Comansa 21LC650

The Comansa 21LC650 flat-top tower crane is a robust and high-capacity lifting solution tailored for demanding construction environments, offering three primary variants: ST20, DT20, and DT25, each with subtle differences in hoisting mechanisms and maximum performance. All variants of the 21LC650 boast a maximum load capacity of 25 tonnes, which can be transported to a maximum radius of 80 meters with the aid of PowerLift technology, enhancing lifting capacity by approximately 10%.

The ST25 and DT25 versions share similar capabilities in terms of load capacity and lifting performance, though the DT (Double Trolley) configurations provide improved material handling speed and versatility. The ST25 version employs hoisting mechanisms such as the EFU6-65-62 and EFU5-110-62, delivering speeds up to 1570 m/h with motors up to 110 kW, powered by a 400 V, 50 Hz three-phase supply. The slewing mechanism is TRA-7.5, offering fine control and smooth operation, while trolley speeds are capable of reaching 80 m/min. The DT25 also offers an EFU5L-110-62 winch, tailored for large hook heights with high drum capacity.

For tower heights, the freestanding under-hook height varies depending on the tower configuration, ranging from about 70.4 m to as much as 108.9 m when utilizing internal climbing or braced configurations. This makes the crane highly suitable for urban high-rise construction or infrastructure projects where height and space constraints play a critical role.