IDOS – Industrial Oxygen Generator

IDOS – Industrial Oxygen Generator

Discover the absolute reliability for your industry with on-site oxygen generator

How is Industrial oxygen produced with PSA?

Absstem’s industrial oxygen generator uses only atmospheric air as raw material. Industrial oxygen generator consists of two adsorbers filled with zeolite molecular sieves. Pressurized air is passed through one of these adsorbers, zeolite having a structure to attract nitrogen, adsorbs nitrogen from air and oxygen is allowed to pass through to the storage tank and is produced as the final product. As adsorber approaches saturation, air is allowed to pass through the other adsorber while this adsorber is being regenerated to ensure a continuous supply of medical oxygen. This changeover takes place through a specially designed micro controller to ensure a hassle free operation. The quality of oxygen produced is continuously monitored by an oxygen analyzer.

Benefits of IDOS

  1. Best-in-class Air Factor (Air-to-Oxygen Ratio)
  2. Lowest Compressed Air requirement
  3. Best-in-class ROI
  4. Lowest Operational Cost
  5. Quickest service-response guaranteed
  6. Future Ready- Upgradable to high purity onsite
  7. Extended Warranty Cover up to 10 years (Pioneers in Industry)
  8. Rental or Lease options available
  9. Customised Solutions
  10. Inhouse Engineering exclusively Made in India.
  11. Sturdy & rugged construction as per industry standards
  12. Tested in toughest weather conditions
  13. Quiet and silent operation

Technical Data

  • Lowest specific power in industry
  • Inlet air as per ISO 8573.1:2010 – Class 1.4.1
  • Pressure up to 350 kg/cm2g is available on demand through oxygen compressors
  • Relative humidity – Max. 95%
  • Purity testing done by NABL APPROVED lab
  • Oxygen Flow: 2.5 to 250 – NM3/hr
  • Working temperature: – 10°C to 55°C
  • Power Supply: 230 VAC, 50/60 Hz
  • Inlet air pressure: Min 7.5 barg
  • O2 Delivery Pressure: Upto 5.5 barg
  • Oxygen Dew Point: -50°C
  • Sound Level of 65 dB from a distance of 1 meter
  • USB Storage is there to store parameters values
  • CE certified electronics with 24 VDC operating Voltage
  • All tanks are fabricated per ASME standards
  • All tanks have corrosion resistant internal environment
  • ISO 9001:2015: Manufacturing is in accordance with certified QMS (Quality Management System)

Widest range of applications

  • 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

New-generation IDOS [O2 Generators]

Highest Quality Zeolite Molecular Sieve (ZMS)

  • Very High Density due to packed-bed Technology
  • Top/Bottom Equalization
  • Protected by dedicated pressure sensor

Self-protective monitoring of the feed air quality

  • Temperature
  • Pressure
  • Pressure dewpoint
  • Automatic feed air blow-off in case of contamination


  • The modern user interface, shows plant operation parameters
  • Continuous flow with real-time oxygen purity is displayed
  • Buzzers are activated upon maintenance requirement

Data control and logging

For audits and certifications, the oxygen purity data, running hours of air compressor and filters etc. can be traced, displayed or stored in a chip and can be exported to an external device.

Multistage filtration system

  • We recommend special multistage filtration system to protect the ZMS from oil and dust particles.
  • Additional filters drain moisture using an ADV (Automatic Drain Valve)

Designed for tough weather conditions

  • Industrial Oxygen machines show longevity in a dust/moisture-free environment
  • Ergonomic design, robust structure and advanced HMI makes it an efficient oxygen producer

Automatic start-up

  • Minimum pressure valve with bypass nozzle for a fast start-up
  • Eliminates the risk of overflow and ZMS damage

Premium energy efficiency

Air factor (air-to-Oxygen ratio) from 1.8 (95% O2)

The most complete scope of supply

  • Oxygen flow meter as standard
  • Zirconia oxygen sensor with a long lifetime
  • Outlet pressure reducing valve
  • Oxygen pressure dewpoint sensor available as an option

Control and monitoring

  • Remote start-stop
  • RS232, RS422, USB and Ethernet ports available

Backflow pressurization

  • In the pressurization phase Oxygen is used instead of air
  • No Nitrogen contamination of the ZMS before the adsorption phase starts

The ultimate energy saver

  • Stand-by mode in case no Oxygen is consumed
  • Cycle time modulation algorithm = extended cycle time at low oxygen demand = reduced air consumption at low oxygen demand

Self-regulation and stable purity

  • Automatically regulates the requested oxygen pressure and purity
  • Extremely easy to change purity

Oxygen generation – redefined

  • Air Compressor – Pulls air in the system
  • Refrigeration Dryer – Removes moisture from compressed air
  • Air Vessel – Minimizes pulsation
  • Multistage Filtration – Removes dust, oil etc. for non-contamination
  • Inlet Air Monitoring System – To eradicate molecular sieve contamination
  • PSA System – Nitrogen is removed and Oxygen is processed
  • Oxygen Analyzer – Monitors quality of Oxygen
  • O2 Storage vessel – Stores and supplies oxygen for use

HD Touch screen display

  • HMI Drill Down Reporter
  • Each and every parameter is stored and monitored
  • Fully Automatic
  • Remote Monitoring Equipped
  • Intelligent System GUI that understands the demand

Additional Upgrades

  • Digital flow meter with totaliser
  • High pressure oxygen tank
  • Cylinder manifold and alarm management system

List of Models

ModelLPMNM3/hrCylinder Consumption/DayLxBxH (ft)
iDOS 2.5422.5≤93.0 x 2.6 x 7.2
iDOS 5835≤18 3.0 x 2.6 x 7.2
iDOS 61006≤213.0 x 2.6 x 7.2
iDOS 7.51257.5≤273.0 x 3.3 x 7.2
iDOS 1016710≤363.0 x 3.3 x 7.2
iDOS 12.521712.5≤453.0 x 3.3 x 7.2
iDOS 1525015≤554.3 x 3.6 x 7.2
iDOS 1830018≤604.3 x 3.6 x 7.2
iDOS 2033320≤635.2 x 3.9 x 7.2
iDOS 2541725 ≤ 885.2 x 3.9 x 7.2
iDOS 3050030 ≤ 1065.9 x 4.3 x 7.2
iDOS 4066740 ≤ 1416.5 x 5.9 x 7.2
iDOS 4575045 ≤ 1416.5 x 5.9 x 7.2
iDOS 5083350 ≤ 1767.5 x 6.9 x 7.2
iDOS 60100060 ≤ 2217.5 x 6.9 x 7.2
iDOS 75125075 ≤ 265Custom
iDOS 1001667100 ≤ 353Custom
iDOS 1202000120 ≤ 423Custom
iDOS 1502500150 ≤ 530Custom
iDOS 2003333200 ≤ 706Custom