Nitrogen gas is used around the laser tip for two purposes; 1) to maintain the proper weld temperature, and 2) to get oxygen and moisture out of the beam path. Nitrogen purity levels are typically 99% to 99.9%, but can vary depending on the exact requirements. Typical feed pressure for this laser process typically does not exceed 70 PSIG. An onsite nitrogen generator can save you hundreds of thousands of dollars over bulk N₂ gas.

Recommended Nitrogen Systems for Laser Welding

Nitrogen Cylinder Filling
Nitrogen cylinder filling stations can be easily incorporated into any nitrogen generator system. We offer a convenient and reliable way to fill your own cylinders for a fraction of the cost of bottled-gas purchase and delivery.

Nitrogen Membrane Generator
The nitrogen membrane generator is a complete turnkey system. It arrives at your location designed and built to your specifications and you put it online.

PSA Nitrogen Generator
On Site’s PSA nitrogen generator technology assures quick returns on your investment and stable year-to-year gas costs.

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Required Gas: Nitrogen
Purity Range: 95 – 99.999%