1.Performance parameters of Tower-Crane-QTZ4208-4T: performance parameters and technical indexes reach both domestic and international advanced level.

? Max. jib length: 42m;

? Max. lifting capacity 4t;

? Max. hoisting capacity at jib tip: 1;

? Max. lifting moment 480 t.m;

? Max. free-standing height: 30m; Max. working height of anchored crane: 120m;

? Hoisting mechanism power: 15/15/5.4 KW; rope capacity: 320m;

? Slewing mechanism power: 3.7KW

? Trolleying mechanism power: 2.2/1.5 KW

? Types of tower crane: stationary crane with embedded outriggers, stationary crane with embedded bolts, stationary crane with under-frame and mobile tower crane.

2. The Tower-Cranes-QTZ40 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 Tower Cranes boasts of multiple operation modes and wide application. The crane can work in different forms: stationary crane with embedded outriggers, stationary crane with under-frame, stationary crane with embedded bolts and crane anchored to wall, thus being applicable to various construction projects.

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

? The crane features high working speed and excellent speed regulation performance;

? 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.