Air Separation Units. Purpose-Built for Industrial Needs.
UIG designs, builds, and operates air separation units (ASUs) that deliver a reliable, cost-effective oxygen, nitrogen, and argon supply for demanding industrial applications. Whether you need on-site production for steelmaking, chemical processing, energy, or other high-consumption industries, our ASUs are engineered to meet your exact specifications and performance requirements.
Partner with Air Separation Experts
Please list each required gas (e.g., oxygen, nitrogen, argon) and include your average and peak flow rates, operating schedule (hours per day/week or 24/7), required delivery pressure, purity level, and units of measure.
Air Separation Units. Purpose-Built for Industrial Needs.
Our Air Separation Units (ASUs) are designed in-house and produce oxygen, nitrogen, and argon for a wide range of product flows, pressures and purities common across multiple industries.
Oxygen, Nitrogen, Argon - At Scale.
UIG personnel have experience delivering ASU's for under 100 tons of product per day to over 2,000, serving customers with demands small and large alike.
Energy Efficient
The largest cost for ASU operation is electricity! UIG leverages modern advancements in distillation, machine efficiency, insulation, and more to build plants with lower specific power.
Reliable Supply
UIG designs its ASUs with operations and maintenance in mind. Our flowsheets and physical layouts are carefully planned to reduce single points of failure and keep critical maintenance envelopes available.
Nitrogen Plants, Too
In addition to our multiproduct ASUs, UIG designs and builds simpler cryogenic plants that strictly produce nitrogen. A great answer for large nitrogen applications, UIG cryogenic nitrogen plants are built with the same principles as our ASUs.
Industry-Specific Gas Solutions.
One Proven Partner.
From steel and chemicals to energy and glass, our cryogenic air separation systems are built to meet the unique gas demands of your industry.
Gas Supply, Your Way
UIG gives you the freedom to choose how you source your gas, whether you want a fully managed solution or complete control over your production. Our flexible approach ensures you get the reliability, efficiency, and cost structure that works best for you.
Turnkey Options
We can handle everything—from design and construction to operation and maintenance—so you get a hassle-free gas supply.
DIY Gas Supply
Take full ownership of your plant and production while leveraging our expertise in design, equipment, and setup for a customized solution.
About UIG
Universal Industrial Gases is a wholly owned subsidiary of Nucor Corporation, America’s largest, most sustainable steel and steel products company. We supply industrial gas and gas products to the industrial world. For manufacturers and gas distributors in North America, we offer a more flexible and transparent way to buy and source critical nitrogen, oxygen, argon, and other gases—all backed by exceptional reliability, engineering, and service. It’s gas the way you want it: Pure, transparent and predictable.
Gas You Can Work With™
The traditional approach to industrial gas is locking you into a rigid solution that prioritizes the supplier’s bottom line growth over yours. UIG is different. Discover a better way to work with industrial gas today.
Steel
Our ASUs deliver high-purity oxygen and nitrogen, engineered for seamless integration into steel production.
Energy
We design ASUs that support gasification, LNG, and power generation with reliable gas supply.
Glass
Our air separation plants optimize oxygen supply for glass manufacturing, improving efficiency and quality.
Metals
From refining to heat treatment, our ASUs provide the gases needed for high-performance metal production.
Mining and Minerals
We build ASUs to support metal extraction and mineral processing with consistent oxygen delivery.
Chemicals
Custom-built ASUs provide the industrial gases essential for efficient chemical processing and production.
