Strong Connections – Towing & Salvage
Strong connections – high trust OTS is the leading Norwegian manufacturer of customized high-tech fibre ropes. We invent, design, test and manufacture ropes that are tailor made for you, while providing the best solutions for the use of fiber ropes in the ocean. We are centrally located northwest in Norway, easily accessible by sea and air as well as on land. Our equipment, competence and stock facilitates a swift response to customers’ needs. Our segments Scan code to learn more about our products and segments. Strong connections for a better environment We aim to contribute to a more sustainable production, and to significantly reduce our CO2 footprint. Our Dextron® ropes are now made from a Bio Based Dyneema® fiber, which comes with an ISCC certification and is thereby recognized as sustainable and renewable via mass-balancing. Same performance and specifications, same high quality. More sustainable. General environmental benefits from using Dextron® fibre rope • Less need of material to achieve a given performance, provides a lower carbon footprint compared to other materials • Low weight reduces the need of energy for handling, lifting and transport • High break load and durability will contribute to the protection of operations and installations at sea, and reduces the risk of negative environmental impact • Low weight reduces the risk of crush damage • Low energy storage reduces the risk of damage by eventual breakage • Reduced noise disturbance of marine environment compared with steel chain and wire • Aquaculture • Fishery • FPSO • LNG & Tanker • Seismic • Subsea • Supply • Towing & Salvage • Lifting
Dextron® 12 Plus 12 Strand Braided Ropes Applications Seismic lines Mooring lines Winch lines Pick-up lines Tug assist lines Towing lines Fishing lines SPM hawsers Installation lines, subsea Wire rope alternative Pennants Lifting slings Grommets Messenger lines Characteristics Material Dyneema ® SK78 Colour of rope Yellow Strength High strength per weight ratio Elastic elongation Below 0,44 % at 10 % of breaking load Below 0,62 % at 20 % of breaking load Below 0,79 % at 30 % of breaking load Water absorption None Abrasion resistance Very good Fatigue resistance Excellent UV exposure Very good Chemical resistance Excellent Melting range 144 – 152 ºC Max work temperature 65 ºC Specific density 0,98 (floating) Special properties • Stronger than steel wire with corresponding diameter • Fast and easy to splice • Low weight compared to steel wire ropes • Floats – specific gravity below 1,0 • High abrasion resistance against wear and tear • Long service life • Flexible and easy to handle • High safety – low kinetic energy (low lash back) • Torque free and dielectric/resonance properties • Excellent resistance against acid and chemicals Dextron® 12 Plus Hybrid 12 Strand Braided Ropes Applications Winch lines Mooring lines Tug assist lines Pick-up lines Installation lines, subsea Towing lines Pennants Wire rope alternative Grommets Messenger lines Characteristics Material Dyneema ® SK78 / Polyester Colour of rope Yellow Strength High strength per weight ratio Elastic elongation Below 0,30 % at 10 % of breaking load Below 1,90 % at 20 % of breaking load Below 2,30 % at 30 % of breaking load Water absorption None Abrasion resistance Very good Fatigue resistance Excellent UV exposure Very good Chemical resistance Excellent Melting range 144 – 152 ºC Max work temperature 65 ºC Specific density 1,21 Special properties • Fast and easy to splice • Low weight compared to steel wire ropes • High abrasion resistance against wear and tear • Long service life • Flexible and easy to handle • High safety – low kinetic energy (low lash back) • Excellent resistance against acid and chemicals • Higher coefficient of friction than regular dyneema ropes Diameter tolerance +/- 2 % Weight and length tolerance +/- 5 % Larger diameters available on request *Tested with spliced eye terminations both ends. Diameter, weight and breaking strength determined according to ISO 2307 : 2019. Diameter tolerance Weight and length tolerance Larger diameters available on request *Tested with spliced eye terminations both ends. Diameter, weight and breaking strength determined according to ISO 2307 : 2019. Dim (mm) Weight (kg / 100 m) Breaking Strength Unspliced (Te) Breaking Strength Spliced (Te)* 8 4,3 7,6 6,8 10 6,4 11,4 10,3 12 11,2 17,1 15,4 14 12,8 22,4 19,8 16 15,8 26,1 23,5 18 18,8 32,3 29,1 20 25,4 38,9 35,0 22 27,8 41,6 37,4 24 33,8 52,0 46,8 26 40,6 63,0 56,7 28 43,2 70,0 63,0 30 49,5 76,9 69,2 32 56,3 92,0 82,8 34 62,6 99,1 89,2 36 68,0 112,3 101,1 38 78,0 116,0 104,4 40 91,0 129,7 116,7 42 102,5 141,8 127,6 44 119,5 160,2 144,2 46 125,1 184,9 166,4 48 132,5 189,2 170,3 50 140,2 196,2 176,6 52 155,0 220,0 198,0 56 174,1 238,8 214,9 60 202,3 277,0 249,3 Dim (mm) Weight (kg / 100 m) Breaking Strength Unspliced (Te) Breaking Strength Spliced (Te)* 20 25,5 25,7 23,1 22 30,1 28,8 25,9 24 35,1 30,4 27,4 26 41,4 36,9 33,2 28 44,6 41,0 36,9 30 50,1 45,0 40,5 32 57,3 53,9 48,5 34 63,7 58,0 52,2 36 73,3 65,8 59,2 38 79,6 67,9 61,1 40 92,4 76,0 68,4 42 105,1 83,0 74,7 44 117,9 93,8 84,4 46 124,3 108,3 97,5 48 130,1 110,8 99,7 50 137,0 114,9 103,4 52 149,8 128,9 116,0 54 161,0 133,3 120,0 56 172,1 139,9 125,9 60 200,1 162,2 146,0
Towing Line Bridle System Nylon Stretcher Towing Arrangement Main Tow Configurations • Main towing lines are available in our Dextron 12 plus or Dextron 12 Plus Hybrid qualities. • Customized versions are available as for most OTS products. We can adapt the tow lines construction to customers’ specific needs. • Bio-based Dyneema version is available to enable significantly reduced CO 2 footprint. • Extremely light, flexible, and easy to handle. • Proven long lifetime with a high number of towlines in frequent use in rough conditions on the Norwegian coastline. Especially for lines with OTS Protective Jacket™. The Dextron® 12 bridle arrangement is made of Dyneema® fiber and may be delivered with OTS Protective Jacket™ braided on the entire length, except from the softeyes. We recommend that the “center eyes” are without OTS Protective Jacket™ as a rope on rope (softeyes on lashing) will ensure a better grip and connection, avoiding the loops in the lashing to cross/pinch. A Lashing line connects the “3-part” arrangement, and easily installed or replaced in accordance with our OTS Installation Manual. Regular visual inspection of the lashing line is recommended in order to plan replacement. Replacement are executed in just a few minutes by a trained person. Dextron®12 Plus Dextron®12 Plus Dextron®12 Plus OTS Protective Jacket™ OTS Protective Jacket™ Softeye Softeye Softeye Softeye Softeye Softeye Dextron®12 Plus OTS Protective Jacket™ Bridle legs OTS Lashing Line Softeye Softeye OTS Protective Jacket™ OTS Nylon / Polyester Main Towing Line Stretchers are included in towing arrangements to provide stretch / elasticity and reduce shock loads when in operation, thereof their name. Our stretchers are made of high-quality nylon fibers, in either an eye-eye or a grommet configuration. Regular rope constructions applied in stretchers are 8-strand or 12-strand braided. For ultimate protection and extended lifetime stretchers are also offered with OTS Protective Jacket™. Towing Arrangement
OTS Emergency Towing System Complete Emergency Towing Systems (ETS) for vessels 20 – 50 000. DWT and over 50 000 DWT. The kits are in full compliance with resolution MSC.35(63) of the 1994 SOLAS convention and the amendments in MSC.256(84). High strength and good visibility Dextron ® 12 Plus towing line is a light rope with high strength and good visibility. The complete system is easy accessible in a solid plastic container with top cover closed with straps. The towline can be completely fitted with the patented OTS Protective Jacket™ on request. The kits are delivered in three different types according to vessel equipment number*. In addition to the standard ETS types, the kit can be customized to meet your specific demands. Type / Product No 1 / 013301 2 / 013302 3 / 013303 ETS Type Under 20 000 DWT 20 000 – 50 000 DWT above 50 000 DWT Dextron ® Messenger Line 10 mm, 122 m 16 mm, 122 m 16 mm, 122 m Dextron ® Towline 36 mm, 76 m 56 mm, 76 m 80 mm, 92 m ISO 2307 strength 101 MT 214 MT 411 MT Assembly 92 x 71 x 71 cm 123 x 103 x 75 cm 147 x 118 x 89 cm Stretcher (Optional) Emergency tow system Dextron ® 12 Plus Bridle legs (Optional) Contents Optional Advantages • Emergency tow line (One softeye and splice covered with OTS Protective Jacket™) • Light buoy / Floating buoy • Pick up line (Dextron ® 12 Plus) • Plastic container with top • Stretcher • Bridle legs • Reflective Protective Jacket • PLT (Pneumatic Line Throwers) • Pick up equipment • Low weight • High strength • Patented OTS Protective Jacket™ against abrasion • Floating • No maintenance • Fast and easy rigging All kits meet the requirements of IMO guidelines – SOLAS regulation 11-1/3-4, 11-1/3-8, MSC.1/Circ.1255 and MSC/Circ.1175. OTS Soft Shackles Softshackles made by Dextron ® 12 Plus Dyneema ® SK78 Advantages • Lightweight • Easy to open / close • No corrosion • Causes no abrasion on the surroundings • Increased safety in case of lashback How to close • Widen the main loop • Push the ‘diamond knot’ through the main loop • Fix the locking-loop two turns • Tighten the main loop Larger sizes available upon request. All OTS Soft Shackles can be provided with OTS Chafe Gear. Dim (mm) Breaking Strength Unspliced (Te) 8 6,8 10 10,3 12 15,4 14 19,8 16 23,5 18 29,1 20 35,0 Dim (mm) Breaking Strength Unspliced (Te) 22 37,5 24 46,8 26 56,7 28 63,0 30 69,2 32 82,8 34 89,2
OTS Chafe Gear The OTS Chafe Gear is delivered in two configurations: a sleeve finish which is used prior to and during splicing of rope, and a velcro finish enabling assembly anywhere on the rope after it is spliced. In addition to protecting your rope, the OTS Chafe Gear is used on chains, seine and other hardware components. High abrasion strength OTS Chafe Gear is made with durable HMPE fiber, the world’s strongest synthetic fiber material, or with high strength polyester. Other material qualities are also available on request. Proven Quality OTS Chafe Gear has been used by our valued customers for over a decade. The shared experience between OTS and our customers has led to further development of the product material and quality. Advantages • Can be installed on new or used ropes • Easy to remove for rope inspection or replacement • Customized to fit any application • Protects rope from external abrasion • Increased service life OTS Protective Jacket Patent No. 31 44 59 The patented proprietary chafe gear – OTS Protective Jacket™ – gives excellent protection against external abrasion and increases rope lifetime up to five times. The jacket’s solid construction – combined with abrasion resistant fibers makes the best cut- and abrasion resistant cover for your ropes. The standard color of the jacket is white, and as an option the jacket is delivered with OTS coatings in various colors. The jacket can be combined with reflective bands for improved visibility making a High-Viz Protective Jacket. It can be braided on the whole rope length or on exposed areas where high abrasion is likely to occur. Material: HMPE Dyneema® or Polyester The patented OTS Protective Jacket™ is a clear winner in comparative tests performed by customers and/or 3rd parties like DNV GL. Please contact our sales team or OTS distributors to learn more about the OTS Protective Jacket™ and how its properties can improve your arrangements’ durability. Advantages • Protects rope from cuts and abrasion • Increased service life • Can be braided on entire rope or exposed areas • Reduced rope twisting
OTS Dyneema Hose OTS Dyneema Hose is a sleeve finish used prior to and during splicing of rope. The hose is made of the same high quality woven band that we use in our OTS Protective Jacket™, and is widely used by our valued customers. Proven quality – Quick fix In addition to protecting your rope, the OTS Dyneema Hose is used on chains and other components to reduce wear and tear. The OTS Dyneema Hose can be customized to fit any application. It is made of durable HMPE Fibers, the world’s strongest synthetic fiber material. Other material qualities are available on request. 003720 OTS Dyneema Hose Ø26 – 40 mm 32 – 7 mm 003722 OTS Dyneema Hose Ø12 – 16 mm 16 – 7 mm 003723 OTS Dyneema Hose Ø40 – 56 mm 32 – 10 mm 003724 OTS Dyneema Hose Ø18 – 24 mm 16 – 10 mm 003726 OTS Dyneema Hose Ø > 56 mm 32 – 14 mm Capacity Max load 600 t / 60 t Max test length 25 m Ram stroke 1 3 m Ram stroke 2 3 m Cylinder 1 capacity 600 t Cylinder 2 capacity 60 t OTS Horizontal Test Bed OTS 6000kN The OTS 6000kN Horizontal Test Bed is specially designed for non-destructive and destructive testing of steel wire ropes, synthetic ropes and chains. The test is computer controlled with automatic data acquisition, storage and evaluation. Standard test programmes: • Basic proof load • Proof load with unload – Up to 5000 cycles • Configurable proof load – by customer specifications • Destructive test for wire ropes acc. to EN12385 – 1: 2002 • Destructive test for fiber ropes acc. to EN2307 / ISO 2307:2010 • Elongation test program for fiber ropes • Impulse test – Up to 100 000 cycles • Dynamic test I – 1 x 5 % + 4 x 50 % MBL + break test • Dynamic test II – 1 x 5 % + 4 x 50 % MBL • Manual test Testing and certification service Please contact us for further details and enquiries. All tests can be verified by any class company required. (DNV, Lloyds, ABS etc). Load cells class 1 in accordance with EN ISO 7500 – 1: 2004. Elongation measurements with camera.
Get in touch with a member of our staff. Vebjørn Løviknes Chief Commercial Officer +47 415 02 752 vl@otsas.no Audun Røyset Sales Manager Offshore +47 900 87 704 ar@otsas.no Henning Støylen Product development & Project Engineer +47 412 10 478 hs@otsas.no Offshore and Trawl Supply AS Ytterlandshamna 11 6050 Valderøya NORWAY +47 70 18 94 94 sales@otsas.no otsas.no
otsas.no Offshore & Trawl Supply AS THE NORWEGIAN ROPE MANUFACTURER
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