Nitrogen Generation for Heat Treating

Kilns and furnaces used for heat treating may be under pressure; that classifies them as autoclaves that require a greater volume of N2 gas. Kilns and furnaces may also be used as a melting device. All of these processes can utilize a nitrogen generator to combat their one enemy – oxygen. O2 discolors the product, and can dangerously weaken it. Any metal over 600° F will oxidize in the presence of O2. The purity for most metal applications is at most 99.99%; pressure 30-100 PSIG. Most are purge and fill nitrogen applications that can be accommodated with larger or multiple N2 surge tanks instead of pressure-boosting compressors.

Recommended Nitrogen Systems for Heat Treating

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.


Required Gas: Nitrogen
Purity Range: 95 – 99.999%