A plasma cutting machine typically consists of a power source, an air compressor, a torch, and a cutting table or guide. The power source provides the energy to create the plasma arc, which is used to cut through metal. The air compressor supplies compressed air, which is used to blow the molten metal away from the cutting area and to cool the torch. The torch is the component that directs the plasma arc onto the metal being cut. The cutting table or guide is used to support the metal and guide the torch during the cutting process. Some plasma cutting machine also have additional features like CNC control, Water table, and automatic height control.