Hangzhou Comansa Jie Construction Machinery Co. Ltd.(Comansa JIE) established by JIE Holding Group (China) and Linden Comansa (Spain) is the leading manufacturer of Flat-Top tower cranes in the world. Continuous products development on the basis of company's 40 years of research and experiences in crane manufacturing make it renowned world over.

Due to the internationalization, Comansa JIE adheres to the concept of high quality and provides high reliability and safety products and services to the medium and high end user. Its CJ series tower cranes have passed the BV authentication and confirmed the requirements of CE authentication and the export inspection. This series of tower cranes are used worldwide including India in all kinds of construction projects, such as civil architecture, steel structure, road & bridge and power station.

21CJ290 Flat-Top Tower Crane

Flat Top Tower Crane

The 21CJ290, with Flat-Top design, is one of the most successful models from Comansa Jie. The brilliant concept of Flat-Top design, enabled different capacity tower cranes to be erected using a standard system of modules, opened up a degree of flexibility not available previously. The Indian construction companies are showing large interest in this model, after they have been used successfully on the world's highest cooling tower in India.

Salient Feature:

  • Original Modular Design of Linden Comansa (Spain)
  • Long life of structure, no pendant lines, no alternative stresses in jib or counter-jib structure
  • Automatic reeving change between 2 fall and 4 fall wire rope
  • Only need one more mast section, can allow two tower crane jib section to overlap easily
  • Components can be erected directly from truck to crane; fast, simple and safe erection, lower cost
  • Well-tried modular design, pin-joint system, more flexibility in application, save cost for purchasing repeated components, easy and cheap maintenance
  • Mast section are consisted of 4 uniform detachable panels, weight of crane are rested on the corner angles of the mast, rather than on the pins, this ensure long-life in addition to fast and safe installation
  • Excellent choice for narrow sites as no need to pre-assembly the whole jib on the ground
  • All mechanical structure can be combined in truck or container to make full use of space & load, considerably reducing transport costs
  • Computerized frequency inverter control, easy operation, high quality European brand key components, long life span and lower maintenance cost
  • Fast response and excellent after-sale service through its agent Escorts Construction Equipment Limited (ECEL) with branch offices across India
Currently, there are seven 21CJ290s working on energy plants across the country as well as the two units at Kalisindh, BGR Energy System has another couple of 21CJ290 18t at the Marwa plant (2 x 500 Mw), while Indian engineering giant Larsen & Toubro is also using two units at Rajpura plant (2 x 700 Mw) and another in the construction of the Talwandi Sabo plant (3 x 600 Mw). Comansa Jie's engineering and after sales teams, with the support of its Indian agent ECEL, supervised the erection and commissioning of the cranes in India.
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