twin-path® slings in action - Hanes Supply, Inc

Wire RopeYOUR SLING AND RIGGING SPECIALISTROTATION RESISTANTWIRE ROPESIn certain instances the use of rotation resistantwire rope is necessary to provide rotational stabilityto the lifted load. In general, the use of thesespecialized wire ropes is limited to those situationswhere it is impractical to:1. Use a tag line.2. Relocate rope dead end.3. Increase sheave sizes.4. Eliminate "odd-part" reeving.5. Significantly reduce rope loading and ropelength.Rotation resistant wire ropes have less of a tendencyto unlay when loaded than do conventionalwire ropes. This results in improved rotational stabilityto the lifted load within a safe working loadrange. Rotation resistant wire ropes are designedin such a way that the rotational force of the outerrope is partially counteracted by the rotationalforce of the inner rope when the rope is subjectedto a load.The rated strengths of rotation resistant ropes areless than the conventional 6 x 19 and 6 x 36 Classificationwire ropes, and larger sheaves anddrums are required in order to achieve comparablefatigue life. Drum and sheave diametersshould be 34 to 36 times rope diameter for the 19x 7 and 35 x 7 rotation resistant ropes and 21 to27 times rope diameter for 8 x 19 rotation resistantropes.Rotation Resistant Ropes are available in a fullrange of sizes, grades and constructions:• Standard constructions for single-part and multipartlifting.• Special wire rope constructions for increasedservice life in particularly demanding applications– Dyform ® -18 HSLR, Dyform ® 34LR and35LS.note:1.Swivels are not recommended for use with rotationresistant ropes.2.Although B30 standards permit rotation resistantropes to be used under certain conditionsat design factors of 3.5:1, we recommend aminimum design factor of 5:1 & a design factorof 7:1 for extended rope life.Dyform ® - 18HslRRotation ResistantFor multi-part lifting.35% greater strength.DYfoRM ® -18 HslRRotatIon ResIstant RoPenoMInal aPPRoX.DIa. stRenGtH* Wt/ft(In.)† (tons) (lbs)3/8 8.3 .277/16 11.2 .371/2 14.6 .519/16 18.5 .645/8 22.7 .793/4 32.4 1.17/8 43.8 1.51 57.5 2.01-1/8 71.5 2.51-1/4 87.9 3.1Dyform ® - 34lRStrongest, most rotationresistant. For the mostdemanding hoistingapplications.35lsFor demandingapplications wherehighest strength isnot mandatory.19 x 7Rotation ResistantNot recommended formultiple part lifting.8 x 19Rotation ResistantCan be used formultiple part lifting.HEADQUARTERS: 55 James E. Casey Drive • Buffalo, NY 14206 PHONE: 716.826.2636 FAX: 716.826.4412 www.hanessupply.com139DYfoRM ® -34lR & 35ls RotatIon ResIstance RoPeMIn. bReakInG foRce** aPPRoX.(tons)Wt/ft (lbs)DIaMeteR 1960 2160(MM) (In.) 34lR 35ls 34lR 34lR 35ls– 1/2 15.40 13.60 17.42 .54 .4913 – 16.19 14.28 18.21 .57 .5114 – 18.88 16.52 21.13 .65 .60– 9/16 19.67 17.31 22.03 .69 .6215 – 22.03 19.11 24.73 .77 .6916 5/8 25.18 21.69 28.21 .87 .7817 – 27.20 24.28 30.46 .94 .8718 – 30.80 27.09 34.62 1.07 .9719 3/4 34.51 30.91 38.67 1.20 1.1120 – 38.33 33.61 42.94 1.32 1.2121 – 43.28 37.43 48.45 1.49 1.3422 – 46.65 41.37 52.38 1.61 1.49– 7/8 47.21 41.59 53.06 1.65 1.5123 – 50.69 44.74 56.88 1.75 1.6124 – 55.64 49.35 62.38 1.92 1.7725 – 60.59 52.94 67.89 2.10 1.91– 1 62.38 54.40 70.03 2.16 1.9726 – 66.09 57.78 74.19 2.28 2.0828 – 75.99 66.99 85.20 2.63 2.41– 1-1/8 77.45 68.90 86.89 2.70 2.5030 – 86.44 75.99 97.01 2.99 2.7432 1-1/4 98.13 85.99 110.16 3.39 3.1035 1-3/8 116.90 105.89 123.65 4.05 3.8238 1-1/2 138.26 120.27 147.25 4.87 4.3519 X 7 RotatIon ResIstant RoPenoMInal stRenGtH* aPPRoX.DIa. (tons) Wt/ft(In.) eIP IPs (lbs)3/16 1.57 1.42 .0641/4 2.77 2.51 .1135/16 4.30 3.90 .1773/8 6.15 5.59 .257/16 8.33 7.58 .351/2 10.8 9.85 .459/16 13.6 12.4 .585/8 16.8 15.3 .713/4 24.0 21.8 1.027/8 32.5 29.5 1.391 42.2 38.3 1.821-1/8 53.1 48.2 2.301-1/4 65.1 59.2 2.801-3/8 78.4 71.3 3.431-1/2 92.8 84.4 4.081-5/8 108.0 98.4 4.808 X 19 RotatIon ResIstant RoPe7/16 8.97 7.80 .361/2 11.7 10.2 .479/16 14.7 12.8 .605/8 18.1 15.7 .733/4 25.9 22.6 1.067/8 35.0 30.5 1.441 45.5 39.6 1.881-1/8 57.3 49.8 2.391-1/4 70.5 61.3 2.941-3/8 84.9 73.8 3.561-1/2 100.0 87.3 4.24*Acceptance strength is not less than 2-1/2% below the nominalbreaking strengths listed.NOTE: These strengths apply only when a test is conductedwith both ends fixed. When in use, the strength ofthese ropes may be reduced if one end is free to rotate.**Listed minimum breaking force is for 1960 & 2160 gradebright (ungalvanized) ropes. Inquire for a minimum breakingforce of glavanized ropes.†Other sizes available upon request.