This is for a school project, we need a crane with yydraulics to pick up things for science.. Any ideas ?!
The first (visible in the first link) is the boom angle pistons. These are mounted to the rotating section and to the boom. The second hydraulics are inside the boom arm. The boom actually has several sections that telescope (like a motorized car antenna). Each section has a hydraulic piston that pushes the section out of the end of the boom. The cable that hangs off the end is wound onto a large cable reel that is on the rotating section. This cable reel is also gear driven, but is usually just run by two standard spur gears. E-mail me with more details as to how big you want this project and I can help out more from there. Make sure your account is set up to allow e-mails.
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