About nGEN


Being the largest component of breathable air (78%), nitrogen gas serves a lot of purposes. From being used as a refrigerant to displacing oxygen in food processing to the manufacturing of clothing fabrics or tempering copper wires; the list of industrial uses of this gas is endless.

Gone are the days when high-pressure pre-filled cylinders were the only option to meet the nitrogen requirements of a manufacturing unit or any other industry with regular nitrogen consumption. With years of research and hard work, Absstem has come up with an efficient PSA-based industrial nitrogen generator. It allows you to generate nitrogen onsite at whatever purity level your application requires.


  • In-house Placement And Production

  • Starts Production Minutes After Installation

  • No Hydrogen Required

  • Compact And Easy To Maintain

  • Designed for 24x7 Operation

  • Regular PMS (Preventive Maintenance Schedule)


  • No Delivery Bottlenecks
  • Constant Supply
  • No Transportation Required
  • Safety
  • Cost-effective
  • Onsite Production
  • Intact Purity
  • Environment-friendly
  • 10 Years Warranty

Gas Separation



The integral components of NGEN include: -

  • Alarm management system
  • Plug and Play
  • Fully automatic
  • Process data display
  • Service planning element
  • Display of consumable’s running hours
  • Data logging via USB drive
  • Graphical representation

Additional Upgrades

  • Digital flow meter with totaliser
  • High pressure nitrogen tank
  • Cylinder manifold and alarm management system
  • Remote monitoring

Technical data


  • Lowest specific power in the industry
  • Inlet air as per ISO 8573.1:2010 – Class 1.4.1
  • Pressure up to 350kg/cm²g is available on demand through N2 compressors
  • Maximum relative humidity is 95%
  • Purity testing is done by NABL APPROVED lab
  • Sound level of 65 dB from a distance of 1 meter
  • Working temperature is -5° C to 50° C
  • Nitrogen Flow up to 3000 NM³/hr
  • Purity up to 99.9999%
  • USB Storage to store parameters values
  • CE-certified electronics with 24 VDC Operating Voltage
  • All tanks are fabricated per ASME standards
  • All tanks have a corrosion-resistant internal environment
  • ISO 9001:2015: Manufacturing is in accordance with certified QMS (Quality Management System)



Packaged Solutions


PSA Nitrogen Generator

  • This is a plug and play system
  • Requires dry compressed air and one storage tank only

Skid Package System

  • This system comes with air compressor, multistage filtration system, nGen and nitrogen compatible storage vessel.
  • This is a complete package with all instruments

Mobile PSA Nitrogen Generator

  • Skid mounted mobile systems with complete piping and interlocking support are available
  • These systems can be transported to any location can be designed according to any climate conditions and environmental factors.
  • Cylinder filling option with noise control for multiple location delivery.

Auxiliary Equipment


High-Pressure Nitrogen Cylinder filling System

  • PSA Nitrogen generator with Nitrogen booster compressor for filling of cylinders
  • Cylinders filled up to 350 Barg pressure
  • Cylinders filling range/day is 8 to 1000 Nos.
  • High-Pressure Nitrogen up to 70 Barg

Return on Investment


With great emphasis on cost-effective, low-impact business practices, most businesses opt for bulk delivery to meet all their industrial gas requirements. But given the fluctuation in market prices of gases like oxygen and nitrogen, this is no more a viable option. A large number of industries are using onsite gas generation plants for reliability and improved ROI.



  • Fish Farming
  • Wastewater Treatment
  • Paper and Pulp Industry
  • Glass Manufacturing
  • Welding and Metal Fabrication
  • Pharmaceutical and Biotech applications
  • Plasma Cutting
  • Laser cutting
  • Ceramic Industry
  • Waste Incineration
  • Refineries