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QTZ5008 tower crane is designed by JINAN JIHONG MACHINERY Co., LTD. It makes full use of the grouping technology, composite design technology and finite element analysis technology, which is the newest lifting transportation machinery in domestic and designed with the tower crane microcomputer platform as the tool.

This machine is horizontal arm, truck derricking, and upper-circumgyrating hydraulic climbing tower crane. Maximum lifting capacity is 4t, Maximum lifting torque is 500 kN·m.

The main features of this tower crane:

(1) Performance parameters and technical indexes have reached the domestic and international advanced level. The maximum working range is 50 m, which increases the working space of the tower.

(2) The shape is international popular form, beautiful and generous.

(3) Working mode various, widely using range. It has two working ways, basic fixed and wall attachment. It is suitable for various construction objects. The independent hoisting height is 30 meters, the attached height is 120 meters (a=2) and 60 meters (a=4)

(4) It has high speed, good performance, high efficiency and working stability.

There are many single speed motor and winding speed reducer, which can achieve high speed and heavy load, the maximum speed can reach 65.14 m/min.

Truck derricking mechanism in horizontal arm traction car horns, has a good performance in installation.

By using winding motor rotation, planetary gear reducer and hydraulic coupling, it has high bearing capacity, smooth, reliable working capacity and good ability wind resistance.

(5) Crane arm used rigid dual pull rods, which has good rigidity, small light weight, and small wind resistance, even strength and artistic appearance.

(6) Various safety devices could ensure the machine work safe and reliable.

(7) The hoisting box stands alone and side and has clear view.

(8) It is convenient to use and easy to maintenance.

The deadweight of the machine is 19.4t; the total installed capacity is 25.7 kW. This machine is always applied to large-scale construction of high-tower buildings, like the high-level hotel, the residential building, which is the ideal construction machinery to the building enterprise.