Results 1 to 6 of 6
  1. #1
    Super Member
    Join Date
    Dec 2007
    Posts
    5,221
    Location
    Ohio
    Tractor
    JD 5520, 790 TLB-- Kub L4300, B7800, MX5100

    Default Use smaller or larger diameter hydraulic hose for implement cylinder?

    I am rebuilding an implement that has a typical 8" stroke cylinder to raise or lower the tool (cultivator). The hoses are 10 ft long and I have always used 1/2" hose in the past because that's what I've always seen. It would be nice to use the lighter weight of a 3/8 hose but I'm not sure how the smaller hose would affect cylinder performance. Any ideas on what would happen if I used 3/8" hose rather than 1/2"?
    ******

    May I be the kind of person my dogs think I am,

  2. #2
    Gold Member
    Join Date
    Jan 2012
    Posts
    270
    Location
    Brookshire TEXAS
    Tractor
    LS R4047

    Default Re: Use smaller or larger diameter hydraulic hose for implement cylinder?

    The cylinder speed will drop with the smaller hose but the work preformed, force produced by the cylinder is a function of pressure,which will not be affected.if cylinder speed is not a concern you could use 1/4 inch hose, just keep in mind the larger the bore of the cylinder the slower it will stroke because of the reduced flow.

    Others may be able to set you right , but I'm pretty sure this is correct.

    Hope this helps,
    C-ya
    Scott
    2012 LS R4047 , FEL , Backhoe, kingkutter finish mower,68 " rachet rake, Titan skidsteer 72" root Grapple, JD 145,JD166 ........Dodge 3500 cummins, Kenworth w900l Cat powered ...

  3. #3
    Advertiser kennyd's Avatar
    Join Date
    Jul 2003
    Posts
    11,591
    Location
    Westminster, MD
    Tractor
    John Deere 4110, 455

    Default Re: Use smaller or larger diameter hydraulic hose for implement cylinder?

    1/4" hose would work fine for a 8" cylinder.
    KennyD
    www.boltonhooks.com



    Bolt On Grab Hooks, Weld On Grab Hooks, Specialty Chain Accessories, Specialty Hydraulic Components.

    Simple JDParts Tutorial HERE

  4. #4
    Elite Member Mace Canute's Avatar
    Join Date
    Nov 2006
    Posts
    4,294
    Location
    Saskatoon, Saskatchewan

    Default Re: Use smaller or larger diameter hydraulic hose for implement cylinder?

    It all boils down to velocity of the oil in the lines and that would depend on the volume of the hydraulic pump's output and the cross sectional area of the inside of the line. Have a look here for a basic formula to determine what you would likely need. Hydraulics

  5. #5
    Veteran Member
    Join Date
    Jul 2003
    Posts
    1,993
    Location
    MN
    Tractor
    Ford 960, 7700, TW20, 1720; IHC H, 300; Ollie S77

    Default Re: Use smaller or larger diameter hydraulic hose for implement cylinder?

    Smaller hose will restrict oil flow and heat it up more. That is an issue with lots of oil flow, like an orbit motor or a continuos moving cylinder.

    For a typical 8 inch cylinder not a big deal if you use 1/2 or 3/8. 1/4 inch would work but it might restrict (slow) oil flow so much as to kick out your detent if you have that on your lever - the backfeeding oil would reset the lever to off.

    Myself, I find hose smaller than 1/2 inch does not hold up as well over the years, and needs to be replaced more often around the farm.

    But 1/2 or 3/8, either would be just fine for your use.

    --->Paul

  6. #6
    Elite Member Zebrafive's Avatar
    Join Date
    Aug 2010
    Posts
    2,880
    Location
    South West MI
    Tractor
    John Deere 2030, John Deere 6415

    Default Re: Use smaller or larger diameter hydraulic hose for implement cylinder?

    I agree, smaller hoses will slow cylinder response (could be a good thing) So I would base my choice on how fast I wanted the cylinder to move.
    John Deere 2030 JD 245SL Loader
    John Deere 6415 mfwd JD 640SL Loader

Similar Threads

  1. Hose diameter/QC diameter question
    By nickel plate in forum Hydraulics
    Replies: 4
    Last Post: 12-23-2010, 12:38 PM
  2. Snow Equipment Owning/Operating Larger 2WD vs Smaller 4WD for plowing snow
    By jedon in forum Snow Removal
    Replies: 18
    Last Post: 07-06-2008, 08:39 PM
  3. Hydraulic hose diameter
    By mhalla in forum Owning/Operating
    Replies: 7
    Last Post: 01-24-2005, 07:40 PM
  4. Hydraulic hose diameter
    By mhalla in forum Hydraulics
    Replies: 7
    Last Post: 01-24-2005, 07:40 PM
  5. Tires Any disadvantage to using smaller diameter tires
    By froggy in forum Owning/Operating
    Replies: 13
    Last Post: 09-07-2004, 11:58 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2013 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.