Hydraulic cyl questions

[Maninthesea]

I recently purchased these two cylinders at a surplus auction $30 so I could not pass up. I have googled the part number (109384) and look for pictures to see examples of how the ball Is held and to get a good idea what the intended use was for so I can figure out how to repurpose them. I would assume the two fiber bushing looking things clamp inside of a sleeve that has adjustable compression And a grease zirc In the middle of the grease the ball to reduce friction/wear. These would be the cyl mount. The end of the rod on the side of the brass ball is threaded externally so I assume it is what is pushed. Other end is smooth.
thanks in advance

 

[matt_i]

Those look like spare parts from a maintenance department for some very specialized application.

I see a standard double-acting cylinder with a double-ended rod, the ball could be a misalignment coupler to avoid side-loading the rod or designed to interface with another part of the specific machine its intended for.

Hate to say it but unless you know specifically what they are used for and can resell to an interested user with an equivalent need they are probably more valuable used in a piece of metal art.

 

[brownbagg]

tie rod cly

 

[Wrench97]

Government auction in Guam with DoD Demilitarization Codes, I'd bet they were military, probably naval

 

[Maninthesea]

To answer all the above in reverse order
1. Yes Guam is where I am and that’s the auction I picked them up in.
2. I am not an expert but I would think a “tie rod cyl” pushes in either direction and from either end. These cyl only are threaded for attachment at one end. The end on the ball side. The only anchor point for the cyl really is the ball.
3.yes govt surplus. The ball is the attachment point and swivel point of the cyl. I did not get them to try and sell(I would if someone has been looking for them for a specific need). I thought they were worth the risk of $30 and would like to build something with them. Maybe a small dump trailer or a side dump trailer, was looking for original use so I can spitball some possibilitie.

 

[Lassen Forge]

I know we have more than one former Machinst Mates on the board, maybe they'll recognize it and help sus this out. What's the length and diameter on these? Is there a travel stop on the ram or will it come all the way out? is there a pressure rating on the cylinder? That's all clues as to their past.

Whatever it was, the sky's the limit - you may have to make some sort of clamp around the cylincer to attach it to whatever you're planning on attaching the "plain" end...

 

[Maninthesea]

I know we have more than one former Machinst Mates on the board, maybe they'll recognize it and help sus this out. What's the length and diameter on these? Is there a travel stop on the ram or will it come all the way out? is there a pressure rating on the cylinder? That's all clues as to their past.

Whatever it was, the sky's the limit - you may have to make some sort of clamp around the cylincer to attach it to whatever you're planning on attaching the "plain" end...

By memory, Rough dimensions are about an inch or so diameter of the rod. 3” or so OD do the cyl. 4’ overall rod length. I would guess 18” to 20” travel. They are tucked away in my storage container on the land i do not get to all that often So I can’t look for a pressure rating. I am in the process of finishing off a 800 square foot carport so may not get back to them soon.

 

[Maninthesea]

Since I like closure I’ll update on this. Local gov auction had a control board for sale by a company called Hamilton jet. Since I suspected these might be rams for a jet drive I googled. After a little digging I found they are reverse bucket rams. Scroll down a little. On this link.

https://www.hamiltonjet.com/assets/hm-series-brochure-eng-2014-1575949822.pdf

 

[Firebrick43]

I was going to say rudder steering cylinders for a small ship/large boat but indubitably I do believe your correct with the reverser on that large jet drive.

Then I started looking at the brochure closer, and it does both functions. A cylinder that is similar(same?) on the other side on page 7 steers the jet nozzle.