Whether you're running a single production line or managing a large-scale operation, on-site nitrogen offers clear advantages across the board:

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1. Lower operational cost
Say goodbye to recurring delivery fees, rental contracts, and unpredictable pricing. With an on-site nitrogen generator, you invest once and save continuously, often seeing a quick return on investment.
 

2. No supply interruptions
Avoid the risks of late deliveries, stockouts, or supplier delays. Generating nitrogen on site means you'll never run short—even during peak demand or supply chain disruptions.

3. High purity, on demand
Modern systems allow precise control over nitrogen purity levels. Whether you need 95% for basic applications or 99.999% for sensitive processes, you can produce it on demand.

4. Reduced waste and emissions
Unlike cylinders or bulk tanks that may vent unused gas, on-site systems produce only what’s needed. Fewer deliveries also mean lower CO₂ emissions and less handling waste.

5. Improved safety
By eliminating high-pressure cylinder storage and transport, on-site generation reduces health and safety risks for your team—no more manual handling or cylinder swaps.

The ability to produce nitrogen on demand, at the right purity and pressure, is invaluable across a wide range of industries. Whether it’s used to improve product quality, protect materials, or streamline production, on-site nitrogen generation offers practical benefits tailored to each application.

3D printing
In additive manufacturing, nitrogen is used to create inert environments that prevent oxidation during printing—especially with reactive metals like titanium and aluminium. On-site nitrogen generation offers consistent gas quality, supporting smoother surface finishes, stronger end parts, and greater process control for high-performance prints.

Laser cutting and metal fabrication
In laser cutting, nitrogen is used as an assist gas to prevent oxidation and achieve clean, precise cuts—especially on stainless steel and aluminium. On-site generation guarantees a consistent, uninterrupted flow of high-purity nitrogen, avoiding production stops caused by empty cylinders or late deliveries.

Breweries and beer production
Nitrogen plays a key role in modern brewing—not only for purging tanks and blanketing during storage, but also in packaging, where it helps protect flavour and carbonation. By generating nitrogen on site, breweries can eliminate reliance on deliveries and produce consistent, food-grade gas for every stage of production.

Pharmaceuticals and laboratories
In pharma and laboratory settings, nitrogen plays a role in packaging, blanketing, drying, and analytical instruments. On-site generation ensures a constant, reliable supply that meets strict quality requirements while reducing handling and delivery-related safety risks.

Winemaking
Winemakers use nitrogen for blanketing during fermentation, racking, bottling, and storage—essential steps in preserving aroma and preventing oxidation. On-site nitrogen generation ensures a continuous, gentle supply of gas to protect the wine's integrity while reducing cost and reliance on external suppliers.

Spray painting and surface finishing
Nitrogen is increasingly used in spray painting applications to improve atomisation and coating consistency. It helps achieve a more uniform spray pattern, reduces overspray, and improves transfer efficiency. On-site generation offers a steady supply of clean, dry nitrogen—ideal for high-end finishes in automotive, aerospace, and industrial coatings.

If you're considering on-site nitrogen generation, it's helpful to understand the two main technologies available: pressure swing adsorption (PSA) and membrane separation. Each comes with its own strengths, depending on your required purity, available space, and overall usage.

Pressure swing adsorption (PSA)
PSA generators use a pair of pressure vessels filled with carbon molecular sieves to separate nitrogen from oxygen. While one vessel is actively filtering nitrogen, the other regenerates. This method allows for the production of high-purity nitrogen—up to 99.999%, making it well suited for applications requiring extremely low oxygen content, such as laser cutting or electronics.

That said, PSA systems work most efficiently with clean, dry intake air, which often calls for additional air treatment equipment. In return, they offer lower running costs thanks to more efficient use of compressed air.

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Membrane technology
Membrane nitrogen generators rely on hollow fibre membranes that allow gases to pass through at different rates. Nitrogen moves more slowly than oxygen and water vapour, allowing it to be separated and collected. These systems are compact, quiet, and can tolerate some moisture, making them ideal for limited-space installations or outdoor environments.

Although membrane systems typically deliver lower nitrogen purity (up to around 99.5%), they’re easier to scale, need less maintenance, and provide a continuous flow without requiring external storage tanks.

Which should you choose?
If your operation demands high-purity nitrogen and you're willing to invest in the necessary air preparation, a PSA system is likely the better choice. However, if you're looking for a flexible, modular setup and your purity requirements are more modest, membrane technology may offer the best balance of simplicity and performance.

Top 5 Benefits of Onsite Nitrogen Generators

For businesses that rely heavily on nitrogen, the decision between nitrogen cylinders or an onsite nitrogen generator is critical. While the upfront cost of a nitrogen generation system is larger, the ROI is often within 1-2 years, and there are many benefits of nitrogen generators that cylinder or bottled nitrogen simply cannot compete with. By implementing onsite nitrogen generation technology, you ensure that your operations sustain uninterrupted productivity with high-quality nitrogen solutions. This article reviews why an onsite nitrogen generator may be the best option for your business.

What is a Nitrogen Generator? And How Does a Nitrogen Generator Work?

A nitrogen generator produces nitrogen on demand from compressed air using either Pressure Swing Adsorption (PSA) or membrane technology.

·         PSA: This method cycles compressed air through adsorbent beds that selectively capture oxygen, allowing nitrogen to pass through. PSA is ideal for applications requiring high-purity nitrogen.

·         Membrane: This method uses membranes to separate nitrogen from compressed air, where oxygen and other gases permeate through the membrane walls, leaving concentrated nitrogen. Membrane systems are better suited for high-volume applications where extremely high purity is not essential.

What Are the Benefits of an Onsite Nitrogen Generator?

Here are our top five reasons why installing an onsite nitrogen generator offers significant advantages over traditional nitrogen cylinders:

1.      Supply Control and Reliability: Generating nitrogen onsite provides complete control over your nitrogen supply. You are no longer subject to supply chain disruptions, such as delivery delays or price increases. This reliability supports consistent production levels and helps prevent operational downtime.

2.      Cost-Savings: Onsite nitrogen generation significantly reduces the cost per cubic meter of nitrogen compared to cylinder supply. By avoiding the expenses associated with cylinder rentals, deliveries, and handling fees, businesses can achieve substantial savings. Our clients typically experience a reduction in their nitrogen supply costs by up to 80%.

3.      Rapid Return on Investment: The investment in an onsite nitrogen generator often pays off within one to two years, thanks to considerable savings on ongoing nitrogen supply costs and reduced operational expenses.

4.      Customised Purity and Volume Levels: Our nitrogen generators allow you to adjust the purity and volume levels according to your specific needs. Whether your industry requires ultra-high purity or variying volume demands, having control over these settings ensures optimal performance and cost-efficiency.

5.      Enhanced Safety: Nitrogen generators improve workplace safteySince nitrogen is produced at lower pressures and stored safely onsite at safe levels, eliminites the risks associated with handling high-pressure nitrogen cylinders.

Onsite nitrogen generators are an essential asset for industries that need a steady supply of nitrogen. From manufacturing to food and beverage sectors, these systems provide enhanced control over nitrogen purity and availability, streamlining processes and boosting productivity.

About Mobile Compressed Air

Located in Adelaide, Mobile Compressed Air offers cutting-edge onsite nitrogen generation solutions tailored to meet the unique needs of the South Australian industry. From compact units to large-scale installations, our nitrogen generators ensure an efficient and reliable nitrogen supply, supporting the diverse requirements of our clients. Contact us today!

Contact us to discuss your requirements of Nitrogen Roots Blower. Our experienced sales team can help you identify the options that best suit your needs.