CRYOGEN SERIES ON-DEMAND LIQUID NITROGEN GENERATORS Meeting Your Cryogenic Needs, Safely and Conveniently MAKE YOUR OWN LIQUID NITROGEN, ANYWHERE, ANYTIME! The Expert in Liquid Nitrogen Generator Solutions WWW.F-DGS.COM

WHO WE ARE Founded in 2006, F-DGSi is a dynamic, family-owned French company specialized in manufacturing gas and liquid generators. Our Headquarters are located near Paris (France), where all our products are designed and manufactured 100% in-house by our own Research & Development centre. This ensures the reliability and quality of our products. Our Commitment At F-DGSi, we put customer satisfaction first. With a solid understanding of laboratory needs, we focus on delivering innovative, high quality solutions and a responsive support. Our technical engineering team and trained global distributor...

WHAT WE DO With the know-how of our French engineering teams, we provide laboratories around the world with a safer, more convenient and sustainable alternative to gas cylinders. Our generators produce your required supply for Nitrogen, Hydrogen or Zero air on-demand with a constant purity. Located closely to your analytical instrument eliminating the need for long gas lines in your lab or regular changing of gas cylinders. F-DGSi has a wide range of gas generators products to meet the requirements of all your analytical instruments. Our high quality products, combined with French technology...

CRYOGEN SERIES Reliable, safe and plug-and-play supply for your cryogenic needs Liquid nitrogen finds its applications across a spectrum of industries, from medical and scientific research to metal treatment and dermatology where ultra-low temperatures are critical. However, handling dewars of liquid Nitrogen can be challenging, with safety risks, logistical hassles, and purity concerns. The solution? On-site, on-demand liquid Nitrogen production. The CRYOGEN series developed by F-DGSi allows you to generate your own liquid Nitrogen—anytime, anywhere! Just connect it to a power supply, press...

KEY FEATURES Why choose an F-DGSi Liquid Nitrogen Generator? On-Demand Production Generate liquid Nitrogen on-demand from ambient air. Economical Performance On-site generation is cost-effective and delivers a fast return on investment. Safe Operation Convenience Eliminate the inconvenience from delivery delays and reliance on external suppliers. Flexible Output Designed with a robust cabinet, certified built-in dewar, safety valves, and advanced electronics for secure use. Easy to operate and dispense Control via intelligent, intuitive touch screen to start/ stop, monitor real-time process,...

ON-DEMAND LIQUID NITROGEN GENERATION The liquid Nitrogen generation process of the CRYOGEN series starts with producing Nitrogen gas from ambient air, cooling and liquefaction, and ends with dispensing liquid Nitrogen directly from a built-in dewar. The most reliable, efficient and proven technology available At the core of the CRYOGEN Liquid Nitrogen generator lies the GiffordMcMahon technique, which uses a coldhead design to compress and expand Helium, achieving low temperature cooling of the gaseous Nitrogen. A Cryo-Refrigerator mounted on the built-in dewar converts the generated gaseous...

Technology Pressure Swing Adsorption (PSA) Nitrogen gas generators using Pressure Swing Adsorption (PSA) rely on Carbon Molecular Sieve (CMS) to produce high-purity Nitrogen from compressed air. CMS adsorbs smaller molecules like Oxygen and moisture, while Nitrogen passes through unadsorbed. This process is used in our liquid Nitrogen generators to produce high-purity Nitrogen gas efficiently. The process has two stages: adsorption, where O₂, H₂O, and CO₂ are captured by CMS while Nitrogen is collected, and regeneration, where pressure is released to vent the captured molecules, resetting the...

The helium compressor can be cooled using two primary methods: water cooling or air cooling. Cryogen production rate at + 25°C and < 2000 meters altitude at 50Hz. * boost mode up to 4 bar to increase liquid N2 production.

Control CRYOGEN via user-friendly touchscreen to start, monitor and set all parameters The in-house developed software ensures full control for easy upgrades. It offers a user-friendly interface displaying all vital parameters (N2flow rate, pressure, purity, LN2 production %, air inlet pressure, operating hours, date, time) and system status (operation, service alarm, economy, shutdown mode). The difference lies in the method used to dissipate the heat generated during the liquefaction process. A water-cooled system uses a water circuit to absorb heat through a heat exchanger. The heated water...

OPTIONAL ACCESSORIES The Cabinet generators design have a built-in oil-free air compressor, our own Pressure Swing Adsorption (PSA) Nitrogen gas generator, which goes through a medical filter and is liquefied by a cryocooler integrated with a storage dewar. The full colour HMI touch screen user interface allows automated production with customisable options. We offer different options, which are listed below: Cryogenic Safety Equipment Personal safety is crucial when working with cryogenic liquids. F-DGSi offers a range of personal protective equipments, including cryogenic gloves, visors, and...

Oxygen depletion alarm The alarm monitors continuously Oxygen levels in a defined space. It can control third party systems and provide audible and visual alerts in case of an incident. If the Oxygen level in the air drops below a preset value, the alarm warns occupants to ensure safety. Water chiller Recirculating water chillers ensure accurate and constant cooling conditions of instruments (for Helium compressor water cooled version). Emergency stop button Allows the generator to be immediately stopped. It plays a crucial role in enabling a quick response to unexpected situations, while reducing...

INSTALLATION AT CUSTOMER SITES The CRYOGEN.65 filling an external dewar with liquid Nitrogen. The customer Institut Pasteur du Cambodge fills another dewar safely. The customer fills a small aluminum dewar to transport it elsewhere.