Anybody make their own cylinder bench?

[catfixer]

I've started to look at building my own cylinder bench and would love to see guys who have done their own to get some idea.

 

[thepumpguysc]

I'v heard of people using "I" beams from the scrap yard.. the "I" cradles the cylinder and a smartly placed bolt will hold the rod to unscrew the bottom rod nut.. Maybe some clamps or wedges inside the channel will keep the cylinder from rotating while removing the top cylinder nut.

 

[StanRUS]

I copied local Cat dealer's bench, approximately $2500.00 for steel, double action hydraulic cylinder, hose reel etc plus $1800.00 for hydraulic power pack. You'll also need a overhead jib-crane or you could use a service truck crane to pick up and rotate the cylinder rod-head and cylinder barrel, required when honing and removing the head assembly off of the rod.

There are 2-3 benches for sale in S. Cal if your interested.

 

[Jatreecompany]

any pics?

 

[fd30]

Check out nut buster online we built a bench similar to theirs ,they have a lot of YouTube video that show it in operation.

 

[Zrupp]

I got the hair brain idea the other day to rig up a mobile service trailer. That would be an enclosed trailer and build a tear down bench inside it. The only bench I have ever used is the WTC small cylinder bench. And we made homemade wrenches out of 1" plate.

 

[Zrupp]

As for a hyd power I was thinking a guy could use the hyd off of the truck. Just plumb in some remote connections.

 

[StanRUS]

As for a hyd power I was thinking a guy could use the hyd off of the truck. Just plumb in some remote connections.

You can use air powered for the bench and nut buster, capacity 30,000lbs ft. Single action, spring return cylinders. Nut buster requires moving the single acting cylinder from one side to the opposite side, e.g. loosening, than tightening.

Google Tuxco, they make Cat's current repair benches.

Building inside of a trailer, NOPE! You need access from above and at least one side.

 

[StanRUS]

Found example video

Pneumatic (air) torque multiplier is manufactured in the UK, 20,000Nm = approximately 14,750lbs ft
For low volume usage, NO requirement for multi thousand dollar torque multipliers, IMO.

 

[mikebramel]

I doubt that 15,000 ft lbs would take that cylinder nut off if it was it's first time

 

[StanRUS]

I doubt that 15,000 ft lbs would take that cylinder nut off if it was it's first time

Another example video, fast forward to 2:33...CAT 6V4948 repair bench with Sweeney 8100 torque multiplier, capacity 12,500lbs ft.
Almost NEW excavator with damaged cylinder rod close to the eye...Dealer guarantees repacking (reseal) in 4hr and re-rod in 8hrs.
CAT 6V4948 is obsolete, mainly because Sweeney was purchased by Dover (doubled price) than Hydratight again almost doubling price.

 

[nowing75]

I'm looking at hydraulic tork wrenches and thinking of incorporating it into a portable set up.

 

[Junkyard]

Nowing, I've thought the same thing. Also, I've seen a setup using a cylinder and a circle plate with holes in it for the really stubborn nuts. Their wrench quit at 4,300 ft lbs. Mine is good to 7,400 so I don't think I'll need that. Sure would take the work out of the big cylinders!

 

[StanRUS]

Tuxco's economy bench, 25,000lbs ft torque with torque read-out gauge. You can fabricate you own hydraulic torque nut buster way cheaper than purchasing a hydraulic torque wrench.
http://www.tuxco.com/products/HCS-25-LS.pdf

 

[StanRUS]

Testing Tuxco 5,000ft lb nut runner, cylinder develops 60,000ft lbs
https://mulpix.com/post/778217684887297234.html
DIY, consider single cylinder nut buster requires heavier structural components, e.g. bench frame, supports etc...compared to 'twin cylinder' nut buster. Reason? One 4" diameter cylinder requires twice as much operating pressure per square inch compared to Two 4" cylinders...

MSD nut buster: retrofitted to local Cat dealer's obsolete Wolf bench
http://www.ms-d.com/ Few ideas for Catfixer

 

[StanRUS]

Exceeded editing time.
IF both cylinders single or twin setups have the same leverage, e.g. lever are lengths than twin cylinders require 50% less operating pressure. Less pressure requires less horsepower!
Twin cylinders applying torque to a ratcheting ring also reduce reactive torque by forming a couple; does not require a heavy supporting framework compared to a single cylinder design.

 

[StanRUS]

Air powered torque multiplier shown in the Italian video above BMCI-20 is manufactured by Norbar Mod PT11. MTS, 2 1/2"
https://www.norbar.com/en-us/produc...-diameter/category_multid/117/range_multid/21
Mod PT18. MTS 221,500lbs ft / 300,000Nm cost more than most homes

 

[jjfarms]

I copied local Cat dealer's bench, approximately $2500.00 for steel, double action hydraulic cylinder, hose reel etc plus $1800.00 for hydraulic power pack. You'll also need a overhead jib-crane or you could use a service truck crane to pick up and rotate the cylinder rod-head and cylinder barrel, required when honing and removing the head assembly off of the rod.

There are 2-3 benches for sale in S. Cal if your interested.

Any leads or tel #’s on the benches for sale in Cal?

 

[StanRUS]

Any leads or tel #’s on the benches for sale in Cal?

SOLD out of state

 

[Randy88]

I have to ask, if anyone has built a twin cylinder nut buster, show us how you did it and please explain to us how you got it to work.

I've got quite a few cylinders to rebuild and have been tossing around the idea of building a bench myself, but only ever been around single cylinder units.