A small step in dredger construction, a giant leap for APT Global. The Cutter Suction Dredger CSD500 is one of the standard dredgers within the range of well-proven high quality cutter suction dredgers. It has been designed for a max dredging depth of 15 m and has a max mixture capacity of 760 ltr/min. The fully […]

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Dredging is an excavation activity or operation usually carried out at least partly underwater, in shallow seas or fresh water areas with the purpose of gathering up bottom sediments and disposing of them at a different location. This technique is often used to keep waterways navigable. Cutter suction A cutter-suction dredger’s (CSD) suction tube has […]

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A propeller is the most common propulsor on ships, imparting momentum to a fluid which causes a force to act on the ship. The ideal efficiency of any size propeller (free-tip) is that of an actuator disc in an ideal fluid. An actual marine propeller is made up of sections of helicoidal surfaces which act […]

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