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bad booger
01-26-2006, 05:31 PM
anyone using this setup for fab work? The compnay I used to work for just switched over to this. You can use the same regulators and torches you just have to use a different tip. The cuts are supposed to be super clean. The propylene bottle is supposed to last 3x as long so you use a real small bottle and a real big O2 bottle. I have heard good things from them about it but they are heavy equipment repairmen and mostly cut thick stuff.

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critterkiller
01-26-2006, 05:56 PM
Propane?

bad booger
01-26-2006, 06:29 PM
no, propylene. I don't know much about it. Have run a search on yahoo that had some hits but haven't had time to read them

Haggar
01-26-2006, 06:29 PM
propylene is used to make plastic.. never heard of it for welding..

Propane?

Methyl Acetylene Propadiene? (MAPP)

Haggar
01-26-2006, 06:33 PM
I see it out there now, with Google.. I guess they used it for some Olympic torches.. hmmm...

Brad
01-26-2006, 10:10 PM
We use it at work. It takes some getting used to compared to acetylene. I wouldnt know about lasting cuz we got about 10 huge cylinders outside hooked up to a manifold system.

bad booger
01-27-2006, 08:42 AM
We use it at work. It takes some getting used to compared to acetylene. I wouldnt know about lasting cuz we got about 10 huge cylinders outside hooked up to a manifold system.


Do you like it? Would you recommend switching?
I'm out of acetylene and thought about making a change but if it not a improvement then I don't see the point.

andyr354
01-27-2006, 10:47 AM
You will use alot more O2. We used to use it on the farm. When we were cutting up lot fence and work like that using the torch allot we went through K sized O2 bottles pretty quickly. Much more quickly than when using Acetelyne.

Brad
01-27-2006, 09:43 PM
Do you like it? Would you recommend switching?
I'm out of acetylene and thought about making a change but if it not a improvement then I don't see the point.

I dont use it much. The fitters do more than anyone. The few times I have used it, I havent had good results since Im not used to it. Im used to acetylene and propylene is completely different. I would try it if the costs are about the same. Otherwise I wouldnt bother.

bad booger
01-28-2006, 12:23 PM
You will use alot more O2. .... Much more quickly than when using Acetelyne.


Anyone else find this to be true?

singham
01-28-2006, 10:27 PM
One of my employees does large scale steal salvage work. They are very in tune with the cheapest methods of cutting and they swear by the propane/oxygen combo. Over a 1 month period their fuel savings were cut by 60% when they made the switch. (They are cutting 1"+ plus plate regularly)

In comparing cuts between the two types, the Acetylene cuts appeared cleaner to me...but I am no expert.

Cheers,

Scott

bad booger
01-29-2006, 11:34 AM
One of my employees does large scale steal salvage work. They are very in tune with the cheapest methods of cutting and they swear by the propane/oxygen combo. Over a 1 month period their fuel savings were cut by 60% when they made the switch. (They are cutting 1"+ plus plate regularly)

In comparing cuts between the two types, the Acetylene cuts appeared cleaner to me...but I am no expert.

Cheers,

Scott


Thanks, but I'm trying to find out about propylene not propane though I know it is good for demo work.

Brad
01-29-2006, 07:48 PM
try calling up a welding supply company and see if they can give you the scoop. As I said before, I have no concept of usage since we have huge tanks outside and everythings on a manifold system.

cybergeek23851
01-29-2006, 09:25 PM
When I go in tommorow, I might have the info in a book that the students use in class. I was off of work last week, so I wasn't in the shop/lab.

basketcasejeep
02-02-2006, 11:46 AM
The tech school I learned to weld at switched from Acetylene to Propylene shortly after I finished. I've been back a few times to tinker and have used it. I didn't like it at first- its a little harder to start and adjust- but once you get used to it, its ok. I think the cuts were cleaner with the Propylene. I don't know if they're using more oxygen now or not- I'll ask next time I'm there. They swapped due to cost for the most part.

When I get my own setup I'll probably use propane- we have a bunch of them around for heating/grilling anyway. :D

Edit: The only thing you can't do with Propylene that you can with Acetylene- is weld. :shrug: Who welds with O/A these days? WHY? I can see some use for it, but its much easier to use MIG/TIG...

Mobydick
02-02-2006, 02:02 PM
Edit: The only thing you can't do with Propylene that you can with Acetylene- is weld. :shrug: Who welds with O/A these days? WHY? I can see some use for it, but its much easier to use MIG/TIG...

Funny, I alway thought of TIG welding as being closer to Gas welding in terms of technique.

redrangie
02-02-2006, 02:17 PM
Who welds with O/A these days? WHY? I can see some use for it, but its much easier to use MIG/TIG...

I dissagree. I usually keep a number 2 cutting tip, and I can use one machine to cut, form, braze and weld, without changing any setting except pressure at the torch. hellava lot more convenient.

but then, I am a lazy sob
j

basketcasejeep
02-02-2006, 04:00 PM
Ok, redrangie, you're an exception. :flipoff2: I can O/A weld, but don't see much purpose in it for most every thing 'I' do. Whatever works for ya, :D

Mobydick, the technique is similar to a degree, but O/A can be harder because you don't have near the heat control- plus heat distortion can be a bigger factor.

Bottom line I guess is- are you planning on using the torch to weld? If no, get O/P, if you are, get O/A.