QTZ80 External climbing Tower crane 8t max.load for high building construction

Description:

    External climbing tower cranes are a modern form of balance crane that fixed to the ground on a concrete slab (and sometimes attached to the sides of structures), tower cranes often give the best combination of height and lifting capacity and are used in the construction of tall buildings.
    The base is then attached to the mast which gives the crane its height. Further the mast is attached to the slewing unit (gear and motor) that allows the crane to rotate.
    On top of the slewing unit there are three main parts which are: the long horizontal jib (working arm), shorter counter-jib, and the tower head.
 

Specifications:

Our advantage: 

1. Seven years of experience in supplying new external climbing tower crane with ACLASS Brand.
2. Export to more than 20 countries with CE/ISO/GOST/CU-TR Certificates.
3. Stationary/Traveling and internal climbing type tower crane are available
4. Impeller blasting/rust protection paint
5. Advanced painting process
6. Strict and experience welding line
7. New designed mast, can be used to Internal and external climbing tower crane
8. Well known brand mechanism system, Schneider Electronic control system, Jjiangte and Jiuhe motor
9. Engineers available to service machinery overseas.
10. For warranty, it is 12 months from the B/L date. What's more, some free easy worn spare parts are provided together with the crane.

Components:

Tower cranes are used extensively in construction and other industry to hoist and move materials. There are many types of tower cranes. Although they are different in type, the main parts are the same, as follows:

1. Mast: the main supporting tower of the crane. It is made of steel trussed sections that are connected together during installation.
2. Slewing unit: the slewing unit sits at the top of the mast. This is the engine that enables the crane to rotate.
3. Operating cabin: the operating cabin sits just above the slewing unit. It contains the operating controls.
4. Jib: the jib, or operating arm, extends horizontally from the crane. A "luffing" jib is able to move up and down; a fixed jib has a rolling trolley that runs along the underside to move goods horizontally.
5. Hook: the hook (or hooks) is used to connect the material to the crane. It hangs at the end of thick steel cables that run along the jib to the motor.
6. Weights: Large concrete counterweights are mounted toward the rear of the mast, to compensate for the weight of the goods lifted.