Lowest Price! Construction Structure Building Tower Crane Comansa Mast Section

• After-sales Service: Available
• Connection Form: Bolt Connection
• Construction Member: Steel Beam
• Grade: Carbon Structural Steel
• Molding Method: Cast Steel
• Residential Wall Structure: Connector
• Standard: ASTM
• Steel Type: Cold Forming Sectional Steel
• Structure: Frame Structure
• Application: Building Construction
• Color: Red / Customized
• Releated Word: Hammerhead Tower Crane
• Logistic Method: by Sea / by Truck / by Train
• Load at End Jib: 1.3 Tons
• Mast Section Size: 1.6*1.6*2.8
• Jib Length: 74m
• Transport Package: Container
• Specification: 40′ container
• Trademark: Comansa
• Origin: China
• HS Code: 8426200000
• Production Capacity: 5000PC/Year

Product Description

 

Product Description

COMANSA Tower Crane 21CJ290 With 12 Ton Lifting Capacity For Sale
 

 

Comansa 21CJ290

Flat Top, Tower Crane, Comansa Construction Machinery

The 21CJ290 model is available in two versions with a maximum load of 12 or 20 tonnes. Its maximum radius is 74 metres, and thanks to the COMANSA modular system it has a wide variety of jib lengths, every 4 or 6 metres.

Like the other Comansa flat-top cranes, it comes equipped with a double trolley system with automatic reeving switchover, allowing the operator to choose the most productive option for every situation:

• When the crane needs to move its maximum load, it works with the double trolley
• When the maximum jib-end load is required, the crane only works with the front trolley and at the maximum speed.

To help manage rental fleets and keep structural investments to a minimum, this crane shares jib parts with the 21CM450 and 21CJ290 models, also in the 2100 Series.

The Comansa panoramic cab comes standard equipped in this model, which is exclusively available in Asia, Oceania, Africa, the Middle East and South America.

 

Product Parameters

Among its capabilities, Hera Engineering can claim a high expertise in construction and temporary works engineering, and particularly for tower cranes design and verification. We were recently appointed for the verification of series of tower crane structures for compliance with Australian Standard, which is a legal requirement for importing foreign tower cranes. Among the projects we have worked on, is the verification of a Comansa 21CJ290-12t heavy duty trolley-jib crane, which required complex wind and dynamic loads calculations and a detailed structural analysis model of the crane structure.

TECHNICAL FEATURES 

21CJ290

 

Detailed Photos

2. high efficiency and energy saving: the crane adopts advanced hydraulic system and power proportioning design, which has high working efficiency and can significantly reduce energy consumption.

3. Stable and reliable: the crane adopts high-strength steel and high-quality welding technology, stable and reliable structure, with excellent safety performance.

4. precise operation: the crane is equipped with precise sensors and advanced control system, which can realize precise lifting and positioning operation. 

5. Convenient maintenance: the crane's components and systems are designed as modular structure, which is convenient for maintenance and replacement and reduces downtime.

6. Safe and comfortable: the crane's cab is equipped with comfortable seats and humanized operation desk, which can provide a good working environment and vision, and at the same time, it is equipped with safety equipments to guarantee the safety of the operators.

7. A variety of ancillary equipment: the crane provides a variety of ancillary equipment to choose from, such as wire rope compensator, wind speed meter, etc., which can be configured according to the actual needs.

Overall, Comansa crane has the advantages of strong carrying capacity, high efficiency, safety and reliability, which is suitable for various lifting operation scenarios.


On-location shooting of tower crane

 

Packaging & Shipping

 

Company Profile

In Yueyang Machinery we are experts in tower cranes. We sell cranes of the best best China 's brands,ZOOMLION, DAHAN, XG,YONGMAO and others. Moreover our techinical profile allowes us to offer outr suctomers new spares for cranes, used or manufactrured specifically, thus becoming a Yueyang in one of the most competitive companies in the market. 
The range of available new or used towert cranes can handle from 6,000kgs to 100,000kgs (100T) charging by type of crane, flat-top tower crane, top-kit tower crane, luffing  jib tower crance, hoist. With regards of heights,our tower cranes are beased on an initial height of 40m and can reach the requied heights, always accoring to the manufactures specifications.

Do not hesitate and ask us about the tower crane that interest you, new or used, small or large, or seek advice from our sales department. It may include in its offer of transport options,assembly , disassembly.