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Gas Cutting & Heating

Gas cutting and heating are processes which mix a fuel gas and oxygen to create a high temperature flame, the most common fuel gases being propane and acetylene.

When cutting, the metal is pre-heated until it is made red hot, a trigger is then used to add an additional stream of oxygen which forces the oxidised metal to flow away from the cutting zone.

Heating the metal usually requires a wider, less intense flame; different nozzles are attached to create a wider cone for bending metal. For smaller areas like hard to remove nuts and bolts, welding nozzles are often used for a finer heating flame.

Cutting Gas Selector

Gas	Preheat Time	Cutting Speed	Ease of Handling	Oxygen Cost	Fuel Gas Cost
Acetylene	■ ■ ■	■ ■ ■	■	■ ■ ■	■
Propane	■	■ ■	■ ■ ■	■	■ ■ ■