IndustryProcessing Industry > Laser metal cutting

Laser metal cutting

The cutting of metals with the help of a laser has replaced traditional mechanical methods and offers clear advantages. For example, the processes involved are shortened and the cut surfaces are not contaminated by the material of the cutting dies. However, the laser environment must be free from ambient air if an optimum cut is to be achieved. To ensure that this is the case, nitrogen is used. This nitrogen is preferably produced on site using the pressure swing adsorption (PSA) process or membranes. This helps to ensure that companies are not reliant on gas suppliers. After the PSA process has been carried out, Sauer compressors are used to boost the nitrogen to a pressure of 40 or 300 bar.

The higher pressure of 300 bar offers particular advantages as it enables large amounts of gas which are normally sufficient for a number of days to be stored quickly. Not only do users benefit from greater operational reliability, they do not need to operate their high-pressure compressor for such long periods and can therefore take advantage of the times where cheaper energy tariffs apply. In addition, a great deal less extra equipment is required upstream when a pressure of 300 bar is used.


What are Sauer Compressors used for?
  • Creating an inert atmosphere surrounding the laser
Who are Sauer Compressors’ customers?
  • Metal treatment companies
  • Manufacturers of machine tools for laser cutting
  • Manufacturers of nitrogen generators/nitrogen membranes
Which Sauer product ranges are used?

Product ranges: MISTRAL, TORNADO, HURRICANE
Variants: BasBooster, ComBooster
Volumetric flow: 10–100 m³/hr
Pressure range: 20–300 bar (g)
Medium: Nitrogen

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