This is a diesel powered whole tree crane fed shredder with grappling claw / wood chipper.
This video shows an Industrial tree shredder shredding trees into little wood chips. A John Deere 648 H tractor, with grapple, takes the cut trees to the shredder. The crane stuffs the tree(s) into the shredder. The shredder chips the trees into little pieces. The small wood chips are collected in a semi trailer.
This video was made by SchoolFreeware http://www.schoolfreeware.com
The video is 1080p HD and is best viewed at full screen.