Tuan saya sangat senang sekali dengan adanya video ini dan saya sangat terbantu dalam pekerjaan saya atas adanya video ini dan saya sangat berterima kasih banyak 🎉🎉
next project. you should build a low cost mechanism to raise or lower a desk. maybe air hydraulic , electric gears, old school industrial crank wheel. that would be awesome
Don't forget about their extreme workbench build. Perhaps this could be an upgrade for this. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-38yPR25VSw4.html
listen to the boss,,,,, don't forget to stop by for black coffee together... goes duit and goes natural so that you will increase your enthusiasm for work and add brothers thank you very much
isnt the UN-seal leak to she otherside, cause it can handle preasure only from direction of the V-grove. What for you put that dustseal in there at the middle?
It has almost twice the pushing power then a normal double acting piston. , but it's allot longer. Can be handy in some situations where you need lots of power and don't have the space for a bigger cylinder.
Безусловно очень аккуратно и профессионально. Однако отсутствие зеркала самого цилиндра вряд-ли позволит ему долго прослужить. Момент с ханинговкой либо вырезали, либо его просто нет.
The first wrong thing in this video is the lathe operator handling this chrome bar in jaw chuck with no protection on jaws. I work in industry with those things and cylinders and this is awfull to see. Always handle chrome bars with care and protect them from slaming or making literally any traces on them. Even a slight mark can make cylinder useless by scraping seal - we can see marks on rod too so this is bad already. (Normally any company that deals with rods and cylinders would scrap that rod immediately coz of risk breaching the seals, or in big dimensions they would re-chrome whole bar) . Second thing is terrible design of sealing. I see you guys are using bought up parts and for home use of this equipment it will be fine. But Im certainly sure that chambers are not sealed properly. Bottom head seal is direction seal and there shoyld be no wiper at all but second directional seal against upper chamber. This build is compromised by this and can be potentiolly dangerous if scaled upward in dimensions. Don't do that ever again, make individual head with sealing groves and instal double U seals. one for lower chamber and second for upper. Second head which is on the outside is ok.
Did you cut out the part about honing the inside of the cylinder because I can't see this ram actually lasting very long before the seals wear out and start leaking passing over a standard inside pipe finish...
There is so much more wrong with it. Did you saw at 10:30 how he had to bend the piston rod to assemble it. It will start leaking really soon. Video is looking nice and people who don't understand machining are liking it. But this is not the right way to make hydraulic piston. Most of it is wrong.
En ninguno de todos los videos de estas construcciones se puede ver el producto final funcionando . Esto es un defecto insalvable de estos videos . Queda uno mal . Es una gran decepcion despues de esperar todo el video que no se vea el producto funcionando , ya sea un vehiculo o una maquina , es frustante y por eso !!!!! no los vere nunca mas .!!.
I’m guestemating but the total surface area increased by doubling up the piston that way was only about one third more not the double you’d expect. This would be more of a benefit in retract than push as it is truely double in that direction. Considering all the extra piping it’s doesn’t seem like much of an improvement in size reduction over using a tube twice the diameter.
@@Crewsy . It’s not so obvious. The force is exerted on the surface area of the piston, the larger the area the greater the force, however on the second serial piston the surface area is diminished by the piston rod , you would actually get more force out of two parallel pistons than out of the serial setup. There is something that I almost completely forget about how to calculate the force on the second piston however. I kind of remember something about force being slightly greater than the total surface area of the piston with the rod taking up the middle of it. It is less than piston with the full surface area available but more than only the available surface area would suggest.
@@anomamos9095 You’re overthinking it. It’s obvious that a 6” circle has a much greater surface area than two 3” circles so doubling a cylinders diameter will way more than double its pressure. You specifically mention “using a tube twice the diameter.”
Great video. But disappointed in the product. With your lines this takes up a lot of room. Could have just used a slightly bigger diameter and had the same amount of power.
Good job, but just one thing the chamber of the piston will not be ideal because the inner surface is not smoothly so it will damage the seals in small time
I thought the same thing, but we can only assume that a man that can build hydraulic cylinders from scratch knows that and probably polished them off camera.
@@darylcompton3433 You know what happens when you ASSume. Another comment mentions that the “pipe” material he used is actually material made for hydraulics so it’s already the right surface inside. I ASSume that’s correct. 🤷🏻♂️ I certainly can’t dispute it.
Do you actually gain more with this? Looks like it would be more economical to have a larger diameter cylinder than to have a cylinder twice as long with half the stroke unless you just gain exponentially with it? Just trying to visualize where this would be best beneficial is all. I could see some machinery benefits with diameter space savings, but again losing a lot with length.
Did you use seamless pipe or tube? Honed or not as doesn't look like honed pipe from what I could see. Maybe isn't that big of deal. Neat build! Never studied hydraulics in detail and makes sense for a more compact diameter size.
Хорошо хорошо окей окей я думаю вы успеете потому что оборудование доставили остальное от вас зависит мы надеемся что логисты и трансфер будет во время 🕘
so... Double the surface for double the "output power" for the same diameter.. What's the purpose exactly? If it's compactness, you ruined it by having the inlet and outlets so HUGE. You could've mounted them 90 degrees so the pipes are hugging the pipe. You had welding control of the entire project.. You made it well, atleast?...
Great job! Congratulations, a question inside the tube needs to be given some kind of finish, or polish, what kind of tube did you use. Hugs Vicente (Brazil - BR)
@@philleeson7835 I think that was the point, maybe you need a really thin cylinder for some reason, this is one solution for that. Not sure he has a practical scenario, more like a proof of concept. 🙂
@Jocelyn Butty but it's actually only double the surface area in the retracting/pulling direction and like 1.5x in the other(ruffly without knowing piston and rod sizes). The second piston has the rod on both ends, giving it less total working surface area.
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