Tug & Salvage Lines

Tug lines are one of the most demanding applications in the commercial marine industry due to the high loads and abrasion these ropes experience on each job. Cortland has supplied quality products to tugs all over the world for ship assist, towing, and escort jobs, for many years. Our technologically advanced products such as Plasma® 12×12 offer our customers the following benefits:

  • Lighter and easier to handle
  • Requires fewer crew members
  • Faster tie ups and stand downs
  • Safer – reduces strain and back injuries
  • No fish hooks
  • Reduced costs
  • No maintenance
  • Proven track record in the industry for over 20 years
  • Works well on winches
  • Easy to splice

Pendants

Cortland provides and recommends the use of pendants which are a very popular method for extending the life of tug assist and working lines. Pendants are a shorter length of rope attached to the mainline by either reeving or cow-hitching the lines together. The pendant is on the working end of the main tug hawser and gets most of the abrasion and damage. Thus, the shorter pendant (usually 50-ft to 100-ft in length) can then be replaced, if and when necessary, at a less expensive cost than replacing the 450-ft mainline.

Below is a comprehensive list of all our strength members suitable for Tug and Salvage Lines. These detail the construction types we use and their relative strengths and applications. To find out more about our engineered rope solutions for the tug market, download our Tug & Salvage brochure.

Plasma® 12 strand is the highest strength synthetic rope available. Plasma® 12 strand is manufactured from High Modulus Polyethylene (HMPE) that has been enhanced by Cortland’s patented recrystallization process.

Plasma® 12 strand is delivered standard with a polyurethane finish and is easily spliced using a simple lockstitch type splice, 4-3-2 or 5-4-3 tuck splice. It’s soft, torque free braided construction provides easy handling.

Benefits / Features
  • Lowest stretch
  • Low creep
  • Soft hand
  • Torque free
  • Easy splicing
  • Neutrally buoyant in water
  • Select sizes are ABS & DNV type approved
Spectra® 12 Strand

Spectra® 12 Strand provides very high strength, low stretch and excellent abrasion resistance in a single braid construction. Pound for pound, it is over 3 times as strong as polyester and has less than one half the elongation. Spectra® 12 Strand is easily spliced using a simple lockstitch type splice or 5-4-3 Tuck splice, and its soft, torque free braided construction provides easy handling. Spectra® 12 Strand is supplied with our standard polyurethane finish, although other coatings can be applied to suit specific applications.
Benefits / Features
  • Very low stretch
  • Very high strength
  • Soft hand
  • Torque free
  • Easy splicing
  • Neutrally buoyant in water
  • Select sizes are ABS & DNV type approved

Spectra® 12 Strand provides very high strength, low stretch and excellent abrasion resistance in a single braid construction. Pound for pound, it is over 3 times as strong as polyester and has less than one half the elongation. Spectra® 12 Strand is easily spliced using a simple lockstitch type splice or 5-4-3 Tuck splice, and its soft, torque free braided construction provides easy handling. Spectra® 12 Strand is supplied with our standard polyurethane finish, although other coatings can be applied to suit specific applications.
Benefits / Features
  • Very low stretch
  • Very high strength
  • Soft hand
  • Torque free
  • Easy splicing
  • Neutrally buoyant in water
  • Select sizes are ABS & DNV type approved
 
Spectra® 12 x12

 

12×12 Construction is designed specifically for high modulus, high strength fibers such as Spectra® , Plasma®  enhanced Spectra® , and Vectran® . This patented construction addresses the most critical properties of the fibers to provide a very high strength translation efficiency for larger ropes. This design allows for long lay lengths making the rope more flexible for bending applications and a rope that is easy to inspect and can be quickly spliced using standard 12 strand splicing techniques. Spectra®  12×12 is a 12-strand single braided rope in which each of the 12 strands is, in turn, a 12-strand rope, or braided primary strand. Spectra®  12×12 is supplied with our standard polyurethane finish although other coatings can be applied to suit specific applications.

Benefits / Features
  • Very low stretch
  • Very high strength
  • Soft hand
  • Torque free
  • Easy splicing
  • Neutrally buoyant in water
  • Select sizes are ABS & DNV type approved

Vectran®  12 Strand braided rope has good temperature, abrasion, tension- tension, and flex fatigue resistance as well as negligible creep.  Vectran®  12 Strand braids are easily spliced and the soft, torque free braided construction provides ease of handling. It is available with a polyurethane coating finish and is available in black or a choice of custom colors. Other coatings can be applied to suit specific applications.

Benefits / Features
  • High strength
  • Low stretch
  • No creep
  • Soft hand
  • Torque free
  • Easy splicing
 

Vectran® 12 strand and 12×12 is high strength very low stretch braided rope manufactured using Vectran LCP (Liquid Crystal Polymer) high modulus synthetic fiber yarns. This torque-free rope is popular in applications when strength, low strech, heat resistance and zero creep in fiber are required. Vectran 12 strand and 12×12 has excellent bend and flex fatigue resistance and is easily spliced using the lock-stitch type splice, 4-3-2 or 5-4-3 tuck splice.

Vectran 12 strand and 12×12 rope is typically provided with a clear polyurethane coating. Cortland’s patented 12×12 construction is available on Vectran braided rope from 1-1/2″ (36 mm) diameter through 8-1/4″ (200 mm) diameter, for strengths and weights above 4″ diameter please contact Cortland.

Benefits / Features
  • High strength
  • Low stretch
  • No creep
  • Soft hand
  • Torque free
  • Easy splicing
Nylon Double Braid is the preferred choice for applications requiring high strength with excellent shock absorbing properties. Nylon Double Braid has good resistance to abrasion, sunlight and chemicals. Due to its high elongation, nylon is almost always used in applications involving shock loading such as anchor lines and mooring lines. Nylon Double Braid comes standard with an overlay marine finish.
Benefits / Features
  • High stretch
  • High strength
  • Excellent shock absorption
  • Soft hand
  • Torque free
  • Meets MIL-DTL-24050E
  • Select sizes are ABS & DNV type approved
 

Nylon 12 Plait provides high strength, high elongation and excellent abrasion resistance in a single braid construction. Nylon 12 Plait is easily spliced using a standard tuck splice and is 25% stronger than three strand or 8 plait nylon. Its torque free braided construction provides easy handling and prevents kinks and hockles. Nylon 12 Plait comes standard with an overlay marine finish.

Benefits / Features
  • High stretch
  • High strength
  • Excellent shock absorption
  • Soft hand
  • Torque free
  • Easy splicing
  • ABS & DNV type approved
 

Polyester Double Braid provides an excellent combination of high strength, low stretch, excellent weathering resistance, and easy handling. The standard color for Polyester Double Braid is white; however, this construction can also be produced in a variety of colors using solution-dyed polyester in the jacket braid for lasting color and a good hand.

Benefits / Features
  • Low stretch
  • High strength
  • Soft hand
  • Torque free
  • Excellent wet strength
  • Meets MIL-DTL-24677B
  • Select sizes are ABS & DNV type approved
 
 

Polyester 12-Plait provides high strength, low stretch and excellent abrasion resistance in a unique single braid construction. This construction is easily spliced using a standard tuck splice and is 30% stronger than 3 strand or 8 plait polyester. Its torque free braided construction provides easy handling and prevents kinks and hockles. Polyester 12-Plait comes standard with an overlay marine finish and is available on special order with a spliceable polyurethane finish in clear or in a choice of colors.

Benefits / Features
  • Low stretch
  • High strength
  • Soft hand
  • Torque free
  • Easy splicing
  • Meets MIL-R-24750
  • ABS & DNV type approved

 
 

PSR 2000 12 Strand offers a high strength to weight ratio and is an excellent replacement for heavier polyester lines. Its unique blend of polyester and olefin co-polymer in each strand makes for a highly efficient construction. PSR 2000 12 Strand is torque balanced, has excellent wear resistance, and is one of the quickest ropes to splice. PSR 2000 12 Strand is an excellent choice as mooring, tie-up and pendant lines, tug assist lines, and for general purpose heavy marine applications.

Benefits / Features
  • Low stretch
  • High strength
  • Torque free
  • Easy splicing
  • Soft hand
  • Excellent abrasion resistance