Top Slewing Huge Hammer Head Tower Crane qtz7550 25T Load 75M Jib

Performance parameters

a. Max. jib length: 75m
b. Max. lifting capacity 25t
c. Max. hoisting capacity at jib tip: 5.0t
d. Max. lifting moment 50000 t.m
e. Max. free-standing height: 73m

f. Max. working height of anchored crane: 200m
g. Types of tower crane: stationary crane with embedded outriggers, stationary crane with embedded bolts, stationary crane with under-frame and mobile tower crane.

Specification

Features
Durable, safe and low-maintenance cranes live up to the highest manufacturing standards. They are durable, operator-friendly, safe and have low maintenance requirements.
Quality materials for durability
Our components are traceable back to original premium-quality manufacturers, ensuring that they can easily be replaced when necessary. The quality of our components assure good resistance to fractures under conditions of high loading and low temperatures.
Quality steel mill-certified to European EN standards.
High-quality components from suppliers represented worldwide.
Protected: For safeguarding, all components are fitted into housing of the highest quality. Fully enclosed motors - IP55 - ensure long lasting motor insulation.
Easily identifiable: Cables and components are numbered or marked for easy identification, reducing maintenance time and costs.
Efficient: Virtually all internal electrical installation is done using multi-plug connections which reduces erection time.

Safety devices:
1): Hoist height limit
2): Over speed limit
3): Over load limit
4): Lifting moment limit
5): Slewing angle limit

7): Obstruction light (tip of jib, tower head)

8): Wind lock device.

The process features

1) Automatic submerged arc welding is adopted in the main section limbs and chord boom. It has high thermal efficiency, high penetration, high production efficiency, while reducing the pores and crack defects, increases the weld strength and the beautiful appearance.

2) We adopt carbon dioxide gas welding; it has heat concentrated, a small welding line, high strength and resistance to rust and crack. it can reduce tress and deformation, it has high strength and resistance to rust and crack.

3) Shot blasting is used for masts to strength the hardness of steel surface; enhance the paint adhesion and prolonging its life

Pictures

Jinan Avitt International Trade Co., Ltd​- European Technology Tower Crane

     is a professional manufacturer and exporter of Construction Machinery in China, owning CE, ISO and GOST certificates, with high quality products and competitive price.

     Our items are praise with good quality and excellent after-sale service.

    With more than 20 years experience, our products has exported to many countries, such as Russin, Vietnam, Philippines, India, Thailand, Sri Lanka, Bangladesh, Korea, Russia, UAE, Iran, Algeria, etc.

    QTZ series of tower cranes, ranging from QTZ40 to QTZ315 (Max Load=4T-20T). With working radius varying from 30m to 80m, QTZ tower cranes are famous for their large operating ranges, varied working methods and wide uses.

    Equipped with all necessary safety devices, these cranes show a good speed-control capacity, high work efficiency and satisfactory operating stability.

    QTZ tower cranes can be widely used on the construction of high-rise buildings, industrial buildings, as well as cooling tower.

    Our products are with high price-quality ratio and competitive price for you to choose.