Plasma cutters are available in different shapes and sizes and it is really confusing to select a perfect model. Before buying the plasma cutter you must have a clear idea about its usage and your needs.

Generally plasma cutters cut anything including aluminum, copper, stainless steel and other steels. For determining the thickness of the piece you are cutting, you must know the type of the metal being used. For cutting a quarter inch metal, you would need a plasma cutter that would cut cleanly, quickly and efficiently. Once you know about the type and thickness of the metal, you must decide upon the speed in which the cutting should be done. A bigger machine is required for faster cutting of metal. Here you have to consult an expert before going for a big machine since the machine would be tough to handle.

A high power plasma cutting equipment would require high voltage. So if you are buying a high power cutter, you should enquire about the voltage required and also about the availability of such high voltage in the work environment. If you are opting for a portable plasma cutter, then size and weight should be the prime concern. Plasma cutters which can be put inside a box in your truck to be carried to the work site are available in the market.

Plasma cutters are commonly operated using inert gas (often compressed air). Before buying the compressed air, you must know the Cubic foot per minute i.e. CFM of the compressor and it has to be at correct levels for the accurate operating of plasma cutters. Information on the proper gas supply could be sought by knowing the pounds per square inch (PSI) that the plasma cutter requires to run.

The most important thing before operating a cutter is that you must strictly follow the plasma cutter safety guidelines. Operating a plasma cutter is very much different than regular welding. So it would be better to take all the needed precautions.