Cutting metal with Gasoline?

[East Coast Ghost]

Has any body seen this set up befor? Could be a good Trail tool.

http://www.petrogen.com/welcome.html

What do you all think?
sorry if repost

ECG

[Nowhere]

Fire depts use those.

The look cool, but are rather expensive.

I think I've seen them on ebay for ~~ 500 ish..

[Travis Waldher]

Although, it says that 2.5 gallons of gas can cut the same amount of material as a 250cuft cylinder of acetylene would.

There could be signifigant cost savings there.

[85f150dsel]

I have one of those small old ones powered by gas. Its all one piece,with the canister of gas right below the flame, that you have to preheat the nozzle then the flame comes, sounds like a jet car preheating their engine.

As i am to cheap to go buy a rosebud tip, this little thing heatsup awesome for its size and doesn't burn much for fuel

edit: one of these is what i meant...http://gallerydriver.com/Art/Blowtorch,%202005_th.jpg


i can't imagine how much shit this was spitting back out at the operator http://www.petrogen.com/punch%20hole-web.jpg

after seeing that shit on the link that is badass, how come they aren't more popular?

[bigdreamin]

Any idea on consumable life, seems as if its burnnign hotter it will wear out consumables quicker.

[Travis Waldher]

It said it's consumables, such as tips, last longer than oxy-acet tips.

Of course, so says the company trying to sell the product.

[85f150dsel]

YEa they are saying the tips last longers because they aren't running as hot with the vlume of air that is moving through them. They have a picture of some chick holding onto the torch head, stating how cool it is also

[bigdreamin]

YEa they are saying the tips last longers because they aren't running as hot with the vlume of air that is moving through them. They have a picture of some chick holding onto the torch head, stating how cool it is also
That makes no sense, in order to cut 4" worth of plate steel you need eiteher hotter temps. or higer volume or both, increasing either will wear out consumables faster. Also it was said earlier it goes through less fuel than actelene, I assumed this was because it burned hotter, but apprently they say it doesn't burn as hot. How the hell does this thing cut than? :confused:

[Travis Waldher]

http://www.petrogen.com/hold%20torch.jpg

I'm Assuming because it's using liquid gasoline, rather than a conventional gas such as acetylene?

EDIT: Duh, right next to that picture:

"Tips and torch head run cooler than any other torch. The gasoline evaporates in the tip, which creates a refrigeration effect. The bigger the tip, the cooler the head and tip will run because more gasoline is evaporating. Cooler tips and torch head reduce hazard to the operator"

http://www.petrogen.com/sparks.jpg

[85f150dsel]

also it was showing you could keep the torch head further away from the metal. Once picture showed it a few inches away, which could help with reducing wear to the head.

[AthlonAJ]

There's gotta be a downside to all of this. Been searching for a bit and haven't found any yet though.

[Travis Waldher]

I think cost of the setup is a downside - if the ~$500 ebay price is accurate.

[bigdreamin]

The last pic Travis posted doesn't make much sense unless I see it wrong. That lady has her hand in the sparks, those still have to be hot, its molten (or very close to) steel for crying out loud.

[DHONDAGOD]

looks to answer all your questions here


http://www.petrogen.com/petadvantages.html

anyone on here have, or have used/seen one of these?


chris:cool2:

[Pavemen]

remember that pic and link here about the guy torching 10-12' dies? i thought it was about him using acetelyne to do it, why wouldnt they use this style of cutting for that if its so much more efficient?

[MT4Runner]

I just called. The PCS (Portable Cutting System) runs $1,750. :eek:

[Bolt Thrower]

I think it is listed on that site that it isn't much good for that heavy cutting (multiple feet of steel) I think I read 14 inches as the maximum cut.

[DrMaserati]

If it's so great, why don't you see them in professional welding shops?

I think that says it all.

[Travis Waldher]

If it's so great, why don't you see them in professional welding shops?

I think that says it all.

Maybe because a half decent torch setup (including regulators) will run about $250 and that kit is 7 times that expensive.

[ZJim]

When I first opened this thread I thought you were talking about using gasoline as a cutting oil :laughing:


Time for another cup of coffee!



If you're interested in alternative cutting gasses, look at propane as well.

[DHONDAGOD]

If you're interested in alternative cutting gasses, look at propane as well.


x2 propane dosent leave the slag that acetylene does.. and its cheaper. you just have to change the tip of the torch to the propane tip... (avail at your welding supplier)

chris:cool2:

[bigdreamin]

x2 propane dosent leave the slag that acetylene does.. and its cheaper. you just have to change the tip of the torch to the propane tip... (avail at your welding supplier)

chris:cool2:
Down side to propane is that it doesn't burn near as hot, but that only matters if yoru impatient like me. :D

[Pat98TJ]

The military uses those..I saw it on TV.

[p575]

If it's so great, why don't you see them in professional welding shops?

I think that says it all.




now thats great logic:shaking:

[MigMiester]

That makes no sense, in order to cut 4" worth of plate steel you need eiteher hotter temps. or higer volume or both, increasing either will wear out consumables faster. Also it was said earlier it goes through less fuel than actelene, I assumed this was because it burned hotter, but apprently they say it doesn't burn as hot. How the hell does this thing cut than? :confused:


Oxidation, just like a regular O/A setup. The heat is not what does the cutting, its the oxidation process. If it was only heat than you would be ble to cut Al with a O/A torch, but you can't.

[Jam Master Jay]

Down side to propane is that it doesn't burn near as hot, but that only matters if yoru impatient like me. :D

x2
After using both acetelyne and propane, I'll never use propane again.

[e cliff]

Oxidation, just like a regular O/A setup. The heat is not what does the cutting, its the oxidation process. If it was only heat than you would be ble to cut Al with a O/A torch, but you can't.


i would disagree heat is what keeps the process started and going, and you can cut aluminum with a o/a set up but it does not cut that clean and you cant see the temp change into a different color

cliff

[HalfFastFord]

i would disagree heat is what keeps the process started and going, and you can cut aluminum with a o/a set up but it does not cut that clean and you cant see the temp change into a different color

cliff

Acetylene is only needed to get it going. You can actually turn off the acetylene after the cut is started and finish with just oxygen. Cutting is an oxidation process.

[bigdreamin]

Are we sure oxidation is the word we want to use here? I think oxidation I think rust, loss of an electron. Are we sure we don't mean redox? I dunno maybe we can get a chemist to give us his opinion.
:confused:

[Bolt Thrower]

http://en.wikipedia.org/wiki/Oxidation

If anyone really cares.

[MigMiester]

Are we sure oxidation is the word we want to use here? I think oxidation I think rust, loss of an electron. Are we sure we don't mean redox? I dunno maybe we can get a chemist to give us his opinion.
:confused:


Yes, it is an oxidation process. That is why you can't cut SS, brass, etc... either with O/A - they don't oxidize (rust). You don't have to be a chemist to know this. I learned this in H.S. metal shop 20 years ago.