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Old 06-26-2009, 06:34 AM   #1 (permalink)
hr3
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Default What is it Called???

I'd like to search for something but not sure what it is call... I hope you guys can help.. I'm looking for the "motor/ piston? used on a feller buncher.. the part that grips the tree before they cut it... I don't think it's a piston it's some sort of motor or something?? Thanks..
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Old 06-26-2009, 06:49 AM   #2 (permalink)
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Default Re: What is it Called???

Google "hydraulic rotator". MikeD74T
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Old 06-26-2009, 08:04 AM   #3 (permalink)
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Default Re: What is it Called???

Valby is a common brand. Northeast Implement in Spencer, New York carries them.
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Old 06-26-2009, 07:25 PM   #4 (permalink)
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Default Re: What is it Called???

Thanks,,, I'll do some searching now... bet there arn't cheap..
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Old 06-26-2009, 07:29 PM   #5 (permalink)
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Default Re: What is it Called???

File:Feller-closeup.jpg - Wikipedia, the free encyclopedia

It looks to be hydraulic cylinder operated.

http://www.deere.com/en_US/cfd/fores...53j/index.html

http://www.youtube.com/watch?v=YA7_rqxyDo0
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Old 06-27-2009, 08:01 PM   #6 (permalink)
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Default Re: What is it Called???

Your right JJ,, I finely found what i was looking for.. now I just need to find out more about them.. It was a hydraulic gear motor that I saw.. Need to check now and see if they are powerfull enough to run a grapple...
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Old 07-02-2009, 09:04 PM   #7 (permalink)
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Default Re: What is it Called???

You want to use a gear motor to operate a grapple? A cylinder will be A LOT cheaper and easier to design.
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Old 07-03-2009, 07:20 PM   #8 (permalink)
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Default Re: What is it Called???

kennyd,,, yepper more money but I'm waiting for my parts to come back from the machine shop.. I'm trying to design / build a duel action grapple,, two moving claws.. It might be easyer to use the motors than to try to get the pistons to articulate enough.. Not sure yet,,as soon as i get the parts I'll play with rods and pipe to see if i can make it do what I want.. The whole thing might be just a hair brain idea anyway..
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