Лебедки морские (корабельные) SEC Bremen

34 The self tensioning systems are only used for mooring winches. When tides are differing or when quick loading/unloading is demanded (Container/Ro-Ro) Self tensioning demands special requirements for the system since it has to be on stand-by 24 hours a day. In general two self tensioning systems can be supplied: • The hydraulically controlled self tensioning • The electrically controlled self tensioning The first one is used at hydraulic and electric-hydraulic systems. The hydraulically operated self tensioning system is adjustable by changing the pressure. For an electric-hydraulic winch only an oil cooler has to be installed below deck. One of the advantages of this system is the low noise level, due to the fact that the hydraulic components are inside the gearbox. The second one, the electrically controlled DMS unit, is used for electric winches. With a DMS system the stress in one of the gearsteps in the gearcase is measured with a sensitive bolt, this gives a signal which is converted by an amplifier. The amplifier gives an electric pulse signal to the control system of the winches, which dynamically regulates the tension force of the winch. SELF TENSIONING SYSTEMS EASY TO OPERATE • HYDRAULIC OR ELECTRICAL OPTIONS • CUSTOM-MADE SOLUTIONS