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QTZ series tower crane is a kind of upper-slewing fixed type tower crane. It can be used into every kind of industrial and civil - details see: https://www.machineto.com/construction-tower-crane-qtz50-5010-10103760

Construction Tower Crane Qtz50 (5010)
1. Version: Stationary on fixing angles type
2. Jib Length: 50M
3. Max. Load: 5Ton( 4-fall operation )
4. Tip Load: 1.0Ton( 2-fall operation )
5. Hook Height: 30m( Free Standing Height 30M)
6. Section Size: 1.615*1.615*2.5m ---Q235B
7. Section Quantity: 11 units
8. Power Supply: 380V50Hz/440V50Hz;
9...Structure: 1 set of fixing angels; 11 units split mast sections; Slewing mast; Slewing turntable and cabin with air condition; Counter-jib; 50m jib; 30m electrical cables; 0 set of anchorage frame; With full set accessories and safety protection device, Schneider Inverter, PLC, electrical components and plug connection.
10. Safety Device: 1) Hoist height limit 2) Trolley distance limit 3) Over speed limit 4) Over load limit
5)Trolley moment limit 6) Slewing angle limit 7) Emergency stop button
8) Obstruction light (tip of jib, tower head and counter-jib) 9) Wind lock device

2. Tower crane description:
QTZ50 tower crane Summarize our various series jack-up tower crane successful experience, Absorbing the domestic and foreign latest technology achievements and advanced technology to the development of a new generation of jack-up tower crane. The machine is the crane which has horizontal jib frame, trolley luffing and slewing
Hydraulic jack-up type. The hoisting jib length is 50 meters or 44 meters, Max. Load is 5 tons, rated load moment is 500KN. M. This machine stationary hoisting height is 35 m, Attached hoisting height is 60/120m. The machine working space is large, the small can replace large, Greatly reduced the construction equipment costs. It is a ideal hoisting machinery in construction which can save energy, save steel and reduce traffic.

Tower's rising and add section Adopt hydraulic jack-up, making tower move freely according to the requirement of construction in a certain height range and can stay lifting stability. The driver is installed in the tower top, opening horizon, the driver can operate it comfortably and conveniently.
Tower has various security protection device, including load moment limit device, Maximum lifting weight limit device, slewing limit device and trolleying limit device and so on. So as to ensure the safe operation.
QTZ50 jack-up tower crane have advanced parameters, Reliable performance and good quality. The design thought has not only focused on wide enormous quantity of small and medium-sized construction units requirements, and has Prominent advantage of simple operation and reasonable price. But also can adapt to the high-level housing, top of industrial architecture construction requirements.