DENSITY: The use of liquid fuels such as gasoline and diesel provide a flame with FOUR times the density of fuels like Acetylene or Propane thereby providing a significantly increased burn time over greater distance than the flame a compressed gas can. The longer burn time over a greater distance (for both the primary and secondary flame) results in a much greater preheat flame distance allowing operators more flexibility and greater coupling distances. The high density flame easily bridges air gaps cutting thru and across voids.
OXIDATION: When cutting steel, it is the steel itself which acts as the primary fuel source. The preheat flame is simply the catalyst to initiate combustion. A higher level of oxidation means more of the steel burns and is converted into BTUs. DAVCO systems oxidize 99.9% of the steel thereby unlocking more energy to sustain difficult cuts. Acetylene oxidizes 70% of the steel wasting 30% of the available energy and leaving a puddle of molten steel.