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Introducing … Harris Products Group

IBS have recently become stockists for Harris Products Group and their range of Oxy/LPG cutting equipment.

Didn’t know you could use LPG?  Have been told otherwise? Let’s bust some myths!

Mythbusters

LPG does not burn as hot as acetylene.

While this in fact is true, the difference is negligible considering steel melts at between 1300 – 1500 C.
Oxy-Acetylene mix burns at 3,100 C.
Oxy-LPG mix burns at 2,800 C.
It really doesn’t matter anyway as the cutting process is a chemical reaction and the flame is only used to start it off and to facilitate the reaction. With practice, once a cut has started a skilled operator can turn off the fuel gas and complete a cut solely with oxygen.

LPG doesn’t have the heat of acetylene.

Wrong! Heat output is measured in BTU’s and Acetylene has an output of 1470 BTU while LPG’s output is 2498 BTU. In the welding industry the vast majority of preheating is done with Oxy / LPG . This is a fact. They don’t do it just because it’s cheaper but because the available heat from propane is much higher.

You can’t braze or silver solder with propane.

Some people refer to oxy welding steel as “brazing”. Brazing is actually done with a filler rod usually containing brass, tin or other alloys in varying percentages. Silver solder also comes in varying percentages of silver. Both of these can easily be done with LPG. Steel welding can’t be done with LPG but it has nothing to do with heat, it’s once again a chemical problem. Acetylene actually releases a shielding cone of CO2 when it’s burning, keeping the oxygen out of the weld puddle, which doesn’t happen with LPG. But who oxy welds anymore anyway? It’s almost a lost art.

So why would you want to switch from Acetylene to LPG for cutting?

Advantages

  • One 9kg LPG cylinder will supply the equivalent amount of fuel gas as you would get out of 2.5 “G” sized Acetylene cylinders.
  • LPG cylinders are less likely to explode if dropped from the back of a vehicle.
  • Easy to either re-fill or swap after hours or on the  weekend.
  • Far more portable and easier to handle.
  • Less clean-up and grinding required after cutting. LPG doesn’t put carbon into the steel and can be welded with minimal clean-up.
  • Operating pressures are lower than those using acetylene when run through the Harris torches.
  • NO CYLINDER RENTAL ON LPG CYLINDERS.

The bottom line is LPG provides 99% of the requirements of acetylene at a fraction of the cost, BUT, only if it’s run through equipment designed to use it.

Ask us about the HARRIS brand of cutting equipment.
NOT designed by a gas company but by a company dedicated to making precision equipment that WORKS.

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