The British designed BOC torch has a similar mixer to the Henrob torch. There are many many of these around in many countries, most copied by the Chinese. If you calibrate the pressure on these torches to 4psi and use the smaller tips, you get the EXACT SAME RESULT. How do I know? I've tested both. The marketing spill behind the Henrob is that it has a "special" mixing chamber. It uses the venturi principle to get the oxygen to PULL the acetylene into the mixing chamber. It may be special but is far from unique. This principle has been present in some torches since 1920! You need to understand a little about chemistry and physics, but there is no magic in the Henrob. Also note that Barry McGough who is an excellent welder and salesman spins a few untruths in this video. He says: "the torch delivers the oxy and acetylene in equal quantities unlike a conventional oxy torch which delivers 5 parts oxygen to 2 parts acetylene. " This is, to put it mildly, "Bull Poop". When you adjust the flame to NEUTRAL, you have a 1:1 ratio of gases in the INNER CONE (C2H2+O2=2CO+H2), however there is a reaction in the outer flame envelope where oxygen in the air combines with the CO and the H2 of the inner cone so that CO+O=CO2 and H2+O=H2O. That is why a 1:1 gas ratio from the bottles leads to "5 parts oxygen to 2 parts Acetylene" or 2C2H2+5O2=4CO2+2H2O as the end result which includes the reaction in the INNER CONE and the reaction in the OUTER ENVELOPE. It has nothing specific to the Henrob torch. ALL torches are identical when you set a NEUTRAL FLAME. Then Barry says " it delivers oxygen and acetylene in equal quantities " You the welder decide what quantities are delivered by the cock valves on the torch. The torch is irrelevant. If you get a cheap Chinese BOC-like torch and set the regulators like Barry shows you at the end of the video. You will be able to use that torch like a Henrob torch IF YOU USE SMALL TIPS I take nothing away from the versatility of this torch which was made by the Australian Nicholas Dillon in the 1970s. Its pistol-like grip is a favourite for many welders. The claim that it saves on acetylene is correct but NOT specific to this torch. If you use any other torch which has the venturi system in the mixer and use 4psi with small tips you will get the SAME result. Detroit Torches is now making and selling these torches under the name DHC 2000 or Cobra and they have an eye-watering price. In their videos, they have employed another fast talking salesman (first) and welder(second) to promote the virtues of these torches. There is a lot of hype and they are far too expensive. If there was a market like there is for the Smith Little Torch there would be thousands of Chinese clones on the market. At the end of the day, check your mixer: if oxygen flows in a chamber where it can pull acetylene to better mix it, you have a Henrob/DHC2000 replica. Just fit very small tips and calibrate the pressure to 4 psi as Barry shows at the end of the video. Don't forget to fit flashback arrestors at the torch and the regulator. The non return valve sold with these torches should not be used. FBAs have non return valves built in.
So could not you use a small tip on a standard torch and get similar results? I'm asking because it seems the difference is finer tips with this type torch. Thanks for the video.
Peter Ford It's actually nothing to do with the tip size, the secret is how it's mixed before ignition. From there, you only need a smaller tip to achieve the same result.
Peter, to reiterate, theres a special induction action in the mixing chamber that causes the flame to have reduced turbulence characteristic, finer more accurate applied heat and less gas used. The Tips just direct the flame for different guage metals.
Actually what happens in this torch is exactly what happens in other torches, BUT NOT ALL! The British designed BOC torch has a similar mixer to the Henrob torch. If you calibrate the pressure on these torches to 4psi and use the smaller tips, you get the EXACT SAME RESULT. How do I know? I've tested both. The marketing spill behind the Henrob is that it has a special mixing chamber. It uses the venturi principle to get the oxygen to PULL the acetylene into the mixing chamber. This principle has been present in some torches since 1920! You need to understand a little about chemistry and physics, but there is no magic in the Henrob. Also note that Barry McGough who is an excellent welder and salesman spins a few untruths in this video, not uncommon for salespeople.
@@ZaarsShed The aggressive marketing behind the Cobra means that they try to tell you welding with the Cobra is a breeze. Not so. You need to learn your gas welding skills. Consider buying an original Smith little Torch (about AUD 290) it is used by jewelers. Runs on 2 psi and allows you to slowly earn how to gas weld small metal pieces. the same rules apply for thicker steel etc
@@redpost2380 I'm not phased by the marketing at all. I've done a gas welding course but they only had Comet 3 "monster" torches of course. DHC2000 is already much better off the cuff. I'm simply not as magical with it yet as the lady in the video (tip of the helmet visor to her!). E.g. for some reason I need to go tip size or two up against what the manual says when doing fillets in particular. Thread-thin cutting lines are amazing from the first try though. A kind soul donated me their Smith's Little Torch but I have yet to use it. Thanks for your advice!
@@ZaarsShed The Comet 3 has the same venturi system as the Dillon. What is amazing is that with a little tweak you can turn a comet 3 or BOC torch into a Cobra equivalent. You need to calibrate the pressure to 4 psi just as the Henrob video shows you
I'm sorry, but this torch is not the way to spend your hard earned money. I've been oxy/fuel welding for thirty-five of my past forty-five years and I've always been aware of this torch and I was even curious enough to buy one some time ago (a Dillon MK.III). After having my hands on it I immediately dismissed it as heavy and awkward. Some time passed and with more disposable income I decided to buy a new set of tips for it and give it a real try. Don't make this mistake yourself, there are superior oxygen/fuel torches out there, but this is not one of them.
Hi Eric, I'm sorry this has been your experience with the torch. Personally I found it difficult to learn oxy/acet welding with the traditional torch. It took me some time to get clean consistent welds. I also found the ergonomics of the torch difficult on my wrist. NOTE: this was ONLY for welding my 4130 aircraft air frames. When I decided to "invest" a large sum of my money into this torch, I had to un-learn the old ways and re-learn this new way (as per this video). The torch itself while does have some weight in it, I found it much easier to handle in difficult positions with less stress on my wrist. Yes, there are now other torches eg; mini torch that all have their merits - but there is no such thing as one that suits every welding situation. There are plenty of comparison reviews on RUclips to watch. Personally, the only problem I have with this torch is that if it was made in China like everything else, we'd probably be paying a more reasonable price for it - not these over inflated profiteering prices.
I learned with a conventional torch and then switched to the Henrob. There is no comparison. A conventional torch works. This works better. Way better. I had my welds tested with both conventional torches and this one; both passed but the Henrob welds had the edge. This was a CAA welding test required for working on aircraft using 4130 steel. The welds were laboratory tested in every conceivable way. If there is downside it is that the torch is a bit heavy. But if you use it a lot, you just adapt.
This is why I am here, ie. to hear opinions re. the COBRA DHC-2000... --but!-- opinions backed up by data. Please explain, with details, what you believe to be inferior in the DHC-2000, and especially what is superior in other torches. Thanks!
Having been an enthusiast gas welder myself for quite some time now, I dare to say that most of what's claimed in this video is just plain nonsense, to put it politely. Besides, if you weld (or worse, cut steel) for any appreciable length with this torch I wouldn't be surprised if you'd have to stop working due to the heat being unbearable - after all, you'd be holding your hand right upon the molten metal...
Hi Bartolomeo, while I would have to agree 100% with things "heating up" while cutting, the abilities of the torch are far from nonsense. To try and buffer the heat, they include a hand-guard/heat-shield which, mostly works, but only for a short time till the guard itself heats up. The torch itself make the gas welding learning curve a lot shorter, and indeed, it saves a huge amount on gas usage, that is from personal experience using the torch and traditional oxy/act torches.
I've had my torch for more than twenty years and I would never go back. My Henrob is fantastic.
These 2 need to run the fair circuit here in the States.
I think I'm in love. We could work on my truck together. Nice torch btw.
Excellent demonstration. I'm just now learning how to use my torch.
Rex Jenson I absolutely love mine. Yes, there is a small learning curve, but once you get going, it's an awesome tool.
The British designed BOC torch has a similar mixer to the Henrob torch. There are many many of these around in many countries, most copied by the Chinese. If you calibrate the pressure on these torches to 4psi and use the smaller tips, you get the EXACT SAME RESULT. How do I know? I've tested both. The marketing spill behind the Henrob is that it has a "special" mixing chamber. It uses the venturi principle to get the oxygen to PULL the acetylene into the mixing chamber. It may be special but is far from unique. This principle has been present in some torches since 1920! You need to understand a little about chemistry and physics, but there is no magic in the Henrob. Also note that Barry McGough who is an excellent welder and salesman spins a few untruths in this video.
He says: "the torch delivers the oxy and acetylene in equal quantities unlike a conventional oxy torch which delivers 5 parts oxygen to 2 parts acetylene. "
This is, to put it mildly, "Bull Poop".
When you adjust the flame to NEUTRAL, you have a 1:1 ratio of gases in the INNER CONE (C2H2+O2=2CO+H2), however there is a reaction in the outer flame envelope where oxygen in the air combines with the CO and the H2 of the inner cone so that CO+O=CO2 and H2+O=H2O. That is why a 1:1 gas ratio from the bottles leads to "5 parts oxygen to 2 parts Acetylene" or 2C2H2+5O2=4CO2+2H2O as the end result which includes the reaction in the INNER CONE and the reaction in the OUTER ENVELOPE. It has nothing specific to the Henrob torch. ALL torches are identical when you set a NEUTRAL FLAME.
Then Barry says " it delivers oxygen and acetylene in equal quantities " You the welder decide what quantities are delivered by the cock valves on the torch. The torch is irrelevant.
If you get a cheap Chinese BOC-like torch and set the regulators like Barry shows you at the end of the video. You will be able to use that torch like a Henrob torch IF YOU USE SMALL TIPS
I take nothing away from the versatility of this torch which was made by the Australian Nicholas Dillon in the 1970s. Its pistol-like grip is a favourite for many welders. The claim that it saves on acetylene is correct but NOT specific to this torch. If you use any other torch which has the venturi system in the mixer and use 4psi with small tips you will get the SAME result.
Detroit Torches is now making and selling these torches under the name DHC 2000 or Cobra and they have an eye-watering price. In their videos, they have employed another fast talking salesman (first) and welder(second) to promote the virtues of these torches. There is a lot of hype and they are far too expensive. If there was a market like there is for the Smith Little Torch there would be thousands of Chinese clones on the market. At the end of the day, check your mixer: if oxygen flows in a chamber where it can pull acetylene to better mix it, you have a Henrob/DHC2000 replica. Just fit very small tips and calibrate the pressure to 4 psi as Barry shows at the end of the video. Don't forget to fit flashback arrestors at the torch and the regulator. The non return valve sold with these torches should not be used. FBAs have non return valves built in.
A terrific demo.
Never seen this torch. In future I look at buying one for personal use.
Excited to try it
Once you get use to it, you never would go bakl to standard torches.
IMPRESSIVE THANKS
I had one of these torched eish i could find it
As he is burning the tips of his fingers off this manifold is not hot at all 😅
So could not you use a small tip on a standard torch and get similar results? I'm asking because it seems the difference is finer tips with this type torch. Thanks for the video.
Peter Ford It's actually nothing to do with the tip size, the secret is how it's mixed before ignition. From there, you only need a smaller tip to achieve the same result.
Peter, to reiterate, theres a special induction action in the mixing chamber that causes the flame to have reduced turbulence characteristic, finer more accurate applied heat and less gas used.
The Tips just direct the flame for different guage metals.
Actually what happens in this torch is exactly what happens in other torches, BUT NOT ALL! The British designed BOC torch has a similar mixer to the Henrob torch. If you calibrate the pressure on these torches to 4psi and use the smaller tips, you get the EXACT SAME RESULT. How do I know? I've tested both. The marketing spill behind the Henrob is that it has a special mixing chamber. It uses the venturi principle to get the oxygen to PULL the acetylene into the mixing chamber. This principle has been present in some torches since 1920! You need to understand a little about chemistry and physics, but there is no magic in the Henrob. Also note that Barry McGough who is an excellent welder and salesman spins a few untruths in this video, not uncommon for salespeople.
thanks thanks
please add more from henrob cobra
magen david You can Google or search RUclips for the Cobra2000. That is the current model.
is it available in South Africa?
redewaan josias Try your closet eBay - It's available in the USA and ships to most countries...
What kind of face shield is that
Great demo!
Where do I buy one nowadays in Australia?
there are many around as welders dump gas for Mig and Tig. Flea markets, local fairs etc
@@redpost2380 thanks. I've ended up buying new from the US. Great kit though I'm still learningy ways around it.
@@ZaarsShed The aggressive marketing behind the Cobra means that they try to tell you welding with the Cobra is a breeze. Not so. You need to learn your gas welding skills. Consider buying an original Smith little Torch (about AUD 290) it is used by jewelers. Runs on 2 psi and allows you to slowly earn how to gas weld small metal pieces. the same rules apply for thicker steel etc
@@redpost2380 I'm not phased by the marketing at all. I've done a gas welding course but they only had Comet 3 "monster" torches of course. DHC2000 is already much better off the cuff. I'm simply not as magical with it yet as the lady in the video (tip of the helmet visor to her!).
E.g. for some reason I need to go tip size or two up against what the manual says when doing fillets in particular.
Thread-thin cutting lines are amazing from the first try though.
A kind soul donated me their Smith's Little Torch but I have yet to use it.
Thanks for your advice!
@@ZaarsShed The Comet 3 has the same venturi system as the Dillon. What is amazing is that with a little tweak you can turn a comet 3 or BOC torch into a Cobra equivalent. You need to calibrate the pressure to 4 psi just as the Henrob video shows you
Just picked one up. A normal torch can’t even compare to this. Thanks for this video being up or else idk how the f*ck to use it.
These are no longer for sale. I'll stick with my boc model o
detroittorch.com makes and sells these
@@bobmorris1432 Can it sell outside the US?
how does it work with oxy propane
tom thompson Not sure, try looking on RUclips.
ok , shall do , many thanks
This will not work with oxy propane, I tried it with ours.
Bast werlder you are
Would marry her on the spot.
I'm sorry, but this torch is not the way to spend your hard earned money. I've been oxy/fuel welding for thirty-five of my past forty-five years and I've always been aware of this torch and I was even curious enough to buy one some time ago (a Dillon MK.III). After having my hands on it I immediately dismissed it as heavy and awkward. Some time passed and with more disposable income I decided to buy a new set of tips for it and give it a real try. Don't make this mistake yourself, there are superior oxygen/fuel torches out there, but this is not one of them.
Name one and why
Hi Eric, I'm sorry this has been your experience with the torch. Personally I found it difficult to learn oxy/acet welding with the traditional torch. It took me some time to get clean consistent welds. I also found the ergonomics of the torch difficult on my wrist. NOTE: this was ONLY for welding my 4130 aircraft air frames. When I decided to "invest" a large sum of my money into this torch, I had to un-learn the old ways and re-learn this new way (as per this video). The torch itself while does have some weight in it, I found it much easier to handle in difficult positions with less stress on my wrist. Yes, there are now other torches eg; mini torch that all have their merits - but there is no such thing as one that suits every welding situation. There are plenty of comparison reviews on RUclips to watch. Personally, the only problem I have with this torch is that if it was made in China like everything else, we'd probably be paying a more reasonable price for it - not these over inflated profiteering prices.
ruclips.net/video/48Do3tNXc18/видео.html
I learned with a conventional torch and then switched to the Henrob. There is no comparison. A conventional torch works. This works better. Way better. I had my welds tested with both conventional torches and this one; both passed but the Henrob welds had the edge. This was a CAA welding test required for working on aircraft using 4130 steel. The welds were laboratory tested in every conceivable way.
If there is downside it is that the torch is a bit heavy. But if you use it a lot, you just adapt.
This is why I am here, ie. to hear opinions re. the COBRA DHC-2000... --but!-- opinions backed up by data. Please explain, with details, what you believe to be inferior in the DHC-2000, and especially what is superior in other torches. Thanks!
Having been an enthusiast gas welder myself for quite some time now, I dare to say that most of what's claimed in this video is just plain nonsense, to put it politely.
Besides, if you weld (or worse, cut steel) for any appreciable length with this torch I wouldn't be surprised if you'd have to stop working due to the heat being unbearable - after all, you'd be holding your hand right upon the molten metal...
Hi Bartolomeo, while I would have to agree 100% with things "heating up" while cutting, the abilities of the torch are far from nonsense. To try and buffer the heat, they include a hand-guard/heat-shield which, mostly works, but only for a short time till the guard itself heats up. The torch itself make the gas welding learning curve a lot shorter, and indeed, it saves a huge amount on gas usage, that is from personal experience using the torch and traditional oxy/act torches.
I've had my torch for more than twenty years and I would never go back. My Henrob is fantastic.
Peter, thanks for the comment. I’ve had no luck finding welders who own and use this torch only nah sayers who have never even tried it.