Large Braits

Large Braits

Yale is pleased to announce its acquisition and installation of equipment necessary to produce large diameter plaited ropes. Our capability in these styles of ropes, widely accepted in smaller diameters, now continues through five inch diameter, or 15" circumference. This page provides our preliminary data for these styles of ropes.

The first, Nylon Brait, in sizes 6" thru 15" circumference is based on Nylon 6-6 and is a four stage rope, laid firm and easily spliced. The second, Polyester Brait, is also a 4-stage rope based on PET high tenacity yarn offering exceptional tension fatigue, especially wet. The third rope is a plaited ultra-high-molecular-weight polyethylene (UHMPE) which employs Honeywell Spectra® fiber. Spectra is one of the strongest fibers known and is very low elongating. The geometry of the plaited UHMPE allows more substantial dynamic loads to be imparted on the rope without compromising its longevity. 

Larger Nylon Brait

Diameter Average Spliced Minimum Spliced Maximum** Weight
Inches (mm) Break Strength* Break Strength* Work Load 5:1 Lbs/ Kg/
      Lbs Kg Lbs Kg Lbs Kg 100ft 100m
2 51 101,000 45,850 90,900 41,265 20,200 9,170 100 149
2 1/4 57 136,000 61,740 122,400 55,566 27,200 12,348 132 197
2 5/8 67 173,000 78,540 155,700 70,686 34,600 15,708 170 253
3 76 215,000 97,610 193,500 87,849 43,000 19,522 220 328
3 1/4 83 271,000 123,030 243,900 110,727 54,200 24,606 282 420
4 102 383,000 173,880 344,700 156,492 76,600 34,776 402 599
5 127 603,000 273,760 542,700 246,384 120,600 54,752 604 899

 

Larger Polyester Brait

Diameter Average Spliced Minimum Spliced Maximum** Weight
Inches (mm) Break Strength* Break Strength* Work Load 5:1 Lbs/ Kg/
      Lbs Kg Lbs Kg Lbs Kg 100ft 100m
2 51 101,000 45,850 90,900 41,265 20,200 9,170 121 180
2 1/4 57 136,000 61,740 122,400 55,566 27,200 12,348 160 238
2 5/8 67 173,000 78,540 155,700 70,686 34,600 15,708 206 307
3 76 215,000 97,610 193,500 87,849 43,000 19,522 266 396
3 1/4 83 271,000 123,030 243,900 110,727 54,200 24,606 341 508
4 102 383,000 173,880 344,700 156,492 76,600 34,776 486 724
5 127 603,000 273,760 542,700 246,384 120,600 54,752 731 1,089

 

Larger UHMPE Brait

Diameter Average Spliced Minimum Spliced Maximum Weight
Inches (mm) Break Strength* Break Strength* Work Load 5:1 Lbs/ Kg/
      Lbs Kg Lbs Kg Lbs Kg 100ft 100m
2 51 339,000 153,905 305,100 138,515 67,800 30,781 75 112
2 1/4 57 480,000 217,920 432,000 196,128 96,000 43,584 101 150
2 5/8 67 627,000 284,655 564,300 256,190 125,400 56,931 146 217
3 1/8 79 768,000 348,670 691,200 313,803 153,600 69,734 176 262
3 1/2 89 950,000 431,300 855,000 388,170 190,000 86,260 250 372
4 102 1,200,000 544,800 1,080,000 490,320 240,000 108,960 346 515


* Knots and abrupt bends significantly reduce the strength of all ropes and lower the maximum working load.
** Working load is based on static or moderately dynamic lifting/pulling operations. Instantaneous changes in load, up or down, in excess of 10% of the rope's rated working load constitute hazardous shock load and would void the normal working-load recommendation. Consult Yale Cordage for guidelines for working loads and safe use of rope.

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