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IXXIac
8 months ago

Hello

“Building” starts at 0 meters. Small tower turntables are taken from 3-4 floors up to 25 meters. Top-turning teeth from 25 meters. There are exceptions.

Needle booms are used with growing/climbing cranes and/or if it is narrow on the construction site in inner cities. In addition, you can work with needle booms at more wind pressure or in coastal zones with continuous wind.

ulrich1919
8 months ago

Because this type of cranes (relatively) are easy to install and dismantle.

Aeroplanus
8 months ago

If they work better than cranes on a truck.