HANSA 09-2024

SMM Profiseal,

SMM Profiseal, Schornsheim Since its market launch in 2015, ProfiSeal has equipped more than 150 shaft lines with its latest fireproof A60 bulkhead seal technology. This innovative solution is primarily used in larger passenger vessels, including cruise ships, RoRo, and RoPax ferries. Additionally, coast guard and navy vessels are increasingly adopting this advanced technology. Bulkhead seals, traditionally known for preventing water from spreading through a hull after a breach, now also effectively stop the spread of fire from high-risk areas like engine rooms. This modern approach eliminates the need for additional fire protection systems beyond the bulkhead, especially for dynamic components such as rotating shafts. ProfiSeal introduced the fireproof bulkhead seal with a third sealing ring made from special carbon, enhancing fire containment capabilities. This design includes a sacrificial outer ring that oxidizes upon contact with fire, releasing carbon dioxide to protect the inner rings and prevent further combustion. The three-ring system ensures that even if the outer ring is compromised, the second ring continues to block oxygen, and the third ring remains intact to prevent water spread. Testing at the Institute for Safety Engineering in Freiberg, Germany, demonstrated the effectiveness of these seals. Under controlled high-temperature conditions of 950 °C, the bulkheads were tested with computer-controlled heats that brought shaft ends to extreme temperatures. Various sensors measured the temperature of the bulkheads on the non-flame side, showing a significant limitation in temperature increase, thus preventing the synthetic carbon components from combusting. Fire and smoking gas did not penetrate along the shaft line. Hall A3 | booth 408 © Profiseal Reintjes, Hameln Reintjes will traditionally be taking part in the 31st edition of the SMM in Hamburg. With the WVSA 1542, the Hameln-based company is presenting a gearbox from one of its new series. Visitors will have the opportunity to take a look at the down-angle gearbox with beveloid gear stage at the 110 square metre Reintjes stand – in its original size. There will be also a control lever and display next to the gearbox. »This allows interested parties to see exactly what © Reintjes happens during the virtual journey,« says Reintjes Managing Director Klaus Deleroi. As a highlight, the Reintjes project manager came up with the idea of an augmented reality visualisation. Using a tablet, it is possible to look inside the gearbox – including the technical simulation of various operating states. What characterises the WVSA 1542 in addition to the down-angle design? The hybrid functionality with three main features. »These are electrical energy generation, the creation of additional torque through the supply of electrical energy and purely electric driving in conjunction with an electric motor,« explains Klaus Deleroi. He adds: »The WVSA 1542 is an aluminium gearbox and is suitable for small and fast ships. We are currently equipping an Italian ferry company with it, for example.« Hall A4 | booth 211 90 HANSA – International Maritime Journal 09 | 2024

SILENCE NEVER SOUNDED SO POWERFUL The design of a transverse thruster influences its efficiency – and the noise emitted by the drive. In the design of our low-noise thruster, we rely on Active Noise Reduction and Passive Noise Reduction. The result is impressive: It is oh so quiet. We are a Hamburg-based manufacturer of marine propulsion and control systems. Contact us at jastram.net or sales@jastram.net We are excited to see you at SMM! You can find us in Hall A3, Stand 200 03.-06.09.2024 in Hamburg