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Tool Talk Discussion Forum

cutting with propane

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jake

01-10-2004 18:05:22




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Could someone tell me the pros and cons of cutting with propane. Also what due I need to convert over from acetylene. Is is possible to cut with natural gas.(natural gas is readily available as opposed to propane. Thanks for all of your input. Jake




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Kirk

01-11-2004 14:04:02




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 Re: cutting with propane in reply to jake, 01-10-2004 18:05:22  
I work at a scarp yard and cut stell all day, Propane is alot cheaper than other gas's and last alot longer too but like was said takes longer to heat the steel and can be alittle tricker to light as well although you get good at it after time.

I use propane at home as well, use one of those 20lb bottles.

Kirk



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RusselAZ

01-11-2004 09:46:43




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 Re: cutting with propane in reply to jake, 01-10-2004 18:05:22  
Remember, you don't cut with the gas that feeds the flame. It is only there to get the metal up to a temp that the oxygen stream can oxidize the metal away. If you have a steady hand you can get a cut started and turn the gas off and keep cutting. I used to work with a guy that could split a 8 ft sheet of 1/2" plate that way. About 2 foot is all I ever made it!. My favorite now is a plasma cutter. cuts ANY metal leaving it cool.

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Jeff

01-10-2004 19:39:39




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 Re: cutting with propane in reply to jake, 01-10-2004 18:05:22  
Propane is substantially cheaper, but doesnt
cut as hot as acetylene.

If you want the major new trick setup,
you want petrox, which uses pump
gasoline, and cuts like a warm
knife through butter.

Downside is the initial 1k investment.

Or step into the year 2k and get a plasma
cutter. I dont even use my torch anylonger,
except for interrupted cutting.
Cleaner cuts, more precision, etc.

Dunno about natural gas...

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Jake

01-10-2004 23:17:08




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 Re: Re: cutting with propane in reply to Jeff, 01-10-2004 19:39:39  
Jeff, What more can you tell me about this petrox cutting system. I always wondered why pump gas was not used. I did a quick search and didn't come up with anything. I would appreciate any other information that you may have. Thanks Jake



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http://www.petrogen.com/

01-11-2004 07:07:19




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 Re: Re: Re: cutting with propane in reply to Jake, 01-10-2004 23:17:08  
http://www.petrogen.com/



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Alvin n Ms.

01-11-2004 20:27:34




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 Re: Re: Re: Re: cutting with propane in reply to http://www.petrogen.com/, 01-11-2004 07:07:19  
I would like to hear more about Petrogen, like what a setup would cost, and how hard are they to use. Can it be used just to heat metal?Thanks alvinnms



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Alvin n Ms.

01-10-2004 18:21:26




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 Re: cutting with propane in reply to jake, 01-10-2004 18:05:22  
Propane cuts very good, and a lot cheaper. Go to any welding supply and purchase a propane tip, and then you can rob the tank from your wifes barbecue grill, you are in business. The tip is a lot easier to clean. No more rent on acetylene bottles. Cut up to an inch thick with the small tip. alvinnms



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