The manufacturing process of Windmills

Windmills are used to harness the power of the wind to produce electricity. Usually windmills are erected using pre-made parts, on site. The basic fan type windmill consists of the tower, gearbox and fan.
Tower parts are usually made of galvanized steel using a roll of coiled sheet metal that is put on a de-spooling device to be fed to the production line.
The sheets are run under a straightener to remove twists and kinks and then cut to the right size and shape.
sometimes the pieces may be placed on a machine to roll and weld seams wherein its ends are passed under a crimping machine to be moved to the finishing station...

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