Bent Hyd cylinder

old · Apr 11, 2009

Well last year I got a loader that had a broken frame and a bent cylinder. I fixed the frame today. I then took the bent cylinder and hooked it up to push it out all the way. Had a friend help me and used my 12 ton pipe bended to straighten it and it worked like a charm. I had figured a 12 ton would not be enough but it did the job just fine. Figured this info might help others here
Hobby farm

Jeff NWOH · Apr 11, 2009

I bet the cradles on that pipe bender worked slick on that ram. Excellent idea. I use my press more for straightening bent stuff than anything else. Never thought I needed one as the BFH always got me by. Certainly a lot less brutal and more precise letting the hydraulics do the work. Now that I have it I wouldn't do without.

Vito · Apr 11, 2009

Rich,
That's interesting.I didn't know you could bend them back straight enough to work 100%.
Have a Happy Easter

Vito

old · Apr 11, 2009

I'm not 100% sure yet how well it will or will not work but it sure does look straight now. Once I get the loader mounted I guess I will know how well it does really work

Gary from Va · Apr 11, 2009

I've actually had our local Cat dealer machine shop straighten a couple 4" dia. cylinder rods on our excavators. Worked good, and saved us about $8000.00

ray sprague · Apr 11, 2009

i have staitend them before also have welded the ends back on and shorted them by cuting off the dead end and welding it back on

Anonymous-0 · Apr 11, 2009

I've had more than one straightened in a machine shop with a sturdy press. There is a bit of a hazard, that sometimes they break and broken pieces fly. But often they straighten well. The machine shop generally took them apart to get at the whole piston rod and used a long steel scale to check for straightness.

Gerald J.

tom upton · Apr 11, 2009

Be very carefull when strightening cyl rods. Especialy if they are bent more than 20 degrees.I have personaly seen one break and fly endways out of a 60 ton press. It was a 2 1/2 inch rod about 2 feet long and it flew about 15 feet before it landed! Must have been made from some fairly high carbon steel. Our press has lexan guards front and back but this piece managed to go endways out the side of the press.
This being said I would say smaller dia. ag type rods are less likely to break. We have a millwright at work that does the "rougth" staightening in the press, then puts in v blocks on a t slotted table and uses clamps and a dial indicator to get rod usualy within a couple thou.We actualy straighten new turned and ground shafting matl. for specialty jobs as it is usualy not that straight.

rrlund · Apr 11, 2009

I thought I had ruined a bucket cylinder on one of the loaders yesterday. I had a bale on it and a U-Bolt broke. Everything came down lop sided and the ram was bowed pretty bad. Sat everything down and took the pressure off and it straightened out. Pure luck.

usetob · Apr 12, 2009

old, as you already know bent is one thing kinked is another story
good luck
Ron

Bent Hyd cylinder

old

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Jeff NWOH

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Vito

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old

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Gary from Va

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ray sprague

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Anonymous-0

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tom upton

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rrlund

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usetob

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