bravo ! this is the most in depth explanation video i have found on the operation of this style of jack , i found it very helpful in troubleshooting some issues with a set of x3 vevor 20 ton bottle jacks that were all low on oil !
this is an excellent explanation! I wonder whether the return spring for the air piston is even strictly necessary. Probably for speed more than anything else. The little hat which opens on the 'top' side of the air piston also effectively reduces the surface area of the piston face and therefore the force with which the compressed air will act against that side while the hat is open, making the force acting on the 'bottom' side of the air piston larger, which should cause the piston to move with constant force proportional to the product of the area of the "hat" and the pressure of the air. This is, I'm given to understand, how constant force gas 'springs' work.
Thanks for sharing your experience with these cylinders! Every bit of the video is helpful. I threw one out on my engine hoist a couple years ago. I would have rebuilt if I had known there were seal kits available. They are a mess though when you disassemble them.
I'm REALLY glad you carry the rebuild kits. One of the worst things to match to cylinders is those kits as they have no universal standards. So each manufacturer likes to reinvent the wheel. Just ask any heavy equipment mechanic.
I wish I could give you 10 thumbs up for this excellent lesson on how the air booster works. I am looking for a way to convert my manually operated hydraulic floor jack to an air/hydraulic jack. Unfortunately the starting price for air/hydraulic service jacks is above $1000. I don't bottle jacks because I can't get it in some places under my cars.
You answered my problem at the very end. I bought two of these to power a rotsserie and the air part never worked. I'll have to try tapping on it to free the ball bearings.
Great explanation of how they work, even better if you showed some close up pictures of the different components like the valve at the top of the plastic piston in the air pump like you did with the bypass groove.
What brand of jack is that? I ordered a Vevor 8 ton that looks 100% identical to that. I haven't received it yet, but I found out after ordering that Vevor claims it won't work horizontally? Tia
I'm looking at the electric hydrologic ram and see it has 10-50 plug. Could it be built with a 14-50 plug? I don't have enough room in my powerbox for a third 200v service in the garage.
Anything is possible, but on these you would need a 10,000+ PSI pump. Not safe, nor cheap, and not easy. We sell 2 different electric hydraulic systems, a budget one and a high performance one. Both at RogueFab.com. We sell bare cylinders for DIYers as well. Add your home brew pump and valve and you're off to the races.
Thanks for the great explanation of the air pump, I hadn’t ever pulled one apart yet to see the internals.
Thanks Joe and the Rogue Fab crew! 🙂👍
bravo ! this is the most in depth explanation video i have found on the operation of this style of jack , i found it very helpful in troubleshooting some issues with a set of x3 vevor 20 ton bottle jacks that were all low on oil !
Glad you found it useful!
What i learned is you are an outstanding engineer. Thank you for tediously describing the air over hydraulic cylinder system.
Of course! I love doing tech videos for you guys. We have more planned too.
this is an excellent explanation!
I wonder whether the return spring for the air piston is even strictly necessary. Probably for speed more than anything else. The little hat which opens on the 'top' side of the air piston also effectively reduces the surface area of the piston face and therefore the force with which the compressed air will act against that side while the hat is open, making the force acting on the 'bottom' side of the air piston larger, which should cause the piston to move with constant force proportional to the product of the area of the "hat" and the pressure of the air.
This is, I'm given to understand, how constant force gas 'springs' work.
Yes an area imbalance would move the cylinder. The spring either moves it or speeds up the return!
Thanks for sharing your experience with these cylinders! Every bit of the video is helpful. I threw one out on my engine hoist a couple years ago. I would have rebuilt if I had known there were seal kits available. They are a mess though when you disassemble them.
Thank you for simplifying it. I've been looking for a while for something to make sense
Of course!
I'm REALLY glad you carry the rebuild kits. One of the worst things to match to cylinders is those kits as they have no universal standards. So each manufacturer likes to reinvent the wheel. Just ask any heavy equipment mechanic.
I really want this bender! Soon, very soon!
Thank you, Alan! What will your first project with your bender be? -Joe
@@RogueFabrication the “KJ Racying” crosskart
Great explaination! I’m welding my bender up now and will be bending soon!
Hope you love it so far!
I wish I could give you 10 thumbs up for this excellent lesson on how the air booster works. I am looking for a way to convert my manually operated hydraulic floor jack to an air/hydraulic jack. Unfortunately the starting price for air/hydraulic service jacks is above $1000. I don't bottle jacks because I can't get it in some places under my cars.
I need one. Last tool I need to start fabricating Baja style front/rear bumpers and overland bed racks.
Baja f&r bumpers are the best!
Awesome video! Great content addition to the channel and very informative!
Glad it was helpful!
You answered my problem at the very end. I bought two of these to power a rotsserie and the air part never worked. I'll have to try tapping on it to free the ball bearings.
Good luck! Hopefully that works.
Awesome presentation! Thanks for sharing.
Thanks for watching!
Awesome video thanks
You're welcome!
Excellent video.
Thank you!
Great explanation of how they work, even better if you showed some close up pictures of the different components like the valve at the top of the plastic piston in the air pump like you did with the bypass groove.
Thanks for the feedback, we did a second video on how to rebuild these cylinders that shows some of the other parts of the ram in more detail!
@@RogueFabrication I Cannot find it
Love the video and love my bender
Awesome, glad to hear!
Rogue Joe is smarter than the average Joe
Good knowledge, legend
Does adding atf to cly help it to seal better on an air lift table ?
It came out of a Harley shop
We have never put ATF in one.
How to disassemble the piston on the rod?
Use a piece of tube in a vice, and the rod like a slide hammer. The piston pops right off.
@@RogueFabrication the piston rotating ini the rod right?
So does the tubing bender come with the air pump and you supply your own ram?
You can either purchase an air ram from us, or Harbor Freight, or Northern Tools, or you can upgrade to an electric/hydraulic system!
What brand of jack is that? I ordered a Vevor 8 ton that looks 100% identical to that. I haven't received it yet, but I found out after ordering that Vevor claims it won't work horizontally? Tia
Its one of our rams that we directly import. Found online at roguefab.com - Peyton
@@RogueFabrication thank you!
I'm looking at the electric hydrologic ram and see it has 10-50 plug. Could it be built with a 14-50 plug? I don't have enough room in my powerbox for a third 200v service in the garage.
Yes we can get it built with a 14-50 plug reach out to us for some more info!
Can you convert this to electric over hydraulic ….? For a budget
Anything is possible, but on these you would need a 10,000+ PSI pump. Not safe, nor cheap, and not easy. We sell 2 different electric hydraulic systems, a budget one and a high performance one. Both at RogueFab.com. We sell bare cylinders for DIYers as well. Add your home brew pump and valve and you're off to the races.
Any other finance options for those with out a business license/broke people credit. Affirm/sezzle/credova?
Check out the Financing tab on our website!