Linden Comansa Launches Flat-Top Tower Crane
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December 18, 2014 – Next month, Linden Comansa will launch the 21LC335 flat-top tower crane, part of the LC2100 series. The tower crane replaces Model 21LC290, which Linden Comansa had successfully produced since 2002. Both cranes feature similar characteristics in terms of a range of up to 242.8 ft., a maximum freestanding height of 212.9 ft., and several versions depending on the maximum load capacity of 26,450 and 39,680 lb.
Linden Comansa also increased load capacity in the new machine, which has maximum reaches of 229.7 ft. For example, the 21LC290, an 18-tonne crane with a 164-ft. jib, can load 11,680 lbs. at the end of the jib, while the new 21LC335, an 18-tonne crane with the same jib length, can handle loads up to 14,550 lbs, almost 25% more. With this same 50-meter jib configuration, the maximum load of 39,680 lbs on the 21LC290 hikes to 53.5 ft., while on the 21LC335, maximum load goes up to 64.3 ft., 20% more.
The tower sections, jib, and counter-jib sections of the 21LC335 are the same as for its predecessor. Modifications have been made only on the cat head and the upper turntable, allowing customers who would like to convert their 21LC290 into a 21LC335 to do so by replacing these two elements and modifying the configuration of the counterweights. These changes have also simplified and shortened the assembly sequence of the 21LC335 in comparison to the 21LC290.
The 21LC335 crane comes standard with a Effi-Plus high-speed hoist mechanism that reaches speeds of up to 492 ft. per minute, although there are other optional engines that can reach 748 ft. per minute. Like the rest of Linden Comansa’s flat-top cranes, this new model includes the PowerLift system, that improves the load diagram up to 10% with reduced speeds.
