The design of new solutions for the 21LC1050 flat-top tower crane, launched in September 2018, allowed Comansa's R&D team to apply similar innovations to the 21LC660 and 21LC750 models, improving their performance. Both models have increased their maximum load capacity to 55,120, 82,670 and 110,230 pounds. This improvement is achieved by using a compacted wire rope and a lighter trolley-hook set.
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