The boom angle of the large luffing tower crane is between 17 and 83 degrees, which greatly broadens the capacity and working range of the equipment. Compared with the horizontal arm tower crane, the large elevation angle of the boom is equivalent to increasing the height of the tower body, and the effective extended working range is almost a hemispherical space with the boom length as the radius. This is of great significance for the construction of the main structure and the hoisting of the towering components on the main structure.

1.Crane performance

? Max. jib length: 40 m;

? Max. lifting capacity 2.9 t;

? Max. hoisting capacity at jib tip: 2.2 t;

? Max. lifting moment: 145.98 t.m;

? Max. free-standing height: 35.92 m;

? Max. working height of anchored crane: 153.52 m;

? Hoisting mechanism power: 24 kW; drum volume: 440 m;

? Luffing mechanism power: 30 kW;

? Trolleying mechanism power: 5.5 kW;

? Erection method: outrigger stationary, chassis stationary.

2.Electrical control system

With PLC control, the electrical control system enjoys better reliability and safety. Produced by professional manufacturers with advanced foreign technology, the electrical elements feature service lives that are 3 or 4 times longer than that of domestic products, less faults, easy maintenance and repair as well as reliable operation.

3.Technical features

? The crane boasts of multiple operation modes and wide application;

? The complete machine adopts internationally well-received beautiful shape;

? The crane features high working speed and excellent speed regulation performance. Stepless speed regulation by frequency control, the world's most advanced solution, is adopted for the trolleying mechanism and slewing mechanism, thus ensuring more stable and reliable operation ;

? The cab is independently installed externally with good vision and large inner space, thus offering a good working environment for operators;

? A variety of safety devices are equipped, which are all mechanical or mechatronic products that are applicable to severe working conditions, so as to ensure the tower crane's reliable operation.

Electrical control system
With PLC control, the electrical control system enjoys better reliability and safety. Produced by professional manufacturers with advanced foreign technology, the electrical elements feature service lives that are 3 or 4 times longer than that of domestic products, less faults, easy maintenance and repair as well as reliable operation.