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DYNICE 75 ... for harbour towing

DYNICE 75 ... for harbour towing
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The DYNICE 75 rope is made of Dyneema* SK75 fibre. DYNICE towing ropes with comparable size and strength to wire ropes but with only a fraction of the weight are ideal to use for harbour towing. The use of Dyneema ropes started in harbour towing and since then has moved on to escort, rescue and open-sea towing. • Low weight. The rope deployment and recovery time is typically halved and it is possible for just one person to handle the rope. Less crew is needed to attend the tow line. If necessary, the rope can be laid down on the deck. • Neutral buoyancy. Only the part on the deck has to be lifted, as the rest floats. In an emergency, a zodiac can be used to transfer the DYNICE line to the ship to be towed. • Good fatigue life. Both tension and bending fatigue of the DYNICE rope are excellent. This allows a safety factor comparable to wire (2-3). Normal lifecycle is significantly longer, or 2-3 times that of other materials. • Increased safety. Because of the low energy storage in the rope there is less risk of accidents if the rope fails. Hand injuries because of broken wires have disappeared and the low handling weight of DYNICE rope reduces back injuries. The longevity of the rope in terms of number of tows depends a on few important factors. In order to increase number of tows, the safety factor may be increased from the minimum of 2. The method of application also plays an important role. Sharp edges should be avoided and damage on fairleads, bollards, etc. repaired and painted before the DYNICE rope is put to use. Sudden jerks resulting in very high shock loading may lead to premature failure. Manoeuvring the tug with ease and using short spring line will help prevent such failure. *) DSM’s registered tr

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A common construction of a tow line is a DYNICE rope with a breaking strength of 80 to 150 tons, 60 to100 m long. A tow line can be with or without a stretching section depending on the manoeuvring characteristics of the tugboat. One or both end sections have additional protection against wear and tear. One version of an 85 metre tug rope with a stretching section is shown below. By adding orremoving 20 metres, a suitable length can be obtained for each application. Some parts of the rope wear faster than others and then they can easily be replaced. Rope Dimensions DYNICE Rope Constructions...

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