THE BACKGROUND Following the UK government’s pledge to source at least 10% of all energy generation from renewable sources by 2010, the wind farm construction industry is becoming an ever more demanding market. In 2005, in anticipation of this, MENCK began work on developing the MHU 1900S, the world’s most powerful underwater hammer currently available in a rental fleet. THE DEVELOPMENT MENCK engineers were instructed to construct a hammer suitable for use from small jackup boats with limited crane capacity. The hammer was to weigh in at less than 300t but to have the highest energy rating possible. The MHU 1900S was developed for shallow water applications to 400m and with wind farm construction specifically in mind. In achieving a weight of 292t, the hammer fits the standard

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