How to Straighten a Bent Hydraulic Cylinder Rod || Rebuilding a Bent Hydraulic Cylinder Rod hydraulic cylinder bent rod #hydrauliccylinderbentrod #straighteninghydrauliccylinderrod #fixingabenthydrauliccylinderram #hydrauliccylinderstuck
My heart is in my mouth when I see work like this being done in sandals. I was helping a work colleague lift a truck crankshaft from a bench into a cradle so it could be put in the cleaning bath. I was an apprentice and he was the mechanic and did not want to go to the other end of the workshop and get the mobile crane. It slipped from his hands and I let go and jumped back but he was not quick enough and it landed on his foot. The steel cap saved his toes but he still had broken bones that took months to heal with several operations needed. It was over a year before he could walk without pain.
This is nothing, the metal casting videos from these types of channels are something else. Sandals and zero eye wear. It's tragic to watch, to be honest, because you just know there are dozens or hundreds of serious injuries behind the scenes you're not seeing.
Каждый раз, когда смотрю подобные ролики, меня поражает мастерство и профессионализм таких ребят. Без должного оборудования они умудряются проводить довольно таки сложные ремонты. Молодцы! Наилучшие пожелания из Беларуси!
You do realize that the O.D is hard chrome plated. Any bending creates micro cracks all along the surface the seals ride on. Also they’re pushing down directly on the shaft with the press ram….I’m sure there’s a nice big divot there now. Leaks, leaks and more leaks….this is a dumpster fire!
Wow, no PPE, hell, no shoes, I'm sure that eye they were beating is on spec, and the seals pinched while beating the rod into the cylinder with a sledge, are 100%! Wow! I bet they pull 5-10 miles a day on that hoist chain and no one seems to mind the wheel bearings in the trolly need some help. WOW! I'm totally confident that hydraulic press got them within in .005 LOL. And the. Micrometers looked dragged down a dirt road. I don't know how much they charge for that job, but its too much!
Notice how they covered the eye with a red rag when they put it in the press. This was so you didn't notice they swapped the unit with a good one when it mysteriously changed color after becoming straight. Hey, with 3.4 million views and counting, they're getting paid for the content regardless of what they're actually accomplishing in the shop. Where's Funk FPV when we need him?!?
We tried to straighten a hydraulic shaft to test a new press we got. We put enough pressure on it so that it was about straight when it broke. Two pieces flew around the shop like shrapnel. How the shaft got bent without it being bent back is something a metal expert would understand, but we could have been killed. That was the end of that. When you are stressing something with that much pressure you have to have all your ducks in a row. Ours were not even in the same pond.
For many years we had an bent ram spear kicking around our workshop. The guy who tried, unsuccessfully, to straighten it will never do anything ever again. That's right, it killed him 😢
A good hydraulic piston will not bend but break. I assume this one was cast and made three streets away from a mixture of a bicycle, a transformer and a rickshaw.
When metal bends due to being stressed, its characteristics change and in many cases it hardens; that is what you experienced. In this video that was not the cases. However, that doesn't men that all is well, no to the contrary. It's permanently damage. This hydraulic piston rod won't be able to carry the loads that it was designed for and therefore it's dangerous.
any metal that bends without breaking gets harder in the location of the bend, known as work-hardening. Bottom line: you can't bend it back with simple loading, if at all.
Добрый день. Да вы посмотрите у нас какие умельцы на Руси, свои доморощенные так сказать, те самые которые дырки в поршнях сверлят и на вкладышах дреммелем борозды нарезают, а еще норовят все медью измазать. Это я про д.Сережу Городецкого и Рамазана Акоева, эти гуру вообще все пальцем определяют на ощупь. Им измерительный инструмент в принципе не нужен. А всю техническую литературу по их мнению написали придурки инженеры, ни черта не понимающие в конструкции ДВС. А вы про Пакистан удивляетесь. Они от безысходности все это делают.
Fascinating! I know when they taped the ends with yellow tape that they were re-chroming the shaft. What was that process (other than 'electrolytic plating')? It looked like they were dipping it into rocks.
At first i was wondering with that rench as well, especially if you have all this latches to just make one... on the other hand, they are not able to do any harm to nut that size anyways...
Всё что сделали чуваки в этом видео - заменили гнутый шток на новый. Видео монетизировано. И они по угару сняли кусок как они якобы выпрямили шток. Это всё хрень 😂 там идёт тупо склейка выпрямление гнутого штока - бац ровный шток, который они уже проверяют микрометром. Там даже видно, крепление гнутого штока измазано краской, а ровный уже без краски. Причём до ровного штока прессом не докасаются, а только делают вид. В любом случае даже если бы они как-то выпрямили шток, то ему один путь в помойку, т.к. он уже имеет неравномерные внутренние напряжения металла и опять согнется в том же месте при значительно меньших нагрузках, чем мог выдерживать новый негнутый шток. По сути кроме съёма гнутого и установки нового в этом видео всё остальное фэйк-сьемка для ютюба.
Another reason to like YT. These guys bust their asses every day for thousands of years with no appreciation. Now, thanks to YT over 2 million people are watching them & giving them compliments. BTW, let's not forget to give them props for wearing sandals to work. I couldn't imagine dropping any of that stuff on my foot wearing steel-toed boots nevermind sandals.
No pude dejar de verlo hasta que terminó. No se porqué me llaman tanto la atención éste tipo de videos Y me parece un buen ambiente laboral algo así como agradable.
Rechroming the surface - any chips, cracks or scratches in the chrome surface can cause hydraulic leaks and/or the entrance of foreign materials into the barrel which will destroy the wear bands and seals and can damage the inside of the barrel and further damage the rod..
Yo trabaje hasta. Abril. De este año.023..x que me' jubile. Trabaje.30. Años..asiendo hudraulica. Que trabajo lindo. X su presicion .como van las piezas. Lis repuestos. Sellos. Etc...felisitaciones. x. El vidio. Sigan pasando. Me' encanta. Son muy entretenidos. Y didacticos. Gracias y sigan asi. Gracias. Hasta. Siempre....
Amazing work! Ive done this myself, but my shaft was bent just a little bit. It took a lot of pressure to bend it back, and it wasnt perfect but good enough and works well. Its just amazing skills what theese guys do here
@@FireBeamthat's what it looks like. That cylinder looked like it was bent too much to be usable. It snapped in two trying to straighten it out. That's why it's not shown. It goes from being bent to perfectly straight. Nothing in-between of them working it back into shape.
Anybody else notice they switch rods in the press? The original bent rod was not the same as the straight one. Notice the different colors of paint on the eye end.
WOW!!!!!!!!! Good to see that you aren’t wasting that PhD in metallurgy and materials science. Personally, I missed the unit where they covered the impossibility of straightening a piece of steel. I’m so glad that you set the record straight (pun intended”. New textbooks will be written.
Please stop hitting the casting with the sledge hammer without a protective piece of wood. That sets up a future crack in that critical high stress area. Did they check/clean/measure the bore ?
رغم أنه عمل رائع و جبار واحي هؤلاء الرجال على ذلك ، لكن لا اعتقد أن العملية ستنجح إلى حد كبير ،لأن مثل هذه القطع التي تعمل بجهد أكبر إن تعرضت لصدمة بالغة لن تعود مثلما كانت ابدا وستعيد الكرة ثانية ! على كل حال كما يقول المثل الواشك على السقوط يمسك في الأشواك
I’m amazed they didn’t have a cylinder test bench. If anyone replies about the working conditions etc. They have lathes , a chrome tank etc you’d think they’d could put together a simple test bench with a electric pump to test hydraulic cylinders under pressure.
oi,gostaria que vocês acompanhasse o equipamento até o destino final,ou seja sua montagem na máquina, e ele funcionando sem vazamentos.. obrigado,eu amo meu Brasil.
Porque havia de ter vazamento? O fluído hidráulico apenas trabalha no núcleo do atuador e o que o impede de vazar são aqueles grandes verdades na extremidade do veio empenado. Os outros verdades que são montados na cabeça apenas servem para impedir que entre demasiada sujidade no núcleo do atuador, e isso sim acontecerá certamente assim que o empeno começar a destruir a capacidade desses verdades.
These indian engineers work miracles daily with the least equipment and technology..they are excellent general engineers. They just get the job done and will work 24/7 if they have to
Согнутый потом под прессом под давлением равняет и место где прижимает останется мятина и ямки. Просто они ещё восстановили зеркальность и собрали. Это во время работы дасть о себе знать. Масла из выемки будет пропускать и сальники не поможет.
The cylinder rod is straightened indeed, but it’s metal structure is demolished twice by the overload and the resetting. The metal’s memory will lead to a sudden fatigue’s breakdown.
I’m not sure, but I think that hole they put it in might have be an oil bath to heat the metal all the way thru to relieve the internal stresses. I seen hot oil baths used a lot when I was younger, but I think it is becoming a dying art these days
@@marshalltjones it’s so hard to tell what’s going on. They do things so different over there. I think it was India. But they make some amazing things with limited tools and equipment.
если измерять микрометром кривой и прямой штоки, то показания будут одинаковыми. тогда зачем мерить? и вообще, на трещины шток не проверяли, испытаний после сборки не делали. блестит да и ладно😅
Какие испытания 😅 Когда вбивали обратно видно как шток местами легко идёт то трудно... Напряжение металла в изгибе не сняли, скоро опять привезут на ремонт, зато без работы не останутся 😂
@@PeocTaT1 Полировка вручную пневмомашинкой с кругом . В Ванной хромирование ? и потом голыми руками ? И какие то обрезки там ? Смутило , что после ванны измерение микрометром ,
if the hardness of the press axe is higher then the one they are straighting then a dent will happend , probebly a line since the contact type is between a circle and a surface .probebly
I take it that no one noticed that the rod that was “fixed” wasn’t the same one that went back into the cylinder as the one that came out. The nut they took off was different than the one they put back together. Also a different head gland. Also the rod eye is a different casting between the 2 cylinders. Yes I’ll admit that the work they are doing with primitive equipment is impressive the finished product isn’t actually what they advertise it to be.
It looks to me like a compilation of the process. I think each step is well represented in spite of the different parts involved. Kudos to the team for a comprehensive process with minimal equipment.
It's not an elaborate hoax as you are insinuating... Something got dismantled, something got straightened on the press ram and something got re-assembled... The video is just to show you what they do at these garages...
I have straightened Two ram shafts, but did not pull them apart, that makes work, and the risk of more damage.. A drilling rig support ram, 40mm ram 1.2mtr shaft was easy and done in about an hour, then back onto the rig mast and working fine... . The second was a 60mm dia 1mtr stroke, was not removed, but was straightened useing One of the other rams... Care is needed to be sure to press on the high spot, otherwise you get a corkscrew in the shaft and you can never get that out...cheers from New Zealand ...
