If you’re evaluating an on-site nitrogen solution, one of the first decisions you’ll face is choosing between a membrane system and a PSA N2 generator. Both technologies are proven, efficient, and widely used across industries — but the right choice depends on your purity requirements, flow rates, application, and long-term operational goals.

At OnSite Gas Systems, we help businesses determine which nitrogen generation technology delivers the best return on investment. Below, we break down the differences between membrane and PSA nitrogen generators — and when a PSA N2 generator may be the better fit.

Understanding a PSA N2 Generator

A PSA N2 generator (Pressure Swing Adsorption nitrogen generator) uses Carbon Molecular Sieve (CMS) material to separate nitrogen from compressed air. Oxygen and other gases are adsorbed under pressure, allowing high-purity nitrogen to pass through. The system then depressurizes and regenerates the CMS in a continuous cycle.

Key Advantages of a PSA N2 Generator:

• High nitrogen purity (up to 99.999%)
• Consistent purity levels
• Ideal for demanding high purity applications
• Excellent long-term ROI compared to cylinder delivery

Because PSA systems can achieve ultra-high purity levels, they are commonly used in industries such as:

• Food & beverage packaging
• Electronics manufacturing
• Laser cutting
• Pharmaceutical production
• Oil & gas applications
• Chemical processing

If your operation requires nitrogen purities above 99.5%, a PSA N2 generator is typically the preferred solution.

Understanding Membrane Nitrogen Generators

Membrane nitrogen generators use semi-permeable membrane fibers to separate nitrogen from compressed air. Oxygen, water vapor, and other gases permeate through the membrane faster than nitrogen, leaving a nitrogen-enriched stream.

Key Advantages of Membrane Systems:

• Simple design with fewer moving parts
  Compact footprint
• Minimal maintenance requirements
• Ideal for low to moderate purity applications

Membrane systems typically deliver nitrogen purity levels between 95% and 99.5%, making them well-suited for:

• Tire inflation
• Fire prevention systems
• Inerting applications
• Marine and offshore use
• Oil & gas blanketing (lower purity requirements)

Feature	PSA N2 Generator	Membrane Generator
Nitrogen Purity	Up to 99.999%	95%–99.5%
Best For	High-purity applications	Low to moderate purity applications
Flow Rate	High capacity systems	Typically higher flow capacity
Maintenance	Scheduled filter replacements	Minimal maintenance with scheduled filter replacements
Energy Efficiency	Highly efficient at high purity	Efficient at moderate purity

When a PSA N2 Generator Is the Right Choice

A PSA N2 generator is often the best solution when:

• You require nitrogen purity above 99.5%
• Product quality or safety depends on consistent purity
• You operate continuously and need reliable performance
• You want long-term cost savings over cylinder or bulk nitrogen

Total Cost of Ownership Considerations

When comparing membrane and PSA N2 generator systems, it’s important to look beyond the purchase price. Consider:

• Energy consumption
• Compressed air quality requirements
• Maintenance intervals
• Downtime risk
• Cost of nitrogen purity shortfalls
• Growth scalability

For many industrial operations, a PSA N2 generator pays for itself quickly by eliminating recurring nitrogen delivery costs and reducing supply chain dependency.

Partner With OnSite Gas Systems for the Right Nitrogen Solution

Choosing between a membrane system and a PSA N2 generator is a strategic decision that impacts performance, operating costs, and long-term reliability.

OnSite Gas Systems designs and manufactures high-performance nitrogen generation systems tailored to your exact purity, flow, and application requirements. Our team works closely with you to evaluate your current nitrogen usage, calculate ROI, and engineer a solution that maximizes efficiency and minimizes downtime.

Whether you need a high-purity PSA N2 generator for critical applications or a cost-effective membrane system for moderate purity needs, OnSite Gas Systems delivers turnkey systems backed by decades of expertise.

Ready to determine which nitrogen generator is right for your operation? Contact OnSite Gas Systems today to speak with a nitrogen generation specialist and request a customized quote.

As industries continue to look for ways to reduce operating costs, improve reliability, and gain greater control over their processes, on-site nitrogen generation has become an increasingly attractive solution. While many facilities understand the benefits of nitrogen generators, a common question remains: How easily can a nitrogen generator be integrated into an existing industrial system?

The good news is that modern nitrogen generators are designed with flexibility in mind. With proper planning, integration can be smooth, efficient, and minimally disruptive—while delivering long-term operational advantages.

Why Integrate an On-Site Nitrogen Generator?

Traditionally, industrial nitrogen has been supplied via high-pressure cylinders or bulk liquid deliveries. While these methods work, they come with recurring costs, logistical challenges, and supply chain risks. Integrating an on-site nitrogen generator allows facilities to:

• Produce nitrogen on demand
• Eliminate delivery schedules and rental fees
• Improve workplace safety
• Gain consistent nitrogen purity and pressure
• Reduce long-term operating expenses

For facilities already using nitrogen in manufacturing, packaging, laser cutting, food processing, or chemical applications, integration is often a natural next step.

Evaluating Your Existing System

Before integration begins, it’s essential to assess how nitrogen is currently being used throughout your facility. This evaluation typically includes:

• Flow rate requirements (current and future demand)
• Required nitrogen purity levels
• Operating pressure needs
• Available space and utilities
• Compressed air capacity

Understanding these factors helps ensure the nitrogen generator is properly sized and configured to support your existing processes without interruption.

Seamless Connection to Existing Infrastructure

One of the biggest advantages of modern nitrogen generators is their ability to connect directly to existing plant infrastructure. In most cases, integration involves tying the generator into:

• Existing compressed air systems
• Nitrogen distribution piping
• Storage tanks or buffer vessels
• Control and monitoring systems

Because nitrogen generators operate continuously and automatically, they can often replace or supplement existing nitrogen supply methods during a phased transition—allowing production to continue uninterrupted.

Maintaining Purity, Pressure, and Performance

Industrial systems depend on consistency. When integrating a nitrogen generator, maintaining proper purity and pressure is critical. Advanced PSA (Pressure Swing Adsorption) nitrogen generators are engineered to deliver precise nitrogen specifications tailored to each application.

Integrated sensors and controls continuously monitor performance, automatically adjusting output to meet real-time demand. This ensures your downstream equipment receives the nitrogen it needs—without overproduction or waste.

Minimal Downtime During Installation

A common concern with any system upgrade is downtime. Fortunately, nitrogen generator integration can often be completed with minimal disruption. Many facilities choose to:

• Install the generator alongside existing supply systems
• Once the nitrogen generator is installed it can immediately start feeding nitrogen to your application.

Partnering with the Right Nitrogen Generation Expert

Successful integration depends on working with an experienced nitrogen generation partner. At On Site Gas Systems, integration goes beyond equipment delivery. Our team can assist in designing a solution tailored to your facility, and support installation, commissioning, and long-term performance.

For facilities looking to optimize operations and reduce dependency on external nitrogen suppliers, integration is not just feasible—it’s a strategic advantage!

Nitrogen is important in a variety of industrial settings. From food packaging and beverage creation to metallurgy, pharmaceuticals, aerospace, and other industries, nitrogen is required to support a variety of essential functions.

Although nitrogen is an important gas in many industries, finding an efficient gas source can present a challenge to some businesses. Traditional nitrogen supply methods entail the use of nitrogen cylinders or liquid nitrogen. These methods require regularly deliveries and can take up valuable space on a warehouse floor. Controlling nitrogen purity can be a challenge with nitrogen cylinders, and these cylinders also present an ongoing cost that can cut into profits.

This is why many businesses turn to nitrogen generators for a steady, limitless supply of nitrogen. Nitrogen generators offer convenience at a low operating cost and can save businesses money over time.

Companies that need quality generators turn to On Site Gas Systems for their nitrogen generation needs. We offer nitrogen generators that are built to last. Here’s what you need to know about our nitrogen gas generators.

Overview of On Site Gas Systems Nitrogen Generators

On Site Gas Systems is a company that manufactures nitrogen generators for businesses in a range of industries. We supplycustom nitrogen generator systems for businesses to meet their unique needs.

We build nitrogen generator systems of various types including PSA nitrogen gas generators and membrane nitrogen gas generators for companies in many industries including food and beverage industries, medical and pharmaceutical industries, electronics, labs, and more.

Customization and Flexibility

Every business is different, so we offer customizable solutions tailored to specific industry needs and requirements. We work with each of our clients to determine what flow rates, purities, and pressures are required to fulfill their manufacturing and production needs.

This flexibility ensures that our clients get the right system for their needs, budget and also for their business. Working with the experts at On Site Gas Systems helps ensure that the system your company buys will last for a long time and produce nitrogen of the purity and at the rate required to keep your business running efficiently.

Reliability and Quality

On Site Gas Systems has been in business for more than 35 years, and throughout that time, we’ve helped businesses augment or replace their gas delivery methods. Many of our customers save up to 80% on gas-related costs, and because our systems are designed to last, these cost savings go on year after year.

We meet all USP standards for food grade and medical grade N2 and O2 production, and have CE marking, FDA approval, and we’re UL-listed because our products meet safety and quality standards in a range of ways. We also have ISO 9001:2015 and ISO 13485:2016 certifications to show that we meet global standards for quality management and medical devices.

Cost-Effectiveness

On Site Gas Systems’ nitrogen generators provide a cost-effective solution compared to liquid nitrogen delivery and nitrogen gas cylinders.

Whereas nitrogen delivery systems represent an ongoing cost that creates storage problems, your nitrogen generator from On Site Gas Systems only needs to be delivered and installed once. Our systems take up very little floor space and need little energy to run. In addition, nitrogen delivery systems can experience supply chain problems that can cause delivery delays leading to production delays and administrative headaches. This is not the case with nitrogen generators from On Site Gas Systems.

In one study, the cost of a business requiring four million liters of nitrogen per year might spend $70,650 on nitrogen gas deliveries over three years. That same business would spend only $33,456 on 4 million liters of nitrogen over the course of three years with a nitrogen gas generator from On Site Gas Systems. The business that buys the nitrogen gas generator saves approximately $37,194 in three years.

Technological Innovation

On Site Gas Systems generators are energy efficient and allow for remote monitoring. They also have advanced control systems that allow users to produce nitrogen at the rate and purity they need to operate their business. Our nitrogen generators are designed and built by experts in their field for reliable, easy functioning.

Environmental Benefits

There are many environmental advantages to using On Site Gas Systems’ nitrogen generators. Once your nitrogen generator has been installed, you’ll enjoy decreased dependency on transported nitrogen supplies. In addition, nitrogen generators go into standby mode when no gas is needed, and the systems continuously monitor nitrogen output to ensure that it’s only generating what is required. This helps save energy and reduces waste.

Customer Support and Service

On Site Gas Systems is known for its excellent customer support. We provide start-up training, maintenance, and troubleshooting for your nitrogen gas system. Clients come to us because they trust us to be available when required for repair and replacement assistance.

See For Yourself What Sets On Site Gas Apart

On Site Gas Systems creates nitrogen generators that are cost-effective, energy-efficient, long-lasting, and customized for your business needs. To find out more about getting a nitrogen generator from On Site Gas Systems, contact us today.

Laser cutting is a process that is often used in industries that use metal working to produce their goods. It can be used for cutting beams, pipes, tubing, sheet metal, and more. Industries like construction, automotive, and aerospace use laser cutting on a regular basis.

The process of laser cutting requires a steady supply of gas for functionality, and the most widely used gas for laser cutting is nitrogen gas. If your business needs a laser to operate, then nitrogen gas is one of your best options, and an N2 generator is likely an essential tool for your factory floor. Here’s what to know about nitrogen gas and its use with laser cutting.

Fundamentals of Laser Cutting

Laser cutting is a process that slices metals with a high-powered laser beam. Lasers can be used to cut stainless steel, aluminum and carbon steel. Assist gas is the gas that’s used to ensure the quality and performance of the laser. The kind of gas you choose to use for your laser cutting depends on variables like what material is being cut and the thickness of the material.

Nitrogen Laser Cutting vs. Other Gases

Nitrogen is often identified as one of the leading gasses for laser cutting. Compared to gasses like air and CO2, nitrogen takes the lead. Air assisted laser cutting is not as precise, powerful or efficient. Air is sometimes used because it is abundant and easily made available, but air assisted laser cutting is not appropriate for every industry.

CO2 laser cutting has a similar problem. Like air assisted laser cutters, CO2 laser cutters cannot always slice through thick materials and are often very slow. CO2 is also very expensive. Many businesses opt for another option when using laser cutters for their industrial purposes.

Nitrogen Gas in Laser Cutting

Because of the disadvantages of the gases listed above, nitrogen gas laser cutters are common. There are many reasons that manufacturers turn to nitrogen gas when laser cutting, including:

• Nitrogen gas makes an excellent cut that is efficient and accurate.
• Nitrogen gas assists with the dissipation of heat, so the edge of the cut cools more quickly than other gases.
• Cuts made with nitrogen gas have reduced discoloration along the cut edge.

Benefits of Using Nitrogen Gas

There are many reasons to use nitrogen gas over other gases in laser cutting processes. Nitrogen gas laser cutting is incredibly flexible, and this type of gas can be used for all laser cutting operations. It’s an excellent gas assist for cutting aluminum as well as stainless steel, and because the gas is inert, there are no other additional heat-producing reactions that occur while the laser cutter is functional. This allows operators to achieve cleaner cuts more quickly. Below are some of the many advantages of using nitrogen assist laser cutters.

Benefits of Using a Nitrogen Generator For Your Laser Cutter

If you have a laser cutter and are using nitrogen as your assist gas, you’ll be faced with the question of whether to use a nitrogen generator or rental cylinders. Using a nitrogen generator can make the process better and more efficient. There are many reasons to use a nitrogen generator over nitrogen cylinders. Some examples:

• Nitrogen generators provide tremendous cost savings over traditional gas delivery methods
• Nitrogen generators allow for variable purity options that maximize cut quality, efficiency and production costs
• Generators produce a constant supply of nitrogen and can operate 24/7 without the chance of running out of nitrogen. Being dependent on nitrogen deliveries can create a downtime in production if nitrogen deliveries are delayed for any reason.

Does Your Business Need Nitrogen Generators for Laser Cutting

Nitrogen generators for laser cutting are an essential tool for most businesses that regularly use laser cutting as a part of their industrial processes.

It’s important to choose the right assist gas for your business’ laser cutting needs. If your business needs a nitrogen laser cutter, then a laser cutting nitrogen generator is an essential part of your industrial operations. On Site Gas Systems makes laser nitrogen generators for industrial operations. If you’re seeking a nitrogen generator for laser cutting, contact On Site Gas Systems.

If your business is nitrogen dependent, then a nitrogen gas generator may be the right piece of equipment for your industrial processes. Nitrogen gas generators are an essential tool for businesses in pharmaceuticals, food processing, metallurgy, aerospace, and more. If your business has a need for nitrogen and is currently dependent upon nitrogen cylinders or liquid nitrogen you could be losing money on monthly expenses relating to nitrogen deliveries.

Purchasing a nitrogen generator system can help your business save money while also ensuring that your business will have the continuous supply of nitrogen that it needs to keep functioning. Before installing a nitrogen generator, it’s important to understand the many ways your business must prepare for this type of installation.

Why Get An N2 Gas Generator Installed?

Does your business need a nitrogen generation system? Below are some of the benefits of nitrogen generator installation:

• Generators offer a continuous supply of nitrogen provided at a minimal monthly expense
• Nitrogen generators need little monthly maintenance to function
• Nitrogen generators are far more efficient and eco-friendly than nitrogen cylinders
• Your business can save money on regular nitrogen costs with a generator

What To Consider Before Installing a Nitrogen Generator System

Before installing a nitrogen generator in your business, there are many notable factors. Here’s what to know about when trying to decide if a nitrogen generator is right for your business:

Do You Have the Space?

Nitrogen generators don’t have to be very large. In fact, membrane nitrogen generators, with no moving parts, have a relatively small footprint and can easily be used for mobile applications. The size required for a generator depends on how much nitrogen gas is needed for your process. Still, even businesses that need a lot of nitrogen can get by with a relatively small nitrogen generator. If you’re not sure what size generator is right for your needs, speak with the experts at On Site Gas Systems.

Infrastructure Considerations

Because nitrogen generators extract nitrogen from the air in the environment, your nitrogen generator will need piping from your compressed air supply. Your business may already have this type of piping network in place for your industrial processes. If this is the case, you may not need to make changes to your facility. However, if your facility does not have this piping in place, you’ll need to get it in place before the generator can be run on site. Work with your generator manufacturer to ensure that the piping that you’ve installed is adequate for your nitrogen generator.

Power Source

Your nitrogen generator will need a power supply. Nitrogen generators only require a minimum of power. Usually, no more power than it takes to run a desktop computer.

Ventilation Requirements

Ventilation is required for the space around the nitrogen generator. The nitrogen generator will expel waste (mainly in the form of low-concentrated oxygen) that should be ventilated from the space. Under normal conditions, the area where the nitrogen generator is located will have natural ventilation, and no changes are needed.

Ready to Install An N2 Generator System? Contact On Site Gas

At On Site Gas, we specialize in crafting custom nitrogen gas generation systems tailored to meet diverse industrial needs. Reach out to us today to explore more about installing and specifying an efficient N2 generation system, ensuring a seamless integration into your business operations.