1. Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!
  2. ALL NEW MEMBERS READ THIS FIRST!! Thank you for joining Heavy Equipment Forums! If you are new to forums we communicate with "Threads", please search our threads to see if your topic may have already been answered and if not then click "Post New Thread" in the appropriate forum. This will allow all of our members to see your question and give you the best chance to be answered. After you've made a number of posts you will graduate to Full Member status where you'll see a few more privileges. Following these guidelines will help make this the best resource for heavy equipment on the net. Thanks for joining us and I hope you enjoy your stay!!

Hydraulic cylinders

Discussion in 'Tractor/Loader/Backhoes' started by Willie B, Mar 28, 2020.

  1. Willie B

    Willie B Senior Member

    Joined:
    Jan 3, 2016
    Messages:
    1,456
    Occupation:
    Electrician
    Location:
    Mount Tabor VT
    The subject has been hashed over for years. Hydraulic cylinder rods are an item that takes a beating on a backhoe. A number of them in my history have needed replacement. I have a big lathe, but haven't attempted to make one.

    My latest is a stabilizer cylinder. Seth & I set out to repack one that was leaking, when it was difficult to dismantle, I checked with a straight edge, sure enough, it was slightly bent.
    I wasn't able to straighten it with a 20 ton press.
    Case no longer offers the part, only a whole cylinder, at a price I don't like.
    Found a rod on Amazon, of all places, ordered it. I don't know if it'll arrive, or disappointment awaits.

    I'm toying with making one I anticipate welding the pin end on is straightforward. I presume they aren't welded all the way to center, but I'm not sure.

    The female thread is my greatest concern. It's described as 1" extra fine thread. Whether my limited lathe skills are equal to the challenge, I don't know. Has anybody here ever done it?
     
  2. Blocker in MS

    Blocker in MS Senior Member

    Joined:
    Nov 6, 2019
    Messages:
    785
    Location:
    Mississippi
    It is done all the time at hydraulic shops. Threading would the worst part I think. Some are welded right, but a lot have a couple passes on and call it good until it breaks. We break one of those every now and then.
     
    Ronsii likes this.
  3. Jonas302

    Jonas302 Senior Member

    Joined:
    Jan 4, 2015
    Messages:
    640
    Location:
    mn
    Like blocker said done all the time in hydraulic shops If you choose to try it yourself 1"-20 UNEF taps are quite available and would be much easier than single pointing the internal thread I haven't threaded one myself but have welded many eyes on have to take the chrome back a ways champher the end of the rod for penetration and use good welding practices

    Just an example https://www.ebay.com/itm/Greenfield...1f0a005:g:e6sAAOSwZrZcUyKa&LH_ItemCondition=4

    No I have never seen one that was welded all the way to center and a stabilizer cyl isn't subject to shock loads and should be quite easy to make strong enough
     
  4. hosspuller

    hosspuller Senior Member

    Joined:
    Aug 28, 2014
    Messages:
    1,106
    Location:
    North Carolina
    Aren't cylinder rods Chrome plated ?
     
  5. Delmer

    Delmer Senior Member

    Joined:
    Jan 4, 2013
    Messages:
    6,045
    Location:
    WI
    Yes? you can order hardened chromed rod in all the standard diameters, just cut the threads etc. on the end and weld the eye to the other end.
     
    56wrench likes this.
  6. Nige

    Nige Senior Member

    Joined:
    Jun 22, 2011
    Messages:
    14,830
    Location:
    G..G..G..Granville...........!!
    Bigger press.? 20 tons seems awful small for a solid rod, even a relatively small-diameter one. 50 or 100 tons would be more man for the job. Is there no machine shop in your area with one in that size range.?
     
    56wrench and Jonas302 like this.
  7. Willie B

    Willie B Senior Member

    Joined:
    Jan 3, 2016
    Messages:
    1,456
    Occupation:
    Electrician
    Location:
    Mount Tabor VT
    I'm not aware of a machine shop for hundreds of miles. Eastern VT was, for 100 years the machine tool capitol of the US. Best I can say ALL have closed, lots of vacant industrial buildings. A few small shops in, or grown from someone's basement, but even the quill from a large drill press, I had to send out of state to get repaired. That shop has now closed. The one machinist I knew there has taken a very few machines & moved to a small space.

    Hydraulics shops are few, and their backlog of work is enormous! I've talked to a few, best answer looks like a month out.
    I did some searching, found the part on Amazon. The Amazon vendor is the same I tried repeatedly Friday to reach. I ended up ordering from Amazon. No telling if they actually have it to sell.
     
  8. Nige

    Nige Senior Member

    Joined:
    Jun 22, 2011
    Messages:
    14,830
    Location:
    G..G..G..Granville...........!!
  9. Willie B

    Willie B Senior Member

    Joined:
    Jan 3, 2016
    Messages:
    1,456
    Occupation:
    Electrician
    Location:
    Mount Tabor VT
    CT is a couple states away. To you, imagine Spain! But I'm not above an adventure! How might I contact him? Thank you!
    Bill
     
  10. Ronsii

    Ronsii Senior Member

    Joined:
    Jun 26, 2011
    Messages:
    3,544
    Occupation:
    s/e Heavy equipment operator
    Location:
    Western Washington
    Looks like he's on here all the time, shoot him a PM.
     
  11. Theweldor

    Theweldor Senior Member

    Joined:
    Feb 17, 2018
    Messages:
    461
    Location:
    Western, NY
    Threading on a lathe is not that difficult. The key component is if you have a threading dial on your lathe and access to a Machinery Handbook. It will give you all the information that you need for major and minor diameter.
     
    56wrench likes this.
  12. Labparamour

    Labparamour Senior Member

    Joined:
    Sep 6, 2013
    Messages:
    489
    Location:
    Washington
    9AEE3D7E-88FA-4A99-B6B7-BD69467FD589.jpeg E1C7760E-8E20-4504-8E1F-0DCD6FC4F384.jpeg http://www.scotindustries.com/

    I frequently pass their warehouse on I-5 in Washington.
    I see they have locations closer to you.
    Maybe if your Amazon purchase doesn’t work.
    Not sure if they have minimums, etc.

    I had a hydraulic shop turned and threaded a barrel for me and I rewelded the end with boss on it.
    They sold me an aluminum blank and I turned a new piston and seal shop fixed me up with those parts.
    My rod didn’t get bent but the barrel
    Got dinged and put a flat on the piston.
     
    John C. likes this.
  13. Willie B

    Willie B Senior Member

    Joined:
    Jan 3, 2016
    Messages:
    1,456
    Occupation:
    Electrician
    Location:
    Mount Tabor VT
    Thanks everybody. My last was a blade angle cylinder on a Dresser dozer. The track shoes were 2" wider than stock, had rubbed the barrel of the cylinder when I bought it, but damage was cosmetic. I hadn't owned it long when a C arm pin came out of the underbelly. This allowed the whole blade assembly to move sideways.
    After waiting several weeks for a local hydraulic shop to repair, he said he simply doesn't have time. A huge carbonate slurry plant was filling 4 days a week, and pressuring him to go to six. Several other shops were several weeks out also.

    Extensive searching finally located a new old stock cylinder in California. $2400. Take it or leave it. It arrived defective. With machining I could have made it work, but I felt at that price, it should be right. I asked for a break on the price, they wouldn't budge. They had two more identical in defect to the first.

    Months into it I built a stiff arm to take its place, and used the dozer without angling the blade. Eventually I found the correct barrel at around $400.

    Numerous times I've been at the mercy of hydraulic shops who prioritize their biggest customers. Not complaining, that is the nature of the business. It occurs to me I have most of what I need to fabricate. Maybe I should try my hand at it.
     
  14. Ronsii

    Ronsii Senior Member

    Joined:
    Jun 26, 2011
    Messages:
    3,544
    Occupation:
    s/e Heavy equipment operator
    Location:
    Western Washington
    Get some like sized pieces to practice on first.... words of wisdom from someone who didn't practice the first time :(
     
    RZucker and Jonas302 like this.
  15. Labparamour

    Labparamour Senior Member

    Joined:
    Sep 6, 2013
    Messages:
    489
    Location:
    Washington
    I remember your dozer cylinder.
    You still have the old cylinder around? There’s your scrap to play with.
    Perfect “shelter in place” activity!
     
    Stan580D and RZucker like this.
  16. Willie B

    Willie B Senior Member

    Joined:
    Jan 3, 2016
    Messages:
    1,456
    Occupation:
    Electrician
    Location:
    Mount Tabor VT
    Thanks Ronsii & Labparamour.
    For me, sheltering in place isn't working out all that well. I got customers wanting me to get work done while there aren't people in the way. Others, THE SHOW MUST GO ON!!!! I get calls, people "on hold", had projects in mind for a while, "Lets get it done now."

    We, (Seth & I) were "exposed" last week. Working on a major project in an occupied home of two health care workers, husband in ER at the nearest hospital. He came down with flu? He, his wife, and his elderly in laws, refugees from California are in Quarantine. We, I guess he, haven't been informed as to a diagnoses. I wonder if he was tested. Lots of publicity about not enough tests to go around, then it takes several days to get results from a test.

    I like the notion of practicing on waste material. Drilling a hole, tapping it I'd do before lunch. Something intimidating about hydraulics!

    When Zap was facing shop closing, I mentioned the severe shortage of line boring services & hydraulic re builders. He never responded.
     
  17. Labparamour

    Labparamour Senior Member

    Joined:
    Sep 6, 2013
    Messages:
    489
    Location:
    Washington
    Dang! You and Seth stay healthy!!
     
  18. Ronsii

    Ronsii Senior Member

    Joined:
    Jun 26, 2011
    Messages:
    3,544
    Occupation:
    s/e Heavy equipment operator
    Location:
    Western Washington
    I hear ya' Willie, we are busier than usual with work that must get done to keep things moving at the warehouses plus I get emergency calls from people I know to fix things like water wells that quit working!!!! and theft prevention from tweaker/homeless/scumbags :mad: along with tons of other stuff you just can't put off for a 'more convenient time' o_O
     
  19. Willie B

    Willie B Senior Member

    Joined:
    Jan 3, 2016
    Messages:
    1,456
    Occupation:
    Electrician
    Location:
    Mount Tabor VT
    I spoke to them this morning, Con Equip has the part, I don't know if it has been shipped yet. The guy I spoke to says I should receive it in a few days.
     
    Billrog, Labparamour and Ronsii like this.
  20. NH575E

    NH575E Senior Member

    Joined:
    Dec 30, 2015
    Messages:
    357
    Occupation:
    Retired Machinist
    Location:
    North, FL
    Have you ever looked at cylinder offerings from Magister Hydraulics? I bought some 2" cross type and modified them to fit my JD loader that worked out okay. I haven't tried any larger ones from them but not ruling it out.

    Next time I need a cylinder I plan to look at the Prince offerings too