scope covers sizing, packing, documentation, shipping to major ports, and commissioning support.
Useful inputs are required nitrogen flow, target purity or residual O₂ specification, use-point pressure, application, operating hours, and installation location — plus destination country for export projects. With these, Gastek proposes the right PSA configuration instead of a generic plant quote, or recommends a membrane route if that fits the duty better.
Next step
Tell us the flow, purity, pressure, operating hours, application, and installation location. Gastek will recommend the right PSA nitrogen generator configuration — or a membrane route if that serves the duty better.
Trusted by 100+ manufacturers across India, with export projects worldwide.
Required nitrogen flow rate and peak demand
Target purity or residual oxygen (O₂ ppm)
Use-point pressure and operating hours
Application and installation country
Looking at other on-site gas systems? Explore the full Gastek product range.
