Oxy Fuel Cutting Machines

Preheat flames are used to heat up the surface of the steel to approximately 1000�C (1800�F � bright red color) but below the metal's melting point. A jet of pure oxygen is then directed toward the heated area in a fine, high pressure stream. A vigorous exothermic chemical reaction takes place between the oxygen and metal forming an aluminum or iron oxide or rust. The pressure of the jet of oxygen blows away the slag or oxide forming a cavity. The preheat and oxygen stream are moved at constant speed to form a continuous cut.