As recently as 40 years ago, the process of fabricating ductwork was incredibly time-consuming. Skilled tradesman known as “tin knockers” individually laid out each galvanized component using templates made of plywood, metal, or cardboard. They’d take a template and sketch out the location of parts on the raw steel before wielding hand and electric tin snips to cut the parts out.
The life and performance of an air plasma torch’s consumable parts can be affected by a few different factors. This article discusses the effect on consumable parts life and cut quality that can be caused by contaminants in the compressed air supply.
