L68B1 Mast Section There are two types of jack-up attachment derrick, the internal climbing and the attached Derrick
At present, the self-elevating attached tower crane can be divided into two types, derrick and attached tower crane. The function of one 40t/m internal climbing tower crane is equal to that of one 80t/m attached tower crane. Therefore, it is economical and reasonable for the construction unit to choose the internal climbing tower crane in order to save one-time investment, the internal climbing tower crane is used only when the building shape and the surrounding space are unfavorable to the external attached tower crane. However, our country's construction, design and construction is seriously out of touch, request the design unit to change this to change that is not easy, especially dealing with foreigners more troublesome. Don't want to cause so much trouble, especially in the current seller's market climate.
L68B1 Mast Section
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