Chart assist gas solutions improve the quality and efficiency of precision laser cutting processes.
Industrial laser cutting is the process of focusing a high intensity laser beam at a sheet of metal to produce a cut. However, when narrow tolerances are required, the beam alone cannot produce a clean cut. For that, a laser must use the help of an assist gas.
Assist gas, either nitrogen or oxygen, is used to exclude regular atmospheric air and blow away the molten material. Blasting this gas at high velocity and pressure blows away the metal that has been melted by the laser. It also helps take the heat away from the metal sheet.
With oxygen, the laser power is magnified and more heat is produced. This allows for faster cutting speeds. The disadvantage is that oxidation occurs on the cutting edge and more cleanup is needed if the metal is going to be further processed.
When lasers use nitrogen for cutting, the material is melted solely by the laser power and blown out of the cut by the energy of the nitrogen gas stream. Unlike cutting with oxygen, the melt-shear removal is the only active process since inert gases do not react with the molten metal and no additional heat is generated.
For both nitrogen and oxygen, an uninterrupted delivery of high quality gas is vital.
Chart Laser Assist Gas Solutions eliminate high pressure pumps, compressors, cylinder cradles and surge tanks and are available for operations of all sizes.
Small Volume Gas Users
Medium Volume Gas Users
Higher Volume Gas Users
Integrated system incorporating cryogenic storage vessel, vaporizer and advanced control technology for optimum high pressure gas flow.
Features twin liquid cylinders and automatic pressure switching. It operates by drawing liquid from a standard bulk tank into one of its cylinders and then boosts the liquid pressure with a high performance pressure builder. During this time, the other cylinder is delivering liquid to an external ambient vaporizer that feeds the application. Once this cylinder is empty it vents back to the bulk tank and to atmosphere, preparing itself for a refill. This two-cylinder, four-stroke (Fill, Pressure Build, Delivery, Vent) system works automatically to provide the application with a continuous supply of pure gas.
|Model||Flow - SCFH / Nm3/h||MAWP - psig / barg||MAOP - psig / barg||Dimensions - in / cm||Weight - lbs / kg|
|XPRO LIN/LAR-500 15K||15,000 / 425||500 / 34.5||450 / 31||
|1800 / 816.5|
|XPRO LOX-500 15K||15,000 / 425||500 / 34.5||450 / 31||
|1800 / 816.5|
|XPRO LIN/LAR-600 15K||15,000 / 425||600 / 41.4||550 / 38||
|1900 / 861.8|
The Trifecta® Gas Supply System electric pressure build (PB) vaporizer kit is designed to field retrofit existing Trifecta systems with a means to provide continuous flow rates to original specification, even in cold weather climates.
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