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Thumb Design

Discussion in 'Compact Equipment Attachments' started by Squizzy246B, Aug 20, 2006.

  1. Squizzy246B

    Squizzy246B Administrator

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    Occupation:
    Digger Driver
    Location:
    Perth, Western Australia
    Thanks Dwan:thumbsup
     
  2. Dusty

    Dusty Charter Member

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    S.E PA
    i like the longet pin ideal less welding
     
  3. Squizzy246B

    Squizzy246B Administrator

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    Bump

    Thought I'd bring this one up again to see if anybody else has some good thumb pics
     
  4. digger242j

    digger242j Administrator

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    You're just a glutton for punishment, aren't you?

    For anyone reading this thread for the first time, and who has bothered to go back and read through all the silliness of page one, (because, I posted the pictures in their own thread, but neglected to point out that thread), here's the link to the thread containing pictures of the thumb installation we were discussing there:https://www.heavyequipmentforums.com/Forum/showthread.php?p=17832#post17832

    It would probably work best to keep any further replies to Squizzy's latest post, in this thread.
     
  5. Squizzy246B

    Squizzy246B Administrator

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    No....you see, we are not interested in your crappy static thumb...you took too long to post those pics and tried to Hi-jack my thread in the doing!:D

    We are after "Real" thumbs you see...hydraulics and everything.:cool2

    See I know what you were up too..:nono

    https://www.heavyequipmentforums.com/Forum/showthread.php?t=3472
     
    Last edited: Nov 11, 2007
  6. digger242j

    digger242j Administrator

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    I will have you know--that crappy thumb is not static at all. In the stowed position, it moves back and forth a good half to three quarters of an inch, every time you move the dipper, as evidenced by the accompanying clanking and clunking all damn day long. So there. :p
     
  7. Squizzy246B

    Squizzy246B Administrator

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    Digger Driver
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    I can see how that would be a problem for a personage in full command of their faculties.....however, in your case......:cool2
     
  8. nedly05

    nedly05 Senior Member

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    We have the same thumb on our 70SR, the USA deal. It works well, takes a pounding, but the slapping and banging when its stowed:Banghead AHHHH. I welded a big spring behind it to tame it down, but it just wore the spring out:Banghead Ours was $776 delivered from NC, and was welded on on a Saturday for free (by me). For the money it is great, but the slapping and banging.........
     
  9. catmandu

    catmandu New Member

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    Mar 22, 2010
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    Location:
    Starke, FL
    Asking for some good advice on purchasing a Thumb (non-hyd) for my CAT 304 CR.

    I use a 18" bucket W/four teeth.
     
  10. 245dlc

    245dlc Senior Member

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    There is one or two alternatives that don't require any welding, I think this is the idea that I'm going to go with when I buy my first machine. I like having a thumb when I'm doing demolition or bush clearing type of work, but when I'm using a tilt bucket or doing ordinary digging work I don't really like having a thumb there I find it excessively heavy and can add a lot of unwanted weight when reaching out with a heavy bucketful. So I found these alternatives:

    http://www.rocklandmfg.com/excavator/krypto_klaw.htm

    http://www.nyemanufacturing.com/excavator/ex_buckets/grpl_bkt_zoom/grpl_bkt.htm

    http://www.helac.com/construction/powergrip.asp

    A number of years ago I saw a custom made unit like the krypto klaw at work and wanted one right away it has all the advantages of a progressive thumb but you don't have to weld anything on to the stick or have the extra weight penalty of the heavy linkage.