Airgas & praxair (Army also teaches this) says only to open the fuel gas 1 to 1.5 turns. I asked the fire department about this, they concurred. They went into a whole of reasons why to not fully open the valves, but the two main points I took away from it all was; In the event of a problem, it only takes that much to do an emergency shutdown. And damage/ leaks can occur by opening fully opening the valves, and manufacturers recommend not opening all the way, especially to full open stop. Just passing that along.
I am cutting titanium up to 12 inches thick. The man who taught me at my job hardly speaks english. Nobody has a understanding of the torch theyre just doing what they think is right. This was so helpful you have no idea. Im going to do more research!
I keep wondering if this guy is an actor, or the best technical salesman ever, or a SMITH engineer or what? I don't meet people like this in the welding sector.
I agree that there should be more of these videos! I check every few months. I have Smith equipment, and am inclined to trust them, especially after watching this one! It's one of the greatest lab presentations I've ever seen!
I don't think I have enjoyed watching any youtube video as much as I have enjoyed this one. Such a proffessional. Thank you so much. There is so much to learn from this gentleman.
This is helpful. I'd love to see another video or two showing how to get a neutral flame with the oxy-propane brazing tips (I have the MW-411) and also the oxy-propane rosebuds (I have the MT-805). Some additional commentary on the propane tank sizes required to run the rosebud for short periods of time (as opposed to continuous use) would also be helpful. Thanks in advance -- it's great to see high quality tools like your torches being made in the US. Keep the videos coming.
Thanks for the video. I just ordered a propane cutting torch just like the one you're using in the video and have never used propane to cut, so your video was perfect for me. Thanks for the info.
Thanks for your presentation! Kudos to you, your explanation of star patterns of gas flow is extremely helpful! I'm learning things now from your video that I'd hope that an apprentice metal worker might learn, so your video is extremely important to a whole bunch of people! (I'm a 70 y.o. retired pilot and amateur metal sculptor who recently changed from oxy acetylene to oxy propane.)
Great instructional video. Helped me understand how to use this specific setup. This guy should definitely be running a school when it comes to this kinda stop.
When this video first started out I thought I was going to hear about the Turbo Encabulator version of the OXY Propane Torch! I learned something new about the neutral flame that I did not know. After all I am an airplane driver not a welder. 🤣🛫
I was taught and always teach others to shut the fuel off first, then the oxygen. Also, there is no reason to fully open the valves. But there is a big reason NOT to open them fully. 1.5 turns is enough for fuel and oxygen to fully pressurize the system.
You ALWAYS, ALWAYS, Always turn the fuel off first otherwise as you turn off the fuel without the oxygen running, the flame of the fuel can crawl up the torch and gas hoses and cause an internal fire and possibly blow up the regulators. That's why the ministry requires flame arrestors on the base of the torch. When shutting down the torch the saying is " A before O or up you will go" referring to shutting off A (acetylene) before O (oxygen) or blow yourself up.
That is the way I learned it as well. Ag class at a small high school in S. Az in the 70's. My instructor was an island-hopping Marine in WW ll and a serious cat. He enforced lessons by a well-meaning smack to the back of the head, generally. Very effective I might add.
Thank you sir every thing you showed me I was doing wrong ,Trusting my welding supply to show me the correct way . I could never drop the cut piece like you showed ,I would have to tap off with a hammer . I had pressures at regulator set at what they suggested ,Witch was way to high . Thank you . My cut piece drops now just like yours .
This video is well above average compared with those who wish to deal in superfluous and useless chatter. Those who go to youtube for helpful information need more ladies and gentlemen of this caliber,
I started out watching this with the sound off and was getting a distinct Will Farrell vibe from this guy...so now I want to see Will Farrell do a skit about a welding teacher.
I have a question that may sound stupid. When should you stop using the oxygen from the cylinder? Is it a case of going until you lose all pressure or should you stop before that. I have flashback arrestors fitted if that makes a difference.
Yes! He's getting those numbers from a table in the little book that comes with the regulator. In the welding world generally I think there's a lot of guessing at this point because the information is lost, or you are using different brands of torch and tips! There's general information about oxy-acetylene cutting that helps you figure this out (it's in old books), but oxy-propane technique is not so common.
awesome lecture! I'm going to buy a setup and only use propane. I figure the lower temp will reduce the chances of "flaying" charred steel attaching itself to my cornea. :)
Filling a couple acetylene tanks today, I realize I have to move to a cheaper gas and propane will seem free in comparison. Just a couple fills will pay for the new equipment.
Why did you shut off the oxygen to kill out the flame? I've always been told on acetylene rigs to shut off fuel first. Is this a difference between propane and acetylene?
He did a fantastic job of presenting this propane torch, i didnt know propane could be as fast and clean as Acetylene in an cutting operation. Im still not convinced that it could be better for welding than Acetylene tho. Also this Gentleman could just be the dad of Jason from Fireball Tools.
People DON'T weld with Propane! Acetylene and sometimes Hydrogen, that's it! Brazing, silver-soldering commonly, but Acetylene does it all if you have it, if you can afford it, if it's not out of stock (!).... I use both. THIS VIDEO shows something that really nobody knows about using Propane and Oxygen, I try to get students to watch it, 12 years later.
are there more videos on this channel??? I only see 3 videos from 6 years ago! It asks me to subscribe and to turn on notifications for upcoming videos, but it seems like we'll be waiting awhile.....
I don't think so! The cutting tips and regular torch tips for Propane are noticeably different. Ah, flame speed is lower for this combination than for oxy-acetylene or oxy-hydrogen. SO the tips have some feature to "anchor" or "sustain" the flame so it doesn't just blow off the end of the torch. It keeps re-lighting it constantly. The deal is that plain acetylene tips WILL WORK sort of, but you can't run them nearly as hard! My ignorance of this fine point and the set-up we see here used to make me think that Oxy Propane was weak and couldn't do much. I didn't know what I was doing! The correct set up as we see here gives a kind of shrieking effect to the torch that makes it hard to relax. Frankly, I'll use Acetylene if it's there, but sometimes it's not! And some kinds of work don't need it.
it really depends on what you're trying to do... for the most part, oxy-propane will get the job done, cutting, brazing, heating... plus it is readily available in case you run out... but you CANNOT weld with it, only with oxy-acetylene.
That's a load of bullshit, my 1910 Westinghouse vice jaws were repaired in 1998 with oxy propylene welding by my welding instructor. Still use the same vise today, and a pinch point bar and a simple jack all repaired via oxy propylene. Go find a new hobby.
@@tonyb7748 okay maybe you have some reading comprehension difficulty I said oxy-propane first of all Secondly, from what I read (and remember at this point..), it has to do with the stoichiometry of oxy-pro* combustion i.e. not balanced so you get inclusions of hydrogen (I believe it was hydrogen) molecules in your steel What do you know about metallurgy?
Seems a big difference in the shutdown. I was accustomed to fuel maintaining combustion after the oxygen shutoff. Perhaps I was using an unsafe procedure or am less familiar with propane as fuel.
I just boucht an oxy acet torch and I am needing it more for heating. SO do you know where you would get a conversion kit to get it from acet to propane? thanks
You can get propane tips, they look different. The acetylene tip just has a plain hole in the flat end of the tip, propane tips have a recess in the end, or some kind of extra holes, something to "anchor" the flame. Propane burns slower than acetylene, and if you use regular tips you can't really crank it up b/c the flame will blow off. You'll see a gap between the tip of the torch and the flame, and it will want to go out. Air propane tips have these sustainers on them, too. If you look at the tip there might be little holes around the central one, or something that looks like a gear. SO, your main working flame is surrounded by little flames that keep the main one lit.
This guy is a throwback to the instructional movies from the 60's and 70's.
Lol yeah .... Not only his presentation but his voice too. 👍😁
It's like I'm listening to a radio announcer from the 80's. You got a beautiful voice.
10 years old, but still the BEST video giving the procedure for oxy/propane cutting.
If Harvard had a shop class, this guy would be the Professor there.
I just wonder did how many people who went to Harvard took a shop class?
No, you idiot
@@donaldmack7213 Congrats, brother. You just won the pendejo of the day award. Way to go.
@@horsehide3039 😂
@@donaldmack7213100%, actually, it's required. Med students have to take it twice, if I'm not mistaken.
Airgas & praxair (Army also teaches this) says only to open the fuel gas 1 to 1.5 turns.
I asked the fire department about this, they concurred. They went into a whole of reasons why to not fully open the valves, but the two main points I took away from it all was;
In the event of a problem, it only takes that much to do an emergency shutdown.
And damage/ leaks can occur by opening fully opening the valves, and manufacturers recommend not opening all the way, especially to full open stop.
Just passing that along.
That procedure is for oxy-Acetylene
I am cutting titanium up to 12 inches thick. The man who taught me at my job hardly speaks english. Nobody has a understanding of the torch theyre just doing what they think is right. This was so helpful you have no idea. Im going to do more research!
Gotta love this presenter. He has such a great, classic baritone voice....he could do voiceovers for movies!
I keep wondering if this guy is an actor, or the best technical salesman ever, or a SMITH engineer or what? I don't meet people like this in the welding sector.
Perfect lesson and Smith makes beautiful torches.
I agree that there should be more of these videos! I check every few months. I have Smith equipment, and am inclined to trust them, especially after watching this one! It's one of the greatest lab presentations I've ever seen!
I don't think I have enjoyed watching any youtube video as much as I have enjoyed this one. Such a proffessional. Thank you so much. There is so much to learn from this gentleman.
This is an excellent video, the best I have found on oxy propane cutting.
This is helpful. I'd love to see another video or two showing how to get a neutral flame with the oxy-propane brazing tips (I have the MW-411) and also the oxy-propane rosebuds (I have the MT-805). Some additional commentary on the propane tank sizes required to run the rosebud for short periods of time (as opposed to continuous use) would also be helpful.
Thanks in advance -- it's great to see high quality tools like your torches being made in the US. Keep the videos coming.
Super video, thanks. Never saw that “star pattern@ trick for regulating O2 ratio.
Excellent.
Simple.
Not too much info, and not too little.
Exceptional, clear, confident, precise and professional presentation. Thank you.
An excellent instructional video by a professional. Covered everything I was curious about. Thank you Sir.
I think that that was the best presented and organised instructional video i have ever seen. Ever.
Sensational, thanks.
It would be great to see him make a video demonstrating proper adjustment of an oxy propane rosebud
I learned how to use an oxygen acetylene cutting torch in school but never oxygen Propane. Great vid 👌🏾
👍 TWO THUMBS UP 👍 This video should be a mandatory watch in all metal shops 💯
Excellent instruction lesson Dale.
You’re a great teacher.
Excellent video - Entertaining and educational. Thanks for putting it out there.
This was the best description I've heard in depth and I surely appreciate it thank you so much
Thanks for the video. I just ordered a propane cutting torch just like the one you're using in the video and have never used propane to cut, so your video was perfect for me. Thanks for the info.
Can an acetylene regulator be used for propane?
@@ValMartinIreland yes
Thanks for your presentation! Kudos to you, your explanation of star patterns of gas flow is extremely helpful! I'm learning things now from your video that I'd hope that an apprentice metal worker might learn, so your video is extremely important to a whole bunch of people! (I'm a 70 y.o. retired pilot and amateur metal sculptor who recently changed from oxy acetylene to oxy propane.)
Watching in 2023 just learning to cut with a torch, very helpful video, thank you
Now THAT’S an Instructional video 👍👍👍👍👍👍👍👍👍👍
Great instructional video. Helped me understand how to use this specific setup. This guy should definitely be running a school when it comes to this kinda stop.
Simply just brillaint.... Thanks very much!!
Excellent! Great instructor!!!
I love the enormous Cincinnati shear in the background
very well done video, thanks. the instructor is very well spoken.
That was great. Great teacher! 👏
Excellent video. Wasn't aware propane could be used to cut steel. Thanks for posting it.
brilliant, very well presented.
When this video first started out I thought I was going to hear about the Turbo Encabulator version of the OXY Propane Torch! I learned something new about the neutral flame that I did not know. After all I am an airplane driver not a welder. 🤣🛫
Excellent instruction. Thank you!
Great film smith equipment safety teacher guy 5 years ago! :-)
Great video! I always wondered what John LaRoquette was up to these days. ;-)
This saved me a bundle of money.
Thanks
This is so good. I love this guy.
Excellent video , greetings from Brazil !
I was taught and always teach others to shut the fuel off first, then the oxygen. Also, there is no reason to fully open the valves. But there is a big reason NOT to open them fully. 1.5 turns is enough for fuel and oxygen to fully pressurize the system.
You ALWAYS, ALWAYS, Always turn the fuel off first otherwise as you turn off the fuel without the oxygen running, the flame of the fuel can crawl up the torch and gas hoses and cause an internal fire and possibly blow up the regulators. That's why the ministry requires flame arrestors on the base of the torch.
When shutting down the torch the saying is " A before O or up you will go" referring to shutting off A (acetylene) before O (oxygen) or blow yourself up.
That is the way I learned it as well. Ag class at a small high school in S. Az in the 70's. My instructor was an island-hopping Marine in WW ll and a serious cat. He enforced lessons by a well-meaning smack to the back of the head, generally. Very effective I might add.
crystal clear instruction
I'd love to hear him talk on turbo encabulators.
Thanks, great explanation. Greetings from Maine.
Very professional. Nice job
That's a cool Cincinnati cutter in the background. Those things are essentially immortal.
Thank you so much . The best
Super presentation bro! Thank you sir.
@AnthonyUK actually you can, I am, as are the shops around here.
Great video. I'm "converting" from Acetylene to Propane.
Hubjeep why? I’m just curious
Thank you sir every thing you showed me I was doing wrong ,Trusting my welding supply to show me the correct way . I could never drop the cut piece like you showed ,I would have to tap off with a hammer . I had pressures at regulator set at what they suggested ,Witch was way to high . Thank you . My cut piece drops now just like yours .
Throw and precise information. He explains things very well. All-around excellent video!
This video is well above average compared with those who wish to deal in superfluous and useless chatter. Those who go to youtube for helpful information need more ladies and gentlemen of this caliber,
Well done video u hit all key points n gave a very good demo
Thank u.
Learned more in this video than a year of welding class
I started out watching this with the sound off and was getting a distinct Will Farrell vibe from this guy...so now I want to see Will Farrell do a skit about a welding teacher.
sir it was a great presentation
Cool tip never knew that star trick
Very informative !
thank you so much, it very useful.
Thats a nice torch !!
I bet he would make an excellent drill sergeant.
Great video - reminds me of being an apprentice 😂
I have a question that may sound stupid. When should you stop using the oxygen from the cylinder? Is it a case of going until you lose all pressure or should you stop before that. I have flashback arrestors fitted if that makes a difference.
Thank you for that tutorial...
The red propane cylinder used is such a better size for a cart than a 20 lb. grill tank. What is the size or name of the propane cylinder?
These are great videos. QUESTION for you or anyone. Do these 10lb and 40lb settings change as the thickness in metal changes? Thanks
Yes! He's getting those numbers from a table in the little book that comes with the regulator. In the welding world generally I think there's a lot of guessing at this point because the information is lost, or you are using different brands of torch and tips! There's general information about oxy-acetylene cutting that helps you figure this out (it's in old books), but oxy-propane technique is not so common.
awesome lecture! I'm going to buy a setup and only use propane. I figure the lower temp will reduce the chances of "flaying" charred steel attaching itself to my cornea. :)
Filling a couple acetylene tanks today, I realize I have to
move to a cheaper gas and propane will seem free in comparison. Just a couple
fills will pay for the new equipment.
Why did you shut off the oxygen to kill out the flame? I've always been told on acetylene rigs to shut off fuel first. Is this a difference between propane and acetylene?
thank i can finally cut thick plate properly
smithequipment professional
Handy to know. Got to book a course to use burning gear
Great info.
He did a fantastic job of presenting this propane torch, i didnt know propane could be as fast and clean as Acetylene in an cutting operation.
Im still not convinced that it could be better for welding than Acetylene tho.
Also this Gentleman could just be the dad of Jason from Fireball Tools.
People DON'T weld with Propane! Acetylene and sometimes Hydrogen, that's it! Brazing, silver-soldering commonly, but Acetylene does it all if you have it, if you can afford it, if it's not out of stock (!).... I use both. THIS VIDEO shows something that really nobody knows about using Propane and Oxygen, I try to get students to watch it, 12 years later.
1:30 - Back fire connectors between hoses... and.... torch - Check.
But really great video. Thank you buddy
One of the best instructional videos I ever seen . Lot of trash videos on UA-cam this vid is like a oasis.
My left ear enjoyed this
what is the approximate burning temperature of this mixture and is it better than mapp and oxygen??
2.5 inch radius or diameter of star?
Good instruction
You already know the man knows how to do shit if his name is Dale
man that torch is clean and shiny lol
are there more videos on this channel??? I only see 3 videos from 6 years ago! It asks me to subscribe and to turn on notifications for upcoming videos, but it seems like we'll be waiting awhile.....
Can I use my acetylene tips with propane.
I don't think so! The cutting tips and regular torch tips for Propane are noticeably different. Ah, flame speed is lower for this combination than for oxy-acetylene or oxy-hydrogen. SO the tips have some feature to "anchor" or "sustain" the flame so it doesn't just blow off the end of the torch. It keeps re-lighting it constantly. The deal is that plain acetylene tips WILL WORK sort of, but you can't run them nearly as hard! My ignorance of this fine point and the set-up we see here used to make me think that Oxy Propane was weak and couldn't do much. I didn't know what I was doing! The correct set up as we see here gives a kind of shrieking effect to the torch that makes it hard to relax. Frankly, I'll use Acetylene if it's there, but sometimes it's not! And some kinds of work don't need it.
cool story bro
it really depends on what you're trying to do... for the most part, oxy-propane will get the job done, cutting, brazing, heating... plus it is readily available in case you run out... but you CANNOT weld with it, only with oxy-acetylene.
That's a load of bullshit, my 1910 Westinghouse vice jaws were repaired in 1998 with oxy propylene welding by my welding instructor. Still use the same vise today, and a pinch point bar and a simple jack all repaired via oxy propylene. Go find a new hobby.
@@tonyb7748 okay maybe you have some reading comprehension difficulty
I said oxy-propane first of all
Secondly, from what I read (and remember at this point..), it has to do with the stoichiometry of oxy-pro* combustion i.e. not balanced so you get inclusions of hydrogen (I believe it was hydrogen) molecules in your steel
What do you know about metallurgy?
@@tonyb7748 also your welding "instructor" is a dumbass and should be fired
Perfect
Nice vid... btw ALWAYS close the fuel first
close oxygen first
What happens when that button pressed?
Seems a big difference in the shutdown. I was accustomed to fuel maintaining combustion after the oxygen shutoff. Perhaps I was using an unsafe procedure or am less familiar with propane as fuel.
THANKSGIVING
He's only using 2 of the 3 valves on the torch. Ne never touches the lower oxygen valve .... why?
Heck yeah! Let's cut some steel...
I just boucht an oxy acet torch and I am needing it more for heating. SO do you know where you would get a conversion kit to get it from acet to propane? thanks
You can get propane tips, they look different. The acetylene tip just has a plain hole in the flat end of the tip, propane tips have a recess in the end, or some kind of extra holes, something to "anchor" the flame. Propane burns slower than acetylene, and if you use regular tips you can't really crank it up b/c the flame will blow off. You'll see a gap between the tip of the torch and the flame, and it will want to go out. Air propane tips have these sustainers on them, too. If you look at the tip there might be little holes around the central one, or something that looks like a gear. SO, your main working flame is surrounded by little flames that keep the main one lit.
Hi there can I use the same regulator of my acetylene to a propane tank? or i have to use a special one? And were can iI buy the tip for propane?
Different regs
Praise God !!! Thanks for sharing