Oxygen Generators

Research and Production Company Grasys manufactures adsorption oxygen generators with a purity of up to 99% (with an additional purification stage). An oxygen generator allows gaseous oxygen to be produced from atmospheric air, ensuring uninterrupted supply and independence from regular oxygen purchases.


up to 6,000 m³/h

Oxygen purity

up to 95–99%


0.5 MPa; 15 MPa

Warm-up period

up to 20 minutes

If your company needs an oxygen generator or plant, R&P Co. Grasys is ready to design and manufacture the required equipment quickly.

Your choice should be based on the purpose for which you need oxygen and therefore the purity of oxygen you need for your work. The most common are adsorption oxygen generators.

Adsorption oxygen generation plants are used in a variety of industries. In general, the use of oxygen generators is not limited to healthcare applications. These devices are used in metallurgy, chemical and petrochemical industries, oil and gas industry, etc. We offer our customers a tailor-made design and manufacture of an oxygen generator that fully meets the specific needs of their professional activities.

Product Images

R&P Co. Grasys Offers a Tailor-Made Ap-Proach and High Quality Oxygen Generation Units

When designing an oxygen generator, our specialists always consider all customer requirements and wishes. Our business is the manufacture of high-tech equipment. Each oxygen generator is manufactured using high quality materials and nanotechnology to ensure impeccable quality and durability. If you want to ensure that your installations run efficiently and smoothly, contact R&P Co. Grasys.

The unit consists of:

  • Compressor;
  • Dryer;
  • Receiver;
  • Filter system;
  • Adsorption generator;
  • Control system.

You can get turnkey, ready-to-use equipment that works well. Once you have signed a contract with R&P Co. Grasys, you don't have to worry about a thing: our experts will take care of everything. We provide warranty and post-warranty service for your equipment. When you choose R&P Co. Grasys, you can be sure that you will receive a full range of services that meet today's high standards.

Product Design Options

Fixed Design

Free equipment placement.

Fixed Design

On-skid or on-platform design allowing for the system quick installation and start-up.

Packaged Modular (Transportable)

Modular container or sea container design. Operation in various climatic zones.
Тех. характеристики

Capacity, m³/h up to 6,000

Oxygen purity, %up to 95–99

Pressure, MPa 0.5; 15

Dew point temperature, °C−70

Operating temperature, °C +5 to +40

Unit operating life, thousands hoursup to 70–120

General Description

Grasys manufactures oxygen generation equipment based on well-proven PSA (Pressure Swing Adsorption) and VPSA (Vacuum Pressure Swing Adsorption) technologies. The operating principle is based on the properties of adsorbing materials to selectively absorb molecules of nitrogen and impurity gases contained in atmospheric air, while allowing oxygen molecules to pass through. All the adsorbents used in the equipment are certified and approved in Russia, which guarantees the reliability of the systems and the high quality of the oxygen produced.

The use of air-separating adsorption oxygen generation plants can reduce the cost of the oxygen produced many times over. The undisputed advantage of these systems, apart from the economic benefits, is their ease of use and maintenance, as well as very high reliability.

Oxygen generation plants are used for a wide range of applications, the most popular being autogenous oxygen (except for automatic metal cutting). Oxygen generators are also used in the silicate, pulp-and-paper, food and pharmaceutical industries, fish farming, waste water treatment and ozone plant feeding, solid waste incineration and health care.

Grasys offers a wide range of air separation units for oxygen generation, from small mobile units for metal cutting and welding to systems for independent filling of standard oxygen cylinders at 150 atm in the production facility.


  • Raising the temperature in melting and glass furnaces
  • Preparation of different chemical compounds
  • Reducing sulphur deposits in refineries
  • Gas welding, cutting, soldering of metals
  • Reducing fry incubation time in fish farming
Система управления и контроля

Advanced, Smart GRASYS Intelligent Control-8 Control and Monitoring System

The advanced, smart GRASYS Intelligent Control-8 monitoring and control system ensures the simplest and most convenient control of the GRASYS oxygen generator.

The GRASYS Intelligent Control-8 monitoring and control system provides:

  • Full control of all unit systems;
  • Manual, automatic and remote control options;
  • The ability to integrate the unit's control system into the factory-wide control system;
  • Emergency interlocks to protect against falling outside the permitted limits of key process parameters;
  • Switching the generator to standby mode under zero oxygen consumption;
  • A wide range of additional options, including the ability to control unit parameters via the Internet.


  • Fully automated, easy to maintain
  • High fault-tolerance, reliability
  • Minimal operator supervision is required during operation
  • Quick system start-up and shutdown
  • High purity of the oxygen generated
  • Small-sized, lightweight
  • Low operating costs

Operating Procedure When Dealing With R&P Co. Grasys


Submit a request on the site or reach our specialist by phone


Grasys expert speaks to you and finds out your needs


You fill out a questionnaire with the desired equipment parameters


Our expert prepares a quotation with the most efficient solutions to your application. Contract to be concluded


We perform engineering, designing, manufacture equipment with its further testing and placing into service, etc


We ship equipment to the operational location and provide a package of documents


We are engaged in start-up operations and equipment commissioning


We provide aftersales service to ensure equipment efficient performance and reliability excellence (optional)

Advantages of Cooperating with R&P Co. Grasys

High-tech Russian manufacture

Implementation of import substitution programs

Hands-on experience in implementing over 1600 projects within 20 years

Manufacturing equipment of any size and level of sophistication

Turnkey projects (EPC-contracts)

Prompt technical support

Information contained herein does not constitute а public offer

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