At SMM 2026, Mecklenburger Metallguss (MMG) will present its latest developments in propeller design, retrofit solutions and hydrodynamic optimisation. With more than 78 years of experience, the company develops, designs and manufactures ship propellers at its production facility in Waren (Müritz), Germany, supplying both newbuilding and retrofit projects.
MMG combines conventional sand casting with modern manufacturing technologies, including automated welding systems and large-scale 3D printing. According to the company, this combination enables the production of complex geometries and customised propeller designs while meeting the requirements of classification societies.
A key element of MMG’s portfolio is its propeller redesign programme. More than 700 vessels have already been retrofitted with optimised propellers tailored to updated operating profiles. The aim is to improve propulsion efficiency, reduce fuel consumption and support more economical vessel operation.
The company continues to expand its product range with optimised propeller designs and new manufacturing processes. Current developments also focus on reducing underwater radiated noise while maintaining propulsion efficiency.
Another area of development is the optimisation of the interaction between pre-swirl devices, propellers and rudders. Rather than considering these components individually, MMG adopts an integrated hydrodynamic approach that also takes into account the hull and wake field. According to the company, this allows propulsion systems to be optimised for both efficiency and operational reliability.
Energy-saving devices such as pre-swirl vanes can contribute to lower fuel consumption, provided they are carefully integrated into the overall propulsion concept. MMG combines hydrodynamic analysis, simulation and engineering to optimise propulsion performance while minimising unwanted effects such as cavitation and pressure pulses. Comparative investigations before and after installation provide further insight into the hydrodynamic behaviour of retrofit solutions.
Hall A3, Booth 308
