High-Performance Second-Hand Tower Crane: Flat-Head Design to Lift

• Customization: Available
• After-sales Service: Installation Can Be Guided Remotely
• Warranty: Installation Can Be Guided Remotely
• Model NO.: ZTT7023-12
• Certification: GS, RoHS, CE, ISO9001
• Condition: Used
• Maximum Lifting Height: 200-250m
• Maximum Lifting Weight: >10t
• Installation: Assembled
• Moving Type: Fixed
• Lifting Mechanism: 55kw
• Rotary Mechanism: 2×7.5kw/0-0.7(R/Min)
• Luffing Mechanism: 7.5kw/0-58(M/Min)
• Transport Package: Trucks, Ships, Containers
• Specification: QTP250
• Trademark: ZTT
• Origin: China

Product Description

BASIC PARAMETER
Model	QTP2507023-12
Jib length	70m
Max Load	12t
Tip load	2.3t
Height under hook	60m
Mast Section Dimention	2.0m*2.0m*3.0m(L68B2)
Mast section type	Angle steel (main chord)
Status	Stationary
MAIN COMPONENT OF THE PRODUCE
1)  - 01 set of hoisting mechanism with inverter
2)  - 02sets of slewing mechanism with inverter
3)  - 01 set of trolleying mechanism with inverter
4)  - 1 set of tower head
5)  - 01 set of balance boom (Counterweight with balance arm)
6)  - 01 set of jib 70m
7)  - 01 set of Slewing bracket
8)  - 01 set of telescoping cage complete with pump,cylinder & yoke(hydraulic iol  are excluded )
9) - 1 set of  basic mast section (2.0m*2.0m*7.5m)
10)  -17 sets of mast section(2.0m*2.0m*3.0m)
11)  - 0set of  Anchorages Frame)
12)  - 01 set of  hook
13)  - 01 unit of Standard version cabin(Including Air Condition)
14)  - 0 set fixing angles
15) - Complete electric control system
16)  - Complete electric cable 70m
17) - Complete hoist wire rope 300m

 

When it comes to safety performance, our High-Performance Second-Hand Tower Crane is a marvel of engineering, equipped with advanced safety hoisting modules, such as anti-overrun, anti-slip hook, anti-impact, anti-sway, and anti-hanging, which significantly mitigate safety risks during construction. This robust safety framework forms an unyielding defense line, ensuring secure construction operations. Enhancing these features is the state-of-the-art ZPI intelligent hoisting system, which further fortifies operational safety with its cutting-edge technology. Especially in super high-rise projects, this crane excels in executing lifting tasks with unparalleled stability and efficiency, providing a steadfast guarantee for the project's safe advancement. The operator's experience is seamlessly elevated with the Zhongtian 7023-12 tower crane, featuring a capacious integrated cab designed for optimal comfort. This entails an electrical three-proof environment that protects against moisture, dust, and high temperatures, granting drivers a more spacious and comfortable workspace. This plays a crucial role in heightening the driver's focus and comfort, thereby reducing errors and enhancing operational efficiency. The feedback from the field indicates that operators consistently enjoy a smooth and pleasurable driving experience, attributing to the crane's refined design. In terms of performance, the tower crane's adjustable boom length is adaptable to various construction scenarios. It boasts a remarkable maximum reach of 70 meters, adeptly covering extensive construction areas. With a maximum lifting capacity of 12 tons and a rated torque of 2500KN/m, it addresses the diverse lifting requirements for both lightweight accessories and heavier prefabricated components effortlessly. The crane's independent lifting height reaches an impressive 60 meters, with a rated lifting speed of 1.33m/s and a rated lifting height of 228 meters, ensuring swift and efficient material handling that shortens construction timelines significantly. Our crane's flat-head design, a standout feature, offers unique advantages over traditional tower cranes with tower heads. This innovation facilitates the reduction of lifting capacity requirements for hoisting equipment during assembly and disassembly, achieved through its lightweight unit mass and lower installation height. Compared to other tower cranes of its class, it reduces the maximum installation height by over 10 meters, leading to cost savings and enhanced safety. When multiple cranes are in operation, the height difference between intersecting units is minimized to just 3 meters. This design lowers overall height, shortens installation time, decreases equipment demands, and reduces ballast requirements, while employing a smaller tower body section and undercarriage. The result is an increase in hook's effective height and exceptional space utilization-ideal for projects with unique height constraints such as airport renovations, factories, tunnels, and high-voltage line proximity. The crane's boom is ingeniously engineered with a special connection method, devoid of a tower head and tie rods, allowing for easy and safe disassembly and reassembly section by section. This adaptability enables boom length modifications mid-air to accommodate varying construction demands. In scenarios where truck cranes cannot access sites, our crane's unique boom connection facilitates aerial disassembly and assembly, simplifying both installation and removal processes. The steel structure of the boom boasts long-lasting durability and high safety standards, resilient against alternating vertical and horizontal stresses. This design significantly reduces the risk of fatigue damage, fractures, and weld cracking. Furthermore, the boom's modular design enables seamless interchangeability between flat-head towers of the same series, enhancing boom applicability and usage efficiency.