500 LPM of medical‑grade oxygen, generated onsite.

Why onsite PSA oxygen generation matters

At Neometrix Group, we specialize in advanced medical and industrial oxygen solutions that ensure a continuous, high-purity oxygen supply for hospitals, healthcare facilities, and critical applications. Our 500 LPM PSA Oxygen Generation Plant is a cutting-edge, fully automated system that eliminates the need for traditional oxygen cylinders by producing medical-grade oxygen (93±3%) onsite. Built with state-of-the-art PSA technology, the system offers cost-effective, energy-efficient, and highly reliable oxygen production, meeting international medical standards. With a robust design, intelligent automation, and minimal maintenance requirements, Neometrix Group is committed to empowering healthcare providers and industries with a sustainable, self-sufficient oxygen generation solution that ensures life-saving support whenever needed.

The 500 LPM PSA Oxygen Generation Plant is designed for hospitals, emergency healthcare facilities, and industrial applications. This system eliminates the need for traditional oxygen cylinders, providing an onsite, uninterrupted supply of high-purity oxygen using Pressure Swing Adsorption (PSA) technology, and adheres to Indian Medical Standards, ISO 8573 Class 4 air quality norms, and international medical oxygen regulations.

Working principle — PSA technology

The 500 LPM PSA Oxygen Generation Plant operates on Pressure Swing Adsorption (PSA) technology, a proven method of separating oxygen from nitrogen using molecular sieves. The process ensures continuous oxygen supply by alternating between adsorption and regeneration cycles in twin-tower PSA beds:

• Air compression & filtration: Ambient air is compressed, dried, and filtered to remove moisture, dust, and oil particles before entering the PSA unit.
• Adsorption cycle: The compressed air passes through zeolite molecular sieves, which selectively adsorb nitrogen while allowing oxygen to pass.
• Regeneration cycle: Once one PSA tower is saturated with nitrogen, the system automatically switches to the second tower, while the first tower releases nitrogen into the atmosphere and regenerates.
• Continuous oxygen flow: The cyclic process repeats continuously, ensuring a steady supply of high-purity oxygen.

Technical specifications

Key features & advantages, in detail

1. High-purity medical-grade oxygen production

Provides a constant supply of 93±3% pure oxygen, suitable for hospital pipelines, ICUs, and ventilators. Ensures compliance with medical and healthcare standards to meet regulatory guidelines.

2. Fully automated & intelligent PLC control system

PLC-based automation allows seamless operation with minimal manual intervention. A user-friendly HMI touchscreen interface enables real-time monitoring of oxygen purity, pressure, and flow rate. The system is equipped with smart alerts and alarms for low purity levels, pressure fluctuations, and system malfunctions.

3. Energy-efficient & low maintenance design

The plant is optimized for low power consumption, reducing operational costs. Self-cleaning filtration and long-lasting Zeolite Molecular Sieves (5+ years lifespan) minimize maintenance. Auto-drain valves and self-regulating filters keep the system running efficiently with minimal intervention.

4. Robust & reliable industrial-grade components

Screw-type air compressor provides stable and efficient compressed air supply. A medical-grade air receiver tank stores compressed air to ensure continuous airflow. Advanced multi-stage filtration removes dust, oil, and moisture, enhancing PSA efficiency, and the twin-tower PSA system alternates between adsorption and regeneration cycles to maintain consistent oxygen output.

5. Safety & compliance with medical standards

The plant is equipped with oxygen purity sensors, pressure regulators, and fail-safe mechanisms. Built-in power fluctuation protection ensures consistent operation with a Servo Voltage Stabilizer. An emergency stop button allows instant shutdown during hazardous situations, and the system has an exhaust gas outlet for safe nitrogen disposal, reducing oxygen contamination risks.

6. Compact & modular design for easy installation

Pre-assembled and factory-tested, allowing for quick installation and commissioning. Requires minimal space, making it ideal for hospitals, mobile medical units, and industrial applications.

System components & their functions

The 500 LPM PSA Oxygen Generation Plant consists of high-quality, industrial-grade components designed for reliability, efficiency, and durability.

A. Air compression & purification system

• Screw-type air compressor — compresses ambient air to the required pressure.
• Air receiver tank — stores compressed air and ensures stable airflow.
• Pre-filters & micron filters — remove dust, oil mist, and fine contaminants.
• Refrigerated air dryer — eliminates moisture for dry air supply.
• Activated carbon filter — removes hydrocarbons and residual oil traces.

B. PSA oxygen generation unit

• Twin-tower PSA system — filled with high-quality zeolite molecular sieves to separate oxygen from nitrogen.
• Oxygen buffer tank — stores the produced oxygen before supply.
• Micro & bacterial filters — ensure high-purity, medical-grade oxygen.

C. Control & monitoring system

• PLC control panel with HMI touchscreen — enables real-time monitoring and fully automated operation.
• Oxygen purity sensor — continuously monitors oxygen levels and triggers alarms if purity drops.
• Emergency alarm system — alerts for low purity, pressure fluctuations, and system failures.

Installation & operational guidelines

Installation requirements

• Should be installed in a well-ventilated room with temperature below 43°C.
• Requires a 3-phase 415V AC power supply with Servo Voltage Stabilizer.
• Oxygen pipeline connection must be properly secured.
• Exhaust gas must be vented safely to the atmosphere.

Operational steps

• Switch on main power & Servo Voltage Stabilizer.
• Start compressor & air dryer.
• Activate PLC & HMI control panel.
• Monitor oxygen purity and pressure.
• System enters auto-mode, generating oxygen continuously.

Routine maintenance & service schedule

• Daily — check compressor oil levels and system pressure.
• Weekly — inspect oxygen purity levels and air dryer condensate.
• Monthly — check all filters and drainage systems.
• Semi-annually — replace filter elements and calibrate oxygen purity sensors.
• Annually — perform full system diagnostics and valve maintenance.
• Every 5–6 years — replace Zeolite Molecular Sieves in PSA towers.

Medical-grade oxygen purity standards in PSA systems

The PSA oxygen generation plant delivers medical-grade oxygen with purity levels typically ranging between 93%±3%, complying with global healthcare standards. The molecular sieve technology selectively adsorbs nitrogen, ensuring high oxygen concentration suitable for hospital and clinical use. Continuous monitoring systems validate oxygen purity in real time, ensuring patient safety and regulatory compliance.

Integrated oxygen analyzers and fail-safe mechanisms ensure that any deviation in purity triggers alarms or automatic shutdown. This guarantees that only compliant oxygen is supplied to medical pipelines. The system is designed to meet stringent healthcare requirements, making it ideal for ICU support, emergency care, and centralized oxygen supply systems.

Energy efficiency & operating costs

Energy efficiency is a key advantage of PSA oxygen generation plants, significantly reducing dependency on cylinder-based oxygen supply. The system optimizes compressed air usage and adsorption cycles, resulting in lower power consumption compared to traditional oxygen sourcing methods. Advanced control systems ensure efficient switching between adsorption and regeneration phases.

Operating costs are minimized through reduced logistics, lower maintenance requirements, and elimination of recurring cylinder refilling expenses. The plant’s automated operation reduces manpower needs, further improving cost efficiency. Over time, the return on investment becomes highly favorable, especially for high-demand facilities such as hospitals and industrial units.

Installation & space requirements

The PSA oxygen generation plant is designed for compact installation, requiring minimal floor space compared to bulk oxygen storage systems. The modular skid-mounted design allows easy installation within existing infrastructure, whether indoors or outdoors. It can be installed in hospitals, manufacturing plants, or remote facilities with limited space availability.

Installation requirements include a stable power supply, adequate ventilation, and proper compressed air integration. The system is engineered for quick commissioning, reducing downtime and enabling rapid deployment. Flexible layout options ensure that the plant can be customized according to site-specific constraints and operational needs.

Compliance & certifications

The PSA oxygen generation plant is built in accordance with international compliance standards to ensure safe and reliable operation. It adheres to medical-grade oxygen production guidelines and meets regulatory requirements for healthcare and industrial use, including Indian Medical Standards and ISO 8573 Class 4 air quality norms. Certifications may include ISO standards, CE marking, and relevant pressure vessel compliance norms.

Safety features such as pressure relief systems, emergency shutdown mechanisms, and compliance-tested components ensure operational integrity. The system is designed to meet stringent quality and safety benchmarks, providing confidence to hospitals, OEMs, and industrial users in critical environments.

Maintenance & support

The PSA oxygen generation plant is engineered for low maintenance with long-lasting components and minimal wear parts. Routine maintenance includes filter replacement, compressor servicing, and periodic inspection of valves and sensors. The system’s design ensures easy access to key components, simplifying servicing procedures.

Advanced diagnostics and remote monitoring capabilities enable predictive maintenance, reducing unexpected downtime. Neometrix provides comprehensive after-sales support including installation, commissioning, operator training, preventive maintenance, and on-site service for the PSA Oxygen Generation Plant-500 LPM.

Applications for healthcare & industry

PSA oxygen generation plants are widely used across healthcare and industrial sectors due to their reliability and cost efficiency. In healthcare, they support hospitals, ICUs, operation theatres, and emergency oxygen supply systems — as well as field hospitals and military medical units. The ability to generate medical-grade oxygen on-site eliminates dependency on external suppliers.

In industrial applications, PSA systems are used in metal cutting, glass manufacturing, wastewater treatment, and chemical processing. The consistent oxygen purity and continuous supply make them ideal for operations requiring stable oxygen flow. Their adaptability and scalability make PSA oxygen plants a versatile solution across multiple industries.

Conclusion

The PSA Oxygen Generation Plant-500 LPM sets a dependable benchmark for onsite medical oxygen supply. Its high-purity output, intelligent automation, and robust safety measures make it an indispensable asset for hospitals, healthcare institutions, and industrial facilities seeking a sustainable, self-sufficient oxygen generation solution.