Used Hydraulic Cylinder Bore Size?

[EXCALIBER]

I bought a used tipper cylinder off a payloader and am wondering if there is any way to tell how big the bore is on this without disassembly. The rod seems to be about 3 inches but having a harder time figuring out bore size on this.

 

[EXCALIBER]

 

[EXCALIBER]

 

[triptester]

The bore size will be about 1/2" smaller than the outside diameter of the in the middle. In 3 inch and larger cylinders the bore sizes are in 1/2" increments.

 

[Patrick62]

I am gonna say, huge is about right.
agreed, the wall would be 1/4" or so, and the overall of that thing looks like about 6", so I would say that it likely is 5 1/2 bore.

It would not be terrible on speed if you can get 22gpm pump on there. Estimating 20" stroke? You would get 26 tons at 2250 psi.
I am sort of preferential of a 5" cylinder around here.

If you are going to go with that, get the biggest, knarliest heaviest hunk of I beam you can find. 52000 pounds of push would tend to stress things a bunch. Use that tonnage to your advantage with a 3 or 4 way wedge

 

[olympyk_999]

I am gonna say, huge is about right.
agreed, the wall would be 1/4" or so, and the overall of that thing looks like about 6", so I would say that it likely is 5 1/2 bore.

It would not be terrible on speed if you can get 22gpm pump on there. Estimating 20" stroke? You would get 26 tons at 2250 psi.
I am sort of preferential of a 5" cylinder around here.

If you are going to go with that, get the biggest, knarliest heaviest hunk of I beam you can find. 52000 pounds of push would tend to stress things a bunch. Use that tonnage to your advantage with a 3 or 4 way wedge

I'm thinking 5 or 5 1/2" bore...the rear cap look a little bigger than the cylinder... hard to tell...
but I'm wondering how you know he's building a splitter with this??

 

[EXCALIBER]

Well the oustside diameter seems to measure 6 inches, but that cap with the 3 bolts in it only measures 5 inches? Would they really make the wall thinkness half an inch?

 

[olympyk_999]

Well the oustside diameter seems to measure 6 inches, but that cap with the 3 bolts in it only measures 5 inches? Would they really make the wall thinkness half an inch?

the "cap" with the 3 bolts looks like a removable plate to change the rod wiper easily...the actual gland cap is threaded onto (over) the cylinder, which is the largest diameter part there...

 

[midwest_170]

Measure the circumference of the cylinder with a flexible tape or a string and tape measure. Divide that number by pi to get accurate od, the cylinder will have roughly a 3/16" wall.

 

[muddstopper]

Whats the pressure rating of the cyl?????I have seen 1/2in cyl walls, and I have seen some cyl the walls didnt look more tha 1/8in.
I bought some payloader cyls off craigslist. Pressure rating for the machine was 3600. Outside dia is over 5in but the bore is 4.5 in and rod dia is 2.5, pin size 2inch. 1 in ports. These cyl where designed for a w20 case payloader. If you know what loader the cyl came off of, you can probably look up the spec to get the right measurements.

 

[EXCALIBER]

Well I know the rod is 3 inch, and outside diameter is 6 inch, so if that cap is just for the wiper seal then it's a 5.5 inch cylinder. I don't know what make or model loader it came off of or what pressure it's rated at. I think the ports are 3/4 or 1 inch. I have a 13 hp motor so now don't what pump to run. I would like to run like a 20 gpm single stage but then would need larger engine. I could run pump off my tractor but those pumps are only 2250 psi. How much pressure is really needed using 4 and 6 or 8 way splitter wedge. Mostly elm and cottonwood around here.

 

[midwest_170]

What tractor do you have? Most smaller or older tractors have small pumps. Check tractordata.com to find out how much flow your pump has.

 

[olympyk_999]

What tractor do you have? Most smaller or older tractors have small pumps. Check tractordata.com to find out how much flow your pump has.

think hes talking pto pumps...not the remotes

 

[Patrick62]

13hp engine would be marginal on a 22 gpm two stage pump. With a 5.5 inch bore your PSI needed is less to "get the job done".
Cottonwood is difficult and stringy. Not a bunch of pressure needed but you will have to full stroke the thing a bunch. Elm would be about the same, but harder. Splits good frozen solid..

I am running a 22gpm pump on a 15hp Kohler, and it is capable. I would think that a 13 would work.

Re-read my previous post. You can get 26 tons outta the thing, that should be enough to break blocks, bowling balls, boulders, and anything else you can hoist up onto the beam.

 

[EXCALIBER]

Yeah I figure just over 26 ton at 2250 psi pump and over 35 ton with 3000 psi pump. I just wonder how many times it would go into the high pressure low volume side? Tractor is 2011 TYM and was thinking pto pump not remotes.

 

[Patrick62]

Both of my splitters are 5 inch bore with a 3 way wedge. They don't often drop into "creeper mode". Red splitter has gauge on it, and it rarely shows more than 500 psi on it. I would not be afraid to put 2250 on that cylinder.

build the machine! go for it. nothing ventured, nothing gained.

 

[EXCALIBER]

What happens to the cylinder if you put too much pressure behind it? I see some wheel loaders are rated at 2250, some at 3600, and others at 4k. Does the cylinder just balloon out? I have a 12 inch I beam started with a wedge similar to a tw6 and basically using the same wedges more or less. There is 10 tons of difference between the 2250 psi pump and the 3000 psi pump. perhaps find a 4 cylinder engine out of a car and a different pump to run it idk still up in the air as to what is overkill or not.

 

[triptester]

The ratings of hydraulic components are the SAFE operating pressures. Hydraulic components are capable of withstanding much higher pressures before bursting. Pumps do not usually have a builtin relief system and are capable of producing pressures high enough to destroy themselves.

 

[Fourced]

I have a 6" cylinder and I am running a single stage pump that moves 25 gal/min with a 13 HP Honda. (I misspoke, I did have a 25 gpm pump on it but the honda did not like it) I rarely see over 5-600 psi when splitting unless its a knarly chunk.

 

[olympyk_999]

single stage pump that moves 25 gal/min with a 13 HP Honda

what planet are you from?... on earth it takes around 1HP per GPM at 1000 psi