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Utility Pulling Lines & Cable Grips

Utility Pulling Lines are ropes used by electrical utility companies or often utility contractor companies for pulling utility transmission wires through blocks and into place on transmission towers. The ropes are fed through the blocks on the towers and attached to the end of the wires which are then pulled into place by large winches. Pulling lines are often sold in multiples of 4 or 6 units at a time depending on the number of wires being pulled. The ropes are ordered coated with different colors so they can be easily identified. The best choice for this application are Plasma® or Spectra® ropes. Benefits of these high-performance fiber constructions are:

  • High strength
  • Abrasion resistance
  • Low stretch
  • Ease of splicing in the field
  • Stays round and firm around blocks and sheaves
  • Available with urethane coatings in a variety of colors
  • Torque free

Below is a comprehensive list of all our strength members suitable for Utility Pulling Lines, or reference our Utility Products flyer. These detail the construction types we use and their relative strengths and applications. A datasheet for each rope construction listed below is available here or in our resources and downloads section.

Plasma® 12 Strand

Plasma® 12 Strand is the highest strength synthetic rope available. Plasma® 12 Strand is manufactured from high performance Honeywell Spectra 900® Fiber that has been enhanced by Cortland's patented recrystallization process. Plasma® 12 strand is supplied with our standard polyurethane finish, although other coatings can be applied to suit specific applications, and is easily spliced.

Benefits / Features
  • Lowest stretch
  • Low creep
  • Soft hand
  • Torque free
  • Easy splicing
  • Neutrally buoyant in water
  • Select sizes are ABS & DNV type approved
Plasma® 12x12

The 12x12 Construction is designed specifically for high modulus, high strength fibers such as Spectra®, Plasma® enhanced Spectra®, BOB® , 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 rope that is easy to inspect and can be quickly spliced using standard 12 strand splicing techniques. Plasma® 12x12 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.  Plasma® 12x12 is supplied with our standard polyurethane finish, although other coatings can be applied to suit specific applications.

Benefits / Features
  • World's strongest rope for its weight
  • Long lengths available
  • High flex fatigue and abrasion resistance
  • Easy to splice, inspect, and repair
  • 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 x12

12x12 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®  12x12 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®  12x12 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

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® 12x12

Cortland's patented 12x12 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. Vectran® 12x12 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. Vectran® 12x12 is supplied with a polyurethane coating finish although other coatings can be applied to suit specific applications and is available in black or a choice of custom colors.

Benefits / Features
  • High strength
  • Low stretch
  • No creep
  • Soft hand
  • Torque free
  • Easy splicing
Technora® 12 Strand

Technora® 12 Strand is made with high strength light weight Technora® fiber. The 12 strand braided construction is torque free and easy to splice. Technora® 12 Strand is extremely heat and flex fatigue resistant. It also has very little creep, making it a good choice for applications with high static loads including mooring cables, hoisting cables, and tower guy wires. Technora® 12 Strand is available with a standard black polyurethane coating.

Benefits / Features
  • Torque free
  • Easy to splice
  • Heat resistant
  • Flex fatigue resistant
Polyester Double Braid

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 Strand

Polyester 12 Strand has the lowest stretch and highest strength of all Polyester constructions. Its torque free braided construction provides easy handling and prevents kinks and hockles. Polyester 12 Strand comes standard with a clear polyurethane finish and is easily spliced using a simple lockstitch type splice.

Benefits / Features
  • Low stretch
  • High strength
  • Soft hand
  • Torque free
  • Easy splicing
D/S Composite Double Braid

D/S Composite is a double braided rope with the inner core made of Spectra® and the outer sleeve of polyester. D/S Composite has very low elongation, high strength and the feel and handling of polyester double braid. D/S Composite features a standard overlay marine finish and is available on special order with a spliceable polyurethane finish in clear or a choice of custom colors.

Benefits / Features
  • High strength
  • Low stretch
  • Soft hand
  • Torque free
  • Easy splicing
D/T Composite Double Braid

D/T Composite Double Braided rope has an inner core made of Plasma® and the outer sleeve is made of polyester. D/T Composite has very low elongation, high strength, and the feel and handling of polyester double braid. D/T Composite Double Braid is available in standard white or a choice of custom colors.

Benefits / Features
  • High strength
  • Low stretch
  • Soft hand
  • Torque free
  • Easy splicing
Cable Grips

Whatever the project, Cortland can provide the right choice of cable grips. They can be applied to many types of cables from large hydraulic umbilicals to small fiber optic cables and can be fitted without having access to the end of the cable. They can be used as a “quick fit” temporary attachment or used as a permanent attachment.  Cable grips are designed to minimize any external damage to the cable and can be fitted without the need to gain access to the end of the cable.  Cortland offers cable grips in three standard types. Consult with the Engineers at Cortland Cable when making the cable grip selection.
 
AS Cable Grips
Cortland AS Cable Grips are manufactured with either DuPont Kevlar® or Teijin Twaron Aramid fiber. Aramid fiber stoppers are the “tried and true” workhorse of many Oceanographic, Seismic, and Industrial applications.

TS Cable Grips
Teijin Technora fiber is used to manufacture Cortland TS Cable Grips. Technora is also an Aramid fiber, but enjoys a 20% strength advantage compared to the Aramids used in Cortland AS Cable Grips. Technora also exhibits a higher resistance to abrasion. Cortland TS Cable Grips also provide a more durable product in demanding applications.

VS Cable Grips
When the application is very demanding, Cortland VS Cable Grips, manufactured with Vectran fibers, are the best choice in Stoppers. Vectra fibers have superior abrasion resistance and excellent dynamic loading durability. Cortland VS Cable Grips have the same strength ratings as the Cortland TS Cable Grips. The more extreme the applications, the more Cortland VS Cable Grips become the right choice.

Benefits / Features
  • Versatile
  • Quick fit temporary attachment
  • Permanent attachment
Applications
  • AS Cable grips
  • TS Cable grips
  • VS Cable grips
PDF Document, 1.1 MB
PDF Document, 1.1 MB