PROTON®-8

Proton-8 is a high-strength, and low-weight line that has excellent heat resistance and the grip necessary for use on bitts and capstans. Its firm, flexible, torque-free construction performs well on both single- and split-drum winches. Proton-8 provides substantially better service life, is almost neutrally buoyant, and has low water absorption for ease and speed of handling during deployment and retrieval. The yellow Samthane coating ensures maximum wear resistance and service life while making Proton-8 highly visible. Proton-8 is designed for use on H-bitts and capstans under surging and rendering conditions.

Product Code

830

Specific Gravity

1.09

Elastic Elongation
10% 20% 30%
0.58% 0.87% 0.96%

Fiber (Core/cover)

HMPE - Polyester Blend

Splice

8-Strand Class II

Mainline / H-Bitt   •   Capstan Line

Easy to splice   •   Firm, yet flexible   •   Heat resistant   •   High coefficient of friction   •   High strength-to-weight ratio   •   Low water absorption   •   Solid grip on winch drums, bitts, and capstans   •   Torque-free construction

  Imperial Metric ISO  
  DIAM.
inch
CIRC.
inch
WEIGHT PER 100 FT.
lbs
AVG. STRENGTH
lbs
MIN. STRENGTH
lbs
DIAM.
mm
CIRC.
mm
WEIGHT PER 100 M
kg
AVG. STRENGTH
kg
MIN. STRENGTH
kg
ISO 2307 STRENGTH
metric tons
 
  1 3 19.5 65,000 55,300 24 72 29 29,500 25,100 27.8  
  1 1/8 3 1/2 24 81,000 68,900 28 84 35.7 36,700 31,200 34.7  
  1 1/4 3 3/4 33.5 102,000 86,700 30 90 49.8 46,300 39,300 43.7  
  1 5/16 4 39.9 122,000 104,000 32 96 59.4 55,300 47,000 52.3  
  1 3/8 4 1/8 41.5 127,000 108,000 34 100 61.8 57,600 49,000 54.4  
  1 1/2 4 1/2 48.6 147,000 125,000 36 108 72.3 66,700 56,700 63  
  1 5/8 5 55.3 165,000 140,000 40 120 82.3 74,800 63,600 70.7  
  1 3/4 5 1/2 74.4 224,000 190,000 44 132 111 102,000 86,400 96  
  2 6 89.6 280,000 238,000 48 144 133 127,000 108,000 120  
  2 1/8 6 1/2 106 326,000 277,000 52 156 158 148,000 126,000 140  
  2 1/4 7 114 372,000 316,000 56 168 170 169,000 143,000 159  
  2 3/8 7 1/8 139 451,000 383,000 57 174 207 205,000 174,000 193  
  2 1/2 7 1/2 144 466,000 396,000 60 180 214 211,000 180,000 200  
  2 5/8 8 154 513,000 436,000 64 192 229 233,000 198,000 220  
  2 3/4 8 1/2 169 551,000 468,000 68 204 251 250,000 212,000 236  
  3 9 205 638,000 542,000 72 216 305 289,000 246,000 273  
  3 1/4 10 265 739,000 628,000 80 240 394 335,000 285,000 317  

ISO strength specifications are for unspliced rope. All other strength specifications are for spliced rope.

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