Serving the Marine Industry since 1936

NIKA-Siri® S-12 DB M-Cover Rope

NIKA-Siri® S-12 DB M-COVER ropes are High Modulus / High Performance ropes consisting of a 12strand load bearing core and a protective braided jacket. The load bearing 12 strand core is produced using the highest quality UHMWPE fibers and the non-load bearing jacket is made of a special blend of high tenacity Polyester fibers and UHMWPE fibers. The ropes' construction is firm, round and torque free.

The 12strand core is treated with NikaThane-J coating and the unique heat-setting process enhances the fiber's superior characteristics. NIKA-Siri® S-12 DB M-COVER ropes are 7-8 times stronger than steel ropes and 3 times stronger than polyester (on a weight by weight comparison).

APPLICATIONS:  Mooring (to be used with Synthetic tails) – Anchoring – Tow Lines (to be used with synthetic tails) – STS operations

The application of NikaThane-J coating and the heat-setting process improve drastically the structural stability and the strength efficiency of the rope. Additionally, NikaThane-J coating improves the core-jacket interaction, minimizing the jacket slack during operation. The mixed UHMWPE/Polyester jacket protects the High Modulus load bearing core against abrasion and UV/environmental degradation and thus prolongs its service life. For the jacket repair, a standard repair kit is available upon request.

LR Type Approval Certification

When compared to wire ropes, NIKA-Siri® S-12 DB M-COVER 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 M-COVER 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 M-COVER ropes are produced according to ISO 10325-2009 and they comply with OCIMF's latest regulations & recommendations for the safe mooring of the tanker-LNG-LPG vessels.

Specific Gravity: 1.02 (Floating)
Elongation at breaking: 3.5% (when new)
Melting point: 145oC (UHMWPE) - 256oC (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 Data
Size (Circ) Size (Diam) Weight
 ( +/- 5%)
Min. Breaking Load
Inch mm Kilos/ 100m Kilos/ 220m Tons
2 16 15.9 35.0 20.1
21/4 18 21.1 46.4 26.5
21/2 20 24.5 53.9 32.9
23/4 22 30.0 66.0 40.1
3 24 36.8 81.0 47.9
31/4 26 43.2 95.0 55.3
31/2 28 49.4 108.7 65.0
33/4 30 55.5 122.1 72.8
4 32 64.8 142.6 79.7
41/4 34 72.2 158.8 84.5
41/2 36 79.2 174.2 94.5
43/4 38 88.8 195.4 106.0
5 40 99.7 219.3 120.2
51/4 42 110.9 244.0 130.9
51/2 44 122.3 269.1 144.9
53/4 46 132.8 292.2 158.0
6 48 143.0 314.6 175.6
61/4 50 159.0 349.8 190.1
61/2 52 168.0 369.6 207.4
7 56 185.0 407.0 220.1
71/2 60 208.4 458.5 257.5
8 64 238.4 524.5 284.5
81/2 68 269.8 593.6 316.4
9 72 308.8 679.4 352.5
91/2 76 342.0 752.4 391.8
10 80 383.9 844.6 459.5