Serving the Marine Industry since 1936

High Performance Ropes | UHMWPE Ropes | NIKA-Siri® S-12 DB

ΝΙΚΑ-Siri® S-12 DB Rope

NIKA-Siri® S-12 DB are High Modulus / High Performance ropes with excellent properties, ideal for the demanding shipping industry. They consist of a 12strand load bearing core (highest quality UHMWPE fibers) and a protective braided jacket. This rope construction is firm, round and torque free.

APPLICATIONS: MOORING / TOW LINES / STS OPERATIONS (to be used with synthetic tails) / ANCHORING / OFFSHORE / YACHTING

There are three options for the jacket:

a. 100% Polyester jacket: A reliable protective jacket that offers very good abrasion resistance and gripping properties when used on winches, capstans and other types of hardware.

b. Mixed jacket (UHMWPE/PES): A special blend of UHMWPE and polyester fibers form a highly abrasion protective jacket, that combines the gripping efficiency of Polyester and the ultra-high abrasion resistance of UHMWPE fibers.

c. UHMWPE jacket: A High Modulus jacket that provides maximum abrasion resistance prolonging significantly the rope’s service life.

These special jackets provide extra protection against abrasion, UV sunlight and environmental degradation. The jackets are repairable with the use of repair kit.

The 12strand core is treated with NikaThane-J coating and the unique heat-setting processes enhance the fiber’s superior characteristics and improve drastically the structural stability and the strength efficiency of the rope. Also, NikaThane-J coating improves the core-jacket interaction, minimizing the jacket slack during operation.

NIKA-Siri® S-12 DB ropes are 7-8 times stronger than steel ropes and 3 times stronger than polyester (on a weight by weight comparison). When compared to wire ropes, NIKA-Siri® S-12 DB ropes are stronger (for the same weight), lighter (making it easy and fast to handle), safer to use and cost-saving (minimum maintenance needs, no greases, faster operating times).

NIKA-Siri® S-12 DB ropes are an excellent wire-rope alternative and some of the reasons are the following:

  1. Most cost-effective ropes to purchase due to lower labor requirements in operations and decreased mooring & towing operating times
  2. Safer and easier to use due to their high strength and low weight.
  3. 2-3 times longer service life
  4. Negligible maintenance costs

NIKA-SIRI® S-12 DB ropes are produced according to ISO 10325-2009 and they comply with OCIMF’s latest regulations & recommendations for the safe mooring of the tanker-LPG-LNG vessels.

Siri High Performance Ropes
NikaFiber
NikaLube
NikaThane
LR Type Approval

Technical Specifications

Specific Gravity: 1.07 (PES jacket) / 1.00 (Mixed jacket) / 0.97 (UHMWPE jacket)
Elongation at breaking: 3,5% (when new)
Melting point: 145oC (UHMWPE) - 265 oC (PES)
Resistance to UV radiation: Excellent
Chemical Resistance to ALKALI: Excellent
Chemical Resistance to ORGANIC SOLVENT: Very Good
Chemical Resistance to ACID: Good. Resistant to H2SO4 in temperatures up to 25oC

Technical Datasheet
Size (Circ) Size (Diam) Weight (+/- 5%) (Polyester jacket) Weight (+/- 5%) (Mixed jacket) Weight (+/- 5%) (UHMWPE jacket) Minimum Breaking Load
inches mm Kilos /100m Kilos / 100m Kilos / 100m Tons
2 16 17.1 15.9 15.1 20.1
2 1/4 18 22.2 21.1 20 26.5
2 1/2 20 25.8 24.5 23.4 32.9
2 3/4 22 31.6 30 28.6 40.1
3 24 38.6 36.8 35 47.9
3 1/4 26 45.4 43.2 41 55.3
3 1/2 28 51.9 49.4 46.9 65
3 3/4 30 58.3 55.5 52.7 72.8
4 32 68 64.8 61.6 79.7
4 1/4 34 75.8 72.2 68.6 84.5
4 1/2 36 83.2 79.2 75.2 94.5
4 3/4 38 93.2 88.8 84.4 106
5 40 104.7 99.7 94.7 120.2
5 1/4 42 115 110.9 105.4 130.9
5 1/2 44 128.4 122.3 116.2 144.9
5 3/4 46 139.4 132.8 126.2 158
6 48 149.5 143 138.7 175.6
6 1/4 50 167 159 151.1 190.1
6 1/2 52 176.4 168 159.6 207.4
7 56 196 185 169.9 220.1
7 1/2 60 218.8 208.4 198 257.5
8 64 250.3 238.4 226.5 284.5
8 1/2 68 283.3 269.8 256.3 316.4
9 72 324.2 308.8 293.4 352.5
9 1/2 76 359.1 342 324.9 391.8
10 80 403.1 383.9 364.7 459.5
11 88 514.1 488 465.1 545.9
12 96 567.6 540.6 513.6 625.3