ironpride (November 30, 1999 at 12:00 am)

i am driving a leibherr 630 like this 1 atm 40 ton capacity double trolley

CalverWeems (November 30, 1999 at 12:00 am)

Fake!

gabberarndt (November 30, 1999 at 12:00 am)

schön wollte schon immer wissen wie das mit den aufstocken geht

motoxxx4u (November 30, 1999 at 12:00 am)

they make cranes so that they can be set up in sometimes near impossible spots. the tower crane is assembled to a predetermind hight with the use of a crane. the only time you use the climber is when you can't reach the crane with another crane. Also towers aren't meant to be heavy lifters, and that's a lebherr and it's top of the line stuff.

goodoleboy25 (November 30, 1999 at 12:00 am)

The "climber" is a specially designed mast section that acts as a spacer/jacking mechanisim; it holds onto the new mast section and allows it to be rolled into position. It has a 21 foot hydraulic cylinder on each corner that jacks the crane up, workers pull the 20 ft. mast section into alignment and pin it. Note that the crane has to be perfectly balanced while jacking. Thats why the next section is raised & held precisly to ensure the delicate hyd. cyls. are not bent during raising.

drzizas (November 30, 1999 at 12:00 am)

The most fascinating video I've ever seen.

FaRaSHa1234 (November 30, 1999 at 12:00 am)

zay wjhak:D

stopglobalswarming (November 30, 1999 at 12:00 am)

I don't quite understand how they are doing it, but I get that they lift the parts up to near the top, assemble it somehow maybe inside the top piece, and the crane pushes itself upwards?

tangerineviolet (November 30, 1999 at 12:00 am)

I love cranes!

SuicidalLooney (November 30, 1999 at 12:00 am)

That crane doesn't look like it could handle alot of weight looking at the weight balance at the back, also if the arm was put together on the ground that would require alot of space on the ground, it doesn't seem like a very efficient crane.