Nitrogen Generators for Laser Cutting

Nitrogen is an inert assist gas, so it leaves a bright, oxide-free edge on stainless steel, aluminum, and aluminum alloys. The cut edge is ready for welding or painting straight off the laser. Oxygen leaves an oxide layer that requires pickling, grinding, or other secondary finishing before the next operation. Oxygen is cheaper but only acceptable when the cut edge will be welded over or coated. Nitrogen is required for titanium and reactive alloys.

Most laser cutting operations specify nitrogen purity between 99.9% and 99.999%. Stainless steel and aluminum precision work typically uses 99.999%. Thicker mild steel where the edge tolerance is wider can run on 99.9%. We size the system to your purity setpoint and confirm the spec against your laser manufacturer's recommendation before quoting.

Most fiber lasers run between 150 and 400 PSIG depending on plate thickness and material. Cutting 1/4 inch and thicker stainless or aluminum typically demands 300 to 400 PSIG. Some thick-plate cutting calls for 500 PSIG or higher. Our standard PSA generators output up to 150 PSIG. For higher pressure, we add a booster package sized to the duty cycle of your laser. Output to 500 PSIG is standard on our high-pressure builds.

Consumption varies widely by material, thickness, nozzle size, and cut hours per week. Many shops are surprised by both their peak demand and their average. We rent you a high-pressure flow meter at no charge to measure your actual usage in real time. The meter installs inline between your current nitrogen supply and the laser, with a cellular data logger so you can view flow and pressure on our dedicated server. Once we have a few weeks of data, we size the system to your real demand schedule, not a guess.

Most laser shops recover the full investment in 12 to 14 months, including the booster and feed-air compressor. High-volume shops cutting stainless and aluminum at production speed pay back faster because the gap between delivered nitrogen and on-site nitrogen is widest at high consumption. Generated nitrogen runs about $0.05 to $0.12 per hundred cubic feet, roughly one tenth the cost of delivered bulk nitrogen.

Yes. We size systems from a single fiber laser to a multi-laser production line. For job shops with intermittent or off-peak cutting, we also build off-peak generation systems that fill a high-pressure cylinder bank overnight and deliver nitrogen at full pressure during cutting hours from a smaller generator. This is often the lowest-capital approach for small shops with one or two lasers.

Yes. Our high-pressure nitrogen systems integrate with every major laser brand, including Trumpf, Bystronic, Amada, IPG, Mazak, LVD, Prima Power, and Mitsubishi. We work from each laser manufacturer's gas specification and confirm pressure, purity, and flow against your specific machine before quoting. The generator side is brand-agnostic; we size and configure to match your equipment.