Comansa 21LC600

The Comansa 21LC600 is a high-capacity flat top tower crane built for demanding industrial, infrastructure, and high-rise applications. It is available in multiple configurations, notably the DT20, DT25, and ST25, each offering distinct lifting and structural capabilities while sharing the modular, flat top design that enables easy transport, rapid assembly, and crane-to-crane coordination on dense job sites.

Load Capacities and Jib Reach
All three models offer a maximum jib length of 80 meters, configurable in 5-meter increments, with precise load management across their range. The DT25 and ST25 versions feature a maximum capacity of 25 tonnes, whereas the DT20 supports up to 20 tonnes. At the full 80-meter reach, typical tip loads range from 4.2 to 5.7 tonnes depending on the hoisting winch and reeving setup.

Hoisting Mechanisms and Performance

• The DT25 and ST25 can be outfitted with high-powered winches like the EFU5L-110-62 or EFU5L-132, enabling hoisting speeds up to 144 m/min with partial loads and a rope storage capacity of up to 820 meters, suitable for ultra-high vertical operations.
• The DT20, while slightly more modest, still accepts robust winches like the EFU5L-110, offering excellent performance for mid-rise applications.

Tower Systems and Heights

• The DT25 and DT20 are both equipped with modular D36 tower sections, allowing for greater free-standing heights (typically around 100+ meters), and adaptability to internal climbing or braced configurations.
• The ST25 configuration uses a standard ST tower system with integrated climbing equipment, streamlining internal climbing applications. While it offers slightly reduced freestanding capacity, it is optimized for height extension in constrained shafts.

Counterjib and Ballast
The counterjib is modular in all versions, offering options between 21.8 m and 31.3 m, depending on working radius and load chart requirements. Counterweights are shared across models, enhancing fleet interchangeability and easing logistics.

Electrical and Control Systems
Each version operates on a 400V / 50Hz / 3-phase electrical system, and features Comansa’s high-efficiency frequency-controlled drives on hoisting, slewing, and trolleying. Operator comfort is supported by the panoramic XL cabin, with optional automatic reeving adjustment, load moment indicators, and remote diagnostics.