Mr Steef Staal, DMC Managing Director, says: “The new spinning machinery, developed in the past two years, makes the production of nozzles much easier and gives an improved end product, because there is only a single weld seam on the inner side of the nozzle. Manufacturing the complete inside of a nozzle in one go is very special.”
The spinning machine can produce nozzles with an inside diameter ranging from 1,000 mm to 5.3 m outside. Using a completely automated system, the machine can handle stainless steel, duplex, steel and special steel materials. The new machine is also able to handle the demand for shorter delivery times, emphasizes Mr. Staal. “Uncertainty in the market often means that companies order equipment at the very last minute and this means that lead times and delivery times are getting shorter. With this machine we adapt to that process.”
Under the traditional construction method, the inner side is constructed from several small welded parts. This is now history and the new method results in a much smoother surface. The new machine is already proving very successful with both existing and new customers.
Propeller nozzles are a sustainable product by definition, because they significantly reduce fuel consumption and thus cut down on CO² emissions. However, the new production method is even more environmentally friendly. “Because there is less welding and grinding this method saves energy and emissions,” Staal says. In addition, the new machinery saves production time and enhances our stable price/quality ratio, making it more cost efficient.
In addition to producing nozzles, DMC advises customers on various related topics, e.g. nozzle installation methods, in order to deliver a comprehensive solution to its customers.