Thanks for this easy torturial. I've just flipped my 30 ton jack in maybe an hour, including welding the new plug etc. Way beter for a press than to use all those clumsy return springs etc when using an bottle jack in its original setup.
I love the creativity involved here. Instead of having machines perfect for every type of machining problem, you use standard tools that everybody has to solve problems. This is on the other scale of all the high-gloss high-class stuff you see around youtube where people seem to want to show off all their tools. Well done and thank you for taking the time to document the process!
Agreed. I get a kick out the “DIY” guy who are all like well first we’re go over to the lathe that everyone has in their back pocket , the well go over to the CNC…. This gentleman is real. At least. I make my own stuff all of the time and still learned a couple things.
Hi Home Crafter, there is a company in Australia that sells hydraulic presses with an up side down jack that they modify themselves. They also change the small pump around so that the pump works on the down stroke not the up stroke like yours. The seals at the top of the ram and the top of the pump need to be in good condition as normally the oil flows down away from them and so don’t leak much but when you turn the jack up side down they are immersed in oil all the time so they can leak. I have had to replace the seals in mine but it’s an easy job. Excellent video and I love your creative solutions to problems. Cheers Stuart 🇦🇺
Good day brother .that is better then my system i will remake my press in the future and i will separate the pump from the ram to use it like yours. thanks 👍
You don't need to modify anything, just insert the lever from the other side and your pump will work on the down stroke. The Polish company SKAMET also makes such presses with bottle jacks in the reverse position.
I looked for a way to make hydraulic press and your video appeared. Your explanation of how to do things and why you do them is excellent. Your workmanship with limited tools shows your creativity. I like people who troubleshoot and find a less expensive way to do things instead of giving up and buying a tool. Great video! I subscribed and will share.
I made a press with this kind of jack but I left it upright; all I did was weld a plate to the top of the jack and mounted it like that. In my opinion, why risk the leaks? It has worked without problems for over 20 years.
This is a great video. I’ve always wanted to open up a hydraulic jack. It’s amazing what you can build out of your own stuff when you have the time and or need for it. Thank you.
Next time instead of holding the jack in the vise to remove the large nut just use the vise to grip the nut in the upside down position and just turn the entire jack instead. Much easier that way brother. But don't get me wrong you did great on the jack!
you made 2 errors in that conversion, the first one is to not seal the pressfit of the copper tube in the base of the jack, the second one is to rely on the Oring on the jack cover gland to insure the oil tightness when the jack is in reversed position, a spring loaded oil seal is a must. I learned it the hard way. good video.
It's amazing what you can do with a piece of wire, a sheet of corrugated iron and some imagination... I liked it when you said the hammer is a very useful tool... You don't use brute force or muscles you just get a bigger hammer Is there anyway of connecting a pressure gauge to the jack or press to show how much pressure is being created 🤔. Just an idea Great work . Giday from Australia 🇦🇺
Yes it is. I wanted to buy a press last year, didn't do it. Looked this week, price had doubled. So, 30 tonnes bottle jack and the trick from this video it is.
if there is any improvement to be made , than its having the press work from underneath , a million more possebilities ... so turning the jack upside down is loosing strategy
I have tried inverting hydraulic jacks before, and they never work! Like the fluid in them drains to the other side, and they won’t pump. But they have enough fluid in them, because they always work just fine the right way?
I'm using my hydraulic jack on my press inverted for two years and I found out that I need to keep the return valve closed and the pump handle down 👇 ready to pump .Sometimes I don't use it for months but when I do it always works
After all this !!! Should took 10 mins more and finish the jack probably so the Handel will pump the sameway it did befor the chang over ,,,, does lifting the handel and press easier 😮😮😮
It would of been easy to just cut off the piston off the 3ton and get square like tubing weld a small channel iron on each side and weld the 3 ton piston in the center and weld a plate for base to mount the hydraulic straight up you can also put return springs if wanted. 👍👌✌️💯🛠️
You have to make sure that it's a multipositional jack. You are correct in that the cheap jacks won't work upside down. The labour in this video isn't worth it, just buy a press or build a frame type that takes a bottle jack without the hassle.
