In laser cutting the laser beam melts the material and high-pressure nitrogen forces the metal quickly to harden. As nitrogen has a shielding effect, the cutting area is protected against 'bluing' and oxidation.
Using high-pressure nitrogen for laser cutting of steel and metal has many benefits over alternatives such as oxygen:
Nitrogen protects the metal from corrosion
- no oxidation of the steel occurs.
- No additional heat is generated.
- A high quality (clean-cut) edge is achieved.
- The clean cut makes it easy to weld and paint or powder-coat the metal.
- Paint will not fall off the edges.
Case stories

Jun 2018
LaserGas generator running in Saudi arabia
King Abdullah University of Science and Technology (KAUST) one of the best technological institutions in the world has installed Oxywise's LaserGas Generator.
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May 2018
1st Oxywise laser-cutting installation in UK
Together with our approved partners, we have for the first time supplied the UK market a nitrogen generating system for laser cutting industry.
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Mar 2018
LaserGas generator built in a container running in Portugal
Oxywise’s containerised state of the art lasergas generator met the customer’s needs by producing over 7000 m3 nitrogen per unit per month, reducing cost, producing clean nitrogen, increasing metal cutting speed, boosting productivity and reducing carbon footprint.
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Jul 2015
LaserGas generator for laser cutting machine, Slovakia
This laser cutting facility is only 25 minutes drive from our factory. Installed LaserGas system considerably reduces costs of nitrogen with efficiency about 0.8kWh/kg or 1.1kWh/Nm3.
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Jun 2014
Oxywise LaserGas system for Trumpf laser cutting machine
Metal sheets service center located in Czech republic, has decided to move from traditional gas supply to our on-site nitrogen generation.
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Jul 2012
Bystronic laser cutting with assist gas produced by nitrogen generator
The key to being competitive in the laser cutting industry is productivity - getting more finished parts off of the machine per day and at a lower production costs.
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