Große Turmdrehkrane

[djlivus 0]

A very tall crane is also potain md 1800 with a hook height of 112.8 meters!


http://www.potain.de/upload/reference/000D...DE_DE_filet.pdf

[djlivus 0]

A very tall crane would have been kroll k-25000, if ever made. First it was supposed to be bottom slewing like kroll k-10000. then , the project was modified , the crane beeing top slewing. The tower mast is 10X10m.

Below is a picture with a kroll k-25000 model. Dimensions are not very accurate-I measured the model with Autocad program.

[S 46 0]

... and the maximum reach of the K25000 would have been 100m, still able to lift 200 tons there.
Do you know, why Kroll decided to make this crane a top slewing unit ? I only can guess about the total mass which has to be moved and the necessary precision therefor, why they had to abandon the genuine idea of making a bottom slewing crane ( like the 10000 ) on drafting the K25000.

Still, to be honest, this is the thirst picture of this crane, that I see.
Do you have more ?

[djlivus 0]

... and the maximum reach of the K25000 would have been 100m, still able to lift 200 tons there.
Do you know, why Kroll decided to make this crane a top slewing unit ? I only can guess about the total mass which has to be moved and the necessary precision therefor, why they had to abandon the genuine idea of making a bottom slewing crane ( like the 10000 ) on drafting the K25000.

Still, to be honest, this is the thirst picture of this crane, that I see.
Do you have more ?

In a cranes today magazine issue is said new k-25000 is top slewing because of progress in steel technology. I can say you more because I am not an expert in technology. Thirst= first or third?
I have more only one drawing of this crane. If you give me a mail adress I ll sent it to you.

[linaprin 1]

Do you know, why Kroll decided to make this crane a top slewing unit ? I only can guess about the total mass which has to be moved and the necessary precision therefor, why they had to abandon the genuine idea of making a bottom slewing crane ( like the 10000 ) on drafting the K25000.

I think you`re right, next reason could be ability of fixing the tower to the building at greater heights.