NITROGEN GENERATORS
Nitrogen generators provide a reliable, cost-effective way to produce high-purity nitrogen on-site—eliminating the need for delivered gas cylinders or bulk liquid nitrogen. At On Site Gas Systems, we design and manufacture advanced nitrogen generator systems engineered for performance, efficiency, and long-term savings.
Whether you need a compact membrane system or a high-purity PSA nitrogen generator, our solutions are built to meet a wide range of industrial, laboratory, and commercial applications. Our systems deliver nitrogen on demand with purity levels up to 99.9995%, helping businesses improve uptime, reduce costs, and maintain complete control over their gas supply.
Learn everything you need to know about nitrogen generators from On Site Gas Systems and how this advanced technology delivers a reliable, on-site gas supply for your operation!
Nitrogen Generator FAQs
A nitrogen generator is a piece of equipment that separates oxygen out of the air and allows the remaining nitrogen to be used in many industrial, manufacturing, and inerting processes. Nitrogen generators are a cost-effective alternative to purchasing nitrogen gas due to the ongoing cost of nitrogen gas cylinders or bulk nitrogen deliveries. On-site nitrogen generation is widely used across industries including manufacturing, food packaging, electronics, oil & gas, and pharmaceuticals.
Types of Nitrogen Generators
PSA NITROGEN GENERATORS
PSA (Pressure Swing Adsorption) nitrogen generator systems will generate high purity N2 gas by separating the molecules from ordinary air.
MEMBRANE NITROGEN GENERATORS
A nitrogen membrane system will generate high volume flows to meet your n2 gas needs.
NITROGEN ENGINEERED SYSTEMS
Customized-engineered and turnkey nitrogen generator systems.
NITROGEN CONTAINER SYSTEMS
Nitrogen container systems for highly efficient, cost-effective nitrogen gas generation.
NITRO BLAST NITROGEN GENERATOR
On location nitrogen generators to be used in storage and tap delivery of beverages.
NITROGEN CYLINDER FILLING
Compare to the costs of bottled N2 gas. Fill your own nitrogen gas cylinders and save with our nitrogen generators.
How to Spec Your Nitrogen Generator System
Specifying the right nitrogen generator starts with understanding your application requirements and aligning them with system performance. The first step is determining your nitrogen demand—how much gas your operation uses per hour, cycle, or production run. Be sure to account for peak usage and future growth to avoid undersizing your system.
Next, define your required nitrogen purity. Different applications—from food packaging to electronics manufacturing—require varying purity levels, typically ranging from 95% up to 99.999%. Higher purity levels often require larger systems and more compressed air, increasing both capital and operating costs.
From there, calculate your flow rate, typically measured in CFM or Nm³/h. This should reflect real-world usage, including simultaneous processes and demand fluctuations. It’s important to balance flow rate with purity, as higher purity can reduce output capacity and require additional system sizing considerations.
Finally, consider operating pressure and air supply requirements. Nitrogen generators rely on compressed air, and factors like air-to-nitrogen ratio, temperature, and system design all impact performance and efficiency.
By carefully evaluating demand, purity, flow, and pressure, you can confidently spec a nitrogen generator that delivers reliable, cost-effective performance tailored to your operation.
Talk to our Nitrogen Generator Experts
Our nitrogen generator experts can design any size system to meet your specific n2 gas needs and specifications. We offer a wide array of nitrogen generator systems and accessories. Whatever your industry or nitrogen generator application, we will work with you to create the best solution.
Why On Site Nitrogen Generators vs. Cylinders?
Cost-effective.
On-site nitrogen gas generators can be purchased for a one-time cost versus buying nitrogen in gas cylinders or bulk liquid nitrogen, which represents an ongoing cost for as long as you rent or buy them. After a one-time purchase of a nitrogen generator, it only takes five amps of power, which will result in huge cost savings over the years.
Space efficient.
An on-site nitrogen generator will typically take up less space than nitrogen cylinders or bulk tanks. Some businesses must devote a lot of space to nitrogen cylinders, especially if they need quite a bit of nitrogen for their manufacturing processes.
No waste.
Nitrogen cylinders automatically waste nitrogen, as only about 70% of the nitrogen in a cylinder can be used. Nitrogen gas generators only produce nitrogen as needed, so none goes to waste.
Eco-friendly.
Nitrogen cylinders must be delivered on an ongoing basis, thus using fossil fuels. Nitrogen generators are better for the environment.
Why On Site Gas Systems?
Why Our Nitrogen Gas Generators?
For more than thirty years, On Site Gas Systems Inc., has been a world leader in the design and manufacturing of N2 gas generators, with two Connecticut-based ISO 9001-2015 and ISO 13485-2016 certified factories.
Did you realize that 79% of the air we breathe is made of n2 gas? This gas not only sustains us, but it is also essential for a vast number of professional processes across various industries, depending on a reliable and consistent supply of nitrogen. There are many, but some of the most common uses of nitrogen include:
- Electronics Manufacturing
- Food Packaging
- Manufacturing Processes
- Metal and Heat Treating
- Adhesive Purge
- Medical Processes
On Site Gas Systems Nitrogen Generators can provide a flow of up to 99.9995% n2 gas, simply with the press of a button. Each UL and CE-certified commercial nitrogen generator is equipped with an oxygen analyzer to instantly read purity level. With thousands of systems operating in over 100 countries, On Site Gas Systems can supply you a safe and cost-effective nitrogen generator that will meet your n2 gas needs for twenty plus years.
We’re Convenient
A variety of industries may benefit from a nitrogen generator. The ability to produce your own n2 gas ensures you’ll never run out and your business will continue to operate smoothly. An On-Site Gas Systems Nitrogen Generator meets your needs on demand, whenever and wherever you need it, and consistently shows up for your business.
We’re Efficient
On Site Gas Systems provides some of the most efficient nitrogen generators in the world due to their low air-to-nitrogen ratio. We utilize only the best and most efficient Carbon Molecular Sieve (CMS) which provides lower feed air supply, resulting in a more efficient system and ultimately, more cost savings for your bottom line.
We’re Competitively Priced
Our systems are competitively priced and have some of the lowest operational and maintenance costs in the industry. Most On Site Gas Systems Nitrogen Generators have an ROI of under 18 months and after that, provide n2 gas to our clients at a fraction of the supplier cost.
We’re Safe, Effective and Reliable
Our nitrogen gas generator systems can deliver continuous n2 gas at a specified flow rate and purity level.
Many modern business processes can benefit from innovative equipment like the nitrogen gas generators from On Site Gas Systems. Our turnkey nitrogen gas generators can be put online as soon as they arrive at your location and offer unparalleled ease of use for a diverse range of applications across various industries.
Don’t struggle with the hassles of inefficient nitrogen gas generator systems and costly nitrogen supply and delivery. With nitrogen gas generators from On Site Gas Systems Inc., you can produce the n2 gas your business requires, whenever and wherever you need it.
To learn more about our nitrogen generation systems for sale, or to receive a quote, contact On Site Gas today!
On Site Gas is the Leader in Building the Perfect Nitrogen Generation System
We manufacture only the highest-grade nitrogen generators at both of our ISO 9001-2015 and ISO 13485-2016 certified plants (located in the USA), built by our team of exceptionally experienced engineers. The result of their work allows our customers to not only acquire the most dependable and cost-effective solution available anywhere on the planet, but also a nitrogen generator that is custom-matched to suit your individual needs. We at On Site Gas pledge secure, reliable, and economical nitrogen generators to our customers.
On Site is top flight when it comes to customizing a nitrogen generator system for your business, as our products are ones that you can depend on to operate your day-to-day production effortlessly, and without interruption. To learn more about the nitrogen generation system that suits your needs, consult with a member of our customer care team today. Our experts are here to help you choose the nitrogen generator solution that is right for you.










