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Oxygen Generator - MULTISEP

High Flow On-Site Oxygen Generation for Industrial Demand

The Oxywise Oxygen Generator – MULTISEP series is designed for facilities where oxygen is a core utility and consumption is high, continuous, and critical to throughput. MULTISEP produces oxygen directly on site from compressed air, helping plants reduce reliance on deliveries, simplify supply planning, and protect operations from external logistics disruptions. The result is a dependable oxygen source that supports modern production environments where uptime, stability, and predictable operating routines matter.

What MULTISEP Is Built to Solve at Scale

As oxygen demand increases, plants often face two practical challenges: keeping oxygen quality stable while consumption fluctuates and scaling capacity without creating a footprint-heavy installation. MULTISEP addresses these realities with a high‑flow design approach intended for 24/7 industrial service. This makes it a strong fit when oxygen moves from “consumable” to “infrastructure,” and teams need a solution that can be managed like any other plant utility—monitored, controlled, and maintained with clear operating visibility.

PSA Oxygen Technology in Clear, Technical Terms

MULTISEP uses Pressure Swing Adsorption (PSA) to separate oxygen from ambient air. In PSA operation, compressed air passes through molecular sieve beds that preferentially retain nitrogen under pressure while oxygen flows through as the product gas. The generator then cycles to regenerate the sieve by reducing pressure and purging the retained nitrogen. By alternating between production and regeneration phases, the system provides continuous oxygen output suitable for industrial processes without the need for cryogenic separation infrastructure.

Output Range, Purity Options, and Delivery Pressure

The MULTISEP series covers oxygen production from 78 to 435 m³/h, with selectable oxygen purity levels of 90%, 93%, or 95%, delivered at 4–6 bar. These parameters align well with many high-demand applications where oxygen is fed directly into processes or distributed across multiple end-use points. When specifying the system, it’s best to consider not only the average oxygen requirement but also peak consumption patterns and how quickly peaks occur, because real-world demand profiles influence both generator sizing and downstream buffering strategy.

Why Compressed Air Quality Is the “Hidden Performance Driver”

In high-flow PSA systems, inlet air conditions are a major determinant of output stability and adsorbent life. Properly dried and filtered compressed air helps maintain consistent oxygen purity and supports long-term reliability. Many industrial projects define compressed air cleanliness using ISO 8573 1 classes for particles, water, and oil. Designing the air treatment package to a defined air class is one of the most effective ways to protect PSA performance and reduce avoidable service costs over the lifecycle.

Moisture Control, Dew Point, and System Reliability

Dew point and moisture control become even more important at higher flows, especially when oxygen is distributed through longer piping runs or across areas with variable temperatures. A dry oxygen stream supports stable regulation, reduces condensation risk in the network, and protects valves, instrumentation, and end-use equipment. In practice, moisture management is less about a single spec line and more about building a system that stays predictable across seasons, shifts, and changing plant conditions.

Monitoring, Control, and Plant Integration

MULTISEP is designed for industrial operation with continuous oxygen quality monitoring and an operator-friendly control environment. For automation and maintenance teams, connectivity options enable integration into common plant control architectures, improving visibility of operating states and alarms. This helps teams respond faster, build practical maintenance routines, and track performance over time—particularly valuable when oxygen is essential to production continuity.

Typical Applications for High Flow Oxygen

High-flow oxygen supports a wide range of industrial processes where oxygen improves efficiency, process control, and throughput. MULTISEP is well suited for applications such as water and wastewater treatment, ozone-related systems, aquaculture, glass and metal production processes, and oxygen-supported cutting and welding—especially when a stable on-site supply is preferred over external deliveries and storage logistics.

How to Select the Right MULTISEP Configuration

Start with the oxygen flow required at your target purity and delivery pressure, then map your demand profile across shifts, batches, and seasonal peaks. Next, confirm that the compressed air system can deliver consistent inlet pressure and the required air quality class, because inlet conditions strongly influence PSA performance. Finally, design the downstream side—buffering, regulation, and distribution layout—to keep oxygen delivery stable at the points of use. A well-sized oxygen buffer tank is often the most practical tool for smoothing short peaks, stabilizing line pressure, and keeping the generator operating efficiently under real demand behavior.

Standard features

  • Designed for dynamic pressure loading
  • Modbus TCP, Ethernet connection
  • Stainless steel piping
  • Built in purity analyzer for constant monitoring
  • Data-logging via USB interface
  • SIEMENS colored touch screen control
  • Remote start/stop relay

Optional features

  • Energy saving valve – reduces compressed air usage during turn down
  • Flow control valve – flow & purity adjustment
  • Purity control – off spec purge
  • Sequential start/stop – one button operation
  • Remote monitoring
  • Audio-visual alarm
  • SMS alarm
  • and other

Oxygen generators

Produce gaseous oxygen from compressed air on site and offer a cost-effective, reliable and safe alternative to traditional oxygen gas supplies such as cylinders or cryogenic liquid. Our design is made for round the clock 24/7 operation. Each generator is equipped with automatic start&stop function, enabling the generator to start and stop automatically according to the consumption.


PSA Technology

PSA Oxygen Generator consists of two columns filled with a zeolite molecular sieve. Pre-treated compressed air enters the active column and flows up through the zeolite. Nitrogen and other unwanted gases are adsorbed while the oxygen passes through. The active column then becomes fully pressurized. When this pressure is released, the column becomes inactive and completely regenerates during the depressurization. In order to secure a steady flow of oxygen each generator is built from two columns; one is active while the other is inactive. At the end of each columns cycle, they switch roles.

Flow

78 - 435 m3/h


Outlet pressure

4-6 bar


Purity

90, 93, 95 %


Operating time

24/7

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FAQs

MULTISEP is intended for significantly higher oxygen demand and is engineered to deliver high flow while maintaining industrial delivery pressure and continuous operation. It is typically selected when oxygen is used across multiple consumption points or when production depends on a stable oxygen utility that must remain available 24/7. In practical terms, MULTISEP is the choice when compact models are no longer sufficient and the plant needs a higher-capacity solution that supports utility-style operation and monitoring.