Hydraulic cylinders

[ejensen]

Why did manufacturers of equipment use tie rod hydraulic cylinders? My case 320 TLB has all tie rod type cylinders

 

[Jim.ME]

Easier to do maintenance on than welded, they can be completely disassembled and all parts including the barrel are able to be replaced without the issues of welded cylinders. I think tie rod cylinders are more standardized across manufacturers than other cylinders so finding a replacement can be easier if needed. Now many cylinders are designed and built for a given machine function by each manufacturer. So if you need a cylinder that fits right you have to buy that cylinder.

 

[ejensen]

Jim,
I would certainly agree with maintenance on rod type cylinders I would think they would be more costly to make. I think most of new construction equipment use welded cylinders. All the cylinders on my 1957 case 20 are tie rod type and have been rebuilt. I thought it had something to do with hydraulic pressure 1500 lb/in is hydraulic operating pressure on our 320.Someone told me newer backhoes operate with 3000lb/sq in in their hydraulic systems

 

[Jim.ME]

(quoted from post at 19:41:00 12/29/19) Jim,
I would certainly agree with maintenance on rod type cylinders I would think they would be more costly to make. I think most of new construction equipment use welded cylinders. All the cylinders on my 1957 case 20 are tie rod type and have been rebuilt. I thought it had something to do with hydraulic pressure 1500 lb/in is hydraulic operating pressure on our 320.Someone told me newer backhoes operate with 3000lb/sq in in their hydraulic systems

I know there are companies making tie rod cylinders good for 5000 psi working pressures, and likely some even higher.

it is likely easier to design a welded cylinder to fit into a smaller space than a tie rod cylinder as the ends have to be larger than the barrel to allow for the tie rods.

 

[Lavoy]

Cheaper than a welded cylinder.
Lavoy

 

[ejensen]

Lavoy,

That is interesting.

 

[ejensen]

Jim.
Newer backhoes seem to have a lot more hydraulic pressure for their backhoes than my older case
320

 

[ejensen]

Jim,
I used a friend?s 455 ford backhoe. Hydraulics for hoe and loader very powerful compared to my 320

 

[Jim.ME]

(quoted from post at 23:25:19 12/29/19)
Jim,
I used a friend?s 455 ford backhoe. Hydraulics for hoe and loader very powerful compared to my 320

It should be. The unit weighs about twice as much, more horsepower, more hydraulic volume/pressure and I expect the diameters of the cylinders are larger as well if you were to measure them. And there are likely some design geometry differences that affect the application of the hydraulic forces.

 

[ejensen]

HI Jim,
You are correct about weight, power of the 455 ford I used for about 30 minutes. It has only two control levers, my case has 5 levers plus foot controls for the swing. The 455 also is very fast. I just wasn't used to such a machine and was taking it back to my friends place. He drove in my yard and got on his machine and finished digging the 3 foot ditch. World of difference, cylinders all solid, bigger than cylinders on my case, and the rams much larger than rams on my case.He bought it new and his Son has it now a fine machine but big.
Chris
I liked the automatic transmission on the ford 455. It has a 3 cylinder diesel which is very powerful

 

[Case Nutty 1660]

I would hope a Ford made in the 80's or 90's would be faster and more powerful than a 34 hp 320 made in the late 50's lol

 

[ejensen]

Case Nutty,
My only experience with a newer backhoe than my 320 was the ford 455. All my equipment is very old.My last ford pick up was a ford 1974 F100. We bought a new F150 in 2016. Probably same situation as a ford backhoe 80's or 90's.
Do you collect case TLB tractors? Think You told me you have several
Happy New Year
Chris

 

[Case Nutty 1660]

I do have a number of them yes, I use them on my farm and lot cleaning biz,, I also had a trenching biz for about 7 years,, I used my 420B, a 580E and 580SL for hoes then and a DH4B Case trencher, which I still have,, the E and SL I got rid of as I did not need them any more,, should have kept the 580SL 4x4 really,, I have since added a hoe attachment for my 580CK, and a 680E to the fleet, I have five Case crawlers also,, and a few Case loaders,, do not even get me started on the fleet of AG Case equipment I have lol my Farm is 99% all Case equipment,, not red cih stuff but Real CASE machines,, red does not fit for me at all,, here is my latest purchase I got this fall fter looking for almost 40 years since I setup the first one in 1971

 

[ejensen]

Case Nutty,
Nice equipment!!! Thanks for sharing
Chris

 

[VicS]

I have turned my 480E up to 3000 psi. Cold. With a new pump. It is quick. I had a tie rod cylinder on my thumb. It couldn't take it. Ordered a welded cyl from Northern. It can.

 

[ejensen]

Vics,
3000psi is a lot of pressure but I imagine your hoe bucket has a lot of power when digging. The 455 ford TLB I used briefly had a lot of power when digging with the bucket and would break roots when removing stumps. I watched my fried use his 455 to dig out stumps--He put a 12 inch bucket on. It may have had 3000 psi
My case 320 does very well when digging ditches but doesn't have the power at the bucket to break roots. I am sure I would bend the ram for the bucket if I tried to break roots. I remove the dirt around large roots with the hoe then cut them off with my chainsaw. Put a chain on the roots and pull them out with out TD6 dozer. Always a pleasure to talk with You and others on the forum. Members willingness to share information is greatly appreciated by me.
Happy New Year, Chris