Nitrogen Generators for On-Site Nitrogen Production

A nitrogen generator separates nitrogen from compressed air and delivers it directly at the point of use. The two established technologies are Pressure Swing Adsorption (PSA) and hollow-fibre membrane systems. PSA — the technology used in NITROBERG® generators — passes compressed air through carbon molecular sieves that adsorb oxygen preferentially while letting nitrogen through; a depressurisation cycle then regenerates the sieve, and two adsorbers running in alternation give a continuous nitrogen output. PSA reaches purities up to 99.999 %, while membrane systems are typically limited to about 99 %. For the full technical detail, see PSA Nitrogen Generators.

The answer depends on the process. Food and beverage packaging and modified-atmosphere packaging typically run between 99 % and 99.5 %. Laser cutting of stainless steel and aluminium usually requires 99.9 % to 99.999 %, depending on material thickness and surface-quality demand. Electronics soldering, reflow and semiconductor manufacturing typically call for 99.999 %. Chemical and pharmaceutical inerting sits in the 99 % to 99.99 % range, depending on the substance and the regulatory framing. These are starting points — the right purity for a specific process is best confirmed with the engineering team during sizing.

For most continuous or high-volume applications, yes. The typical return on investment compared to liquid-gas supply is two to three years. The exact payback depends on the consumption profile, the current supply contract conditions and the local electricity cost. The on-site case becomes stronger when supply prices rise annually, when long-term tank contracts limit flexibility, or when supply chain disruptions threaten production continuity. We provide a TCO calculation tailored to your consumption data as part of the quote process.

Maintenance on a NITROBERG® generator is built around standard, off-the-shelf filter and consumable parts. There is no proprietary supplier you have to come back to, and no leverage held by a single source for the parts that wear over time. Service contracts cover scheduled maintenance and on-site visits where required — handled by the same engineering organisation that builds and certifies the generator. Specific maintenance intervals and the scope of a service contract are tailored to the application and confirmed during the quote process.

Every NITROBERG® generator comes with a three-year warranty as standard. In combination with a service contract, the warranty extends to up to five years. Service is delivered through a worldwide partner network with a direct line back to the headquarters in Germany — meaning you get a local point of contact, but the technical authority sits with the people who designed the system.

Yes. The OEM programme covers customer branding across the visible and operational layers of the system — custom RAL colour, your logo and manual, your software and HMI, and an application-specific configuration where the integration calls for it. The technology, certification depth and service network of NITROBERG® stay in place; what changes is the brand the end customer sees. Details and project scope on the OEM page.