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!!

Wain Roy vs Werk Brau mechanical quick couplers on mini excavators

Discussion in 'Construction Equipment Attachments' started by Kirk Palmer, Jun 4, 2021.

  1. Kirk Palmer

    Kirk Palmer Active Member

    Joined:
    Mar 10, 2020
    Messages:
    28
    Location:
    Jackson, CA.
    I'm looking at buying a new Takeuchi TB240 mini excavator with a mechanical quick coupler. Their standard option is a Wain Roy, but they can also get a Werk Brau pin grabber for an additional $1200, plus the buckets are extra. My question is what are the pros and cons of each setup? My first impression of a Wain Roy is that since the grabber is inside the bucket that will decrease bucket volume which would add up cycle after cycle. And on top of that the buckets just look small to begin with but I don't know if that's an optical illusion because the grabber is inside the bucket instead of mounted up top. On the other hand I would think the bucket breakout force would be greater with the Wain Roy because it's mounted closer to the bucket, decreasing the leverage working against the hydraulics. Am I wrong in the way I'm thinking? I'd appreciate some opinions from people with knowledge and experience working with both these couplers.
     
  2. Tags

    Tags Senior Member

    Joined:
    Feb 19, 2012
    Messages:
    1,236
    Location:
    Connecticut
    The Wain Roy is simple and keeps the bucket pin geometry close to OEM so no breakout force is lost, that’s where the benefits end afaic. It will get loose and wiggley in no time. I’ve had them and I feel on the minis the buckets are undersized and they loosen up too fast. I do have a pin grabber now on a Tak 260 and wouldn’t have it any other way. 1600 hours and it’s tight, the buckets can be put on backwards, and I don’t seem to be short on power. You do need to be aware that the buckets will stick out more and can now hit the boom cylinder guard or possibly the cab when the booms moved all the way to the left. I have a friend that has a Werk Brau pin grabber coupler on a 240 and he loves it.
     
    hvy 1ton likes this.
  3. Kirk Palmer

    Kirk Palmer Active Member

    Joined:
    Mar 10, 2020
    Messages:
    28
    Location:
    Jackson, CA.
    Thanks for the reply. I was watching a video of a brand new, never before used mini with a wain roy setup and the bucket looked a little wiggly. I like the idea of keeping as much bucket breakout force as possible for digging stumps and rock, but I'm leaning towards the pin grabber for overall performance and satisfaction. I think it would be worth the extra cost. It would drive me nuts if the buckets got sloppy fast.
     
  4. gwhammy

    gwhammy Senior Member

    Joined:
    Nov 21, 2013
    Messages:
    349
    Location:
    missouri
    I had a 12,000 lb. excavator with the wain roy coupler. Didn't stay tight no matter what I did. My 18,000 has a hydraulic pin grabber. Works great and easy to make buckets fit as the pin just needs to be in a set area. I would take a wainroy over no quick attach but barely.
     
    Tags likes this.
  5. wattsbackhoe

    wattsbackhoe Member

    Joined:
    Feb 15, 2011
    Messages:
    5
    Occupation:
    Business owner
    Location:
    CA
    A pin grabber also lets you run the buckets backwards if needed. That come in handy sometimes depending on what you are doing.
     
  6. gwhammy

    gwhammy Senior Member

    Joined:
    Nov 21, 2013
    Messages:
    349
    Location:
    missouri
    I've run the bucket backwards a lot more than you think you would. Digging under utilities is easier. Used the five foot ditch bucket as a work platform on the side of a building backwards.
     
  7. suladas

    suladas Senior Member

    Joined:
    Jun 30, 2016
    Messages:
    1,048
    Location:
    Canada
    I would run no coupler over wain roy, sure it would be more of a pain switching buckets, but at least the dahm things would be tight. I finally pulled the trigger and ordered a wedge coupler to get rid of my wain roy, I hate the thing so much. Again this winter I welded in plates to get rid of the slope about 3x to get it good, within 50 hours it's loose again and some shims fell out. Granted I am fairly hard on it tearing out concrete, frost ripping, etc but it's just an awful design.
     
  8. KSSS

    KSSS Senior Member

    Joined:
    Feb 27, 2005
    Messages:
    3,393
    Occupation:
    excavation
    Location:
    Idaho
    I have had the WB mechanical coupler on 2 TB153's over the years. It is a good coupler. As with everyone else, don't even think about the WR coupler. Spend the money, get the WB. WB buckets are excellent and worth the money. My TB257 comes from the factory with a Strickland hyd coupler. They could have done a better job routing the hydraulics, seems to work alright.
     
    Tags likes this.
  9. gwhammy

    gwhammy Senior Member

    Joined:
    Nov 21, 2013
    Messages:
    349
    Location:
    missouri
    If you don't switch buckets often regular pin on buckets aren't bad. The trick is to have a smaller pin to slip in the crowd bracket and bucket. Pick it up and raise the bucket till the main pin lines up. Makes it a lot easier as your alignment is close and you can wiggle the bucket easier. I would spent the money on the pin grabber, you'll be happier.
     
  10. AzIron

    AzIron Senior Member

    Joined:
    Jun 15, 2016
    Messages:
    1,203
    Location:
    Az
    As a die hard wain Roy guy I hate pin grabbers I am to cheap to have a hydralic one nor do I want the weight of a hydralic one and to hell with needing a wrench to change buckets

    As far as shining them just weld a bead or top of the buckets were the coupler pocket sits and that does pretty good at tightening them up yea they get a little sloppy but I have seen pin grabbers just as bad so pick your poison if you dont own wain Roy that's a great reason not to get one

    You not loosing capacity unless the bucket your being offered is smaller the biggest negative is when dirt runs over the top of your bucket fine dust settles into the pin and makes it snug to get out once in a while
     
  11. farmboy555

    farmboy555 Well-Known Member

    Joined:
    Aug 25, 2006
    Messages:
    181
    Occupation:
    Owner Operator
    Location:
    KY
    I have 2 Yanmar’s with pin grabber, be lost without it