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's 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. Keep abreast of these ropes and others, notably our Unitrex XS-8.

 

Larger Nylon Brait

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

 

Larger Polyester Brait

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

 

Larger UHMPE Brait

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


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

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