Today there are more than 56,800 wind turbines operating in the United States. Chances are high that most of them were erected by just a handful of different crane models. In the early days of the wind power, industry wind turbines were way lighter and shorter than the huge ones that are going up today. Midsize crawler cranes could often handle them with ease. But as wind turbines have increased in weights and heights, crane manufacturers have been challenged to produce cranes that can meet these tough erection requirements. Generally, on every wind farm job there is one main crane that performs the erection of the mid and upper sections of a wind tower and then installs the nacelle and blades. While all the major crawler manufacturers have cranes in their product ranges that can erect smaller wind towers, ACT asked them to identify their "flagship" wind crane, the one that could perform the erection work required of the "main crane." Following are the three "titans" of the wind industry.
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