Less than 30 deg 7 Two-5 Three-0 Three-5 Four-0 Four-5 Five-0 Five-5 Six-5 Eight-0 Ten-0 Twelve-0 Fourteen-0 50 75 95 125 157 210 270 345 530 790 1110 1460 2168 3015 4340 Basic cable details 10 12 14 16 18 20 22 26 32 2.0 2.9 3.5 4.7 5.9 8.0 10.2 13.1 20.2 30.0 42.1 55.5 82.5 114.7 165.2 0.7 1.1 1.4 1.8 2.3 3.1 3.9 5.0 7.7 11.5 16.1 21.2 31.6 43.9 63.2 0.5 0.8 0.9 1.2 1.5 2.1 2.6 3.4 5.2 7.7 10.8 14.2 21.1 29.3 42.1 1.0 Single Fall WLL These WLL figures are derived in accordance with AS 1666.1 Notes on these calculations: Please note – figures are rounded to the closest decimal point Choked on rectangular load with edge radius > 1.0 D 1.96 <30° 60° 1.73 90° 1.41 1.0 120° Cradle lift, angle <30° Choked on round load 2.0 2.9 3.5 4.7 5.9 8.0 10.2 13.1 20.2 30.0 42.1 55.5 82.5 114.7 165.2 1.7 2.6 3.1 4.2 5.2 7.1 9.0 11.6 17.8 26.5 37.2 49.0 72.8 101.2 145.8 1.4 2.1 2.5 3.4 4.2 5.8 7.3 9.4 14.5 21.6 30.3 39.9 59.4 82.5 118.9 1.0 1.5 1.8 2.4 3.0 4.1 5.2 6.7 10.3 15.3 21.5 28.3 42.1 58.5 84.3 WLL for various included angles of two, three or four leg slings Cable Size or number Minimum Breaking Force (MBF) kN Cable nominal diameter (D) mm 1.0 1.5 1.8 2.4 3.0 4.1 5.2 6.7 to convert the list MBF of Superflex cable in kNs to WLL of a Superflex sling in tonne (1000kgsf) made from that cable, use the following procedure – divide the MBF by 49.05 (9.81 x 5), then multiply this result by 0.95 to allow for the 5% reduction for sling assembly as required by AS 1666.1. (the all up divisor = 51.5) This provides the WLL for a sling in single fall configuration, and from this all the other configurations are calculated. Loading factors for various configurations based on the single fall WLL SUPERFLEX SINGLE SLINGS Working Load Limits For Superflex Single Slings Superflex Single Slings are used for general lifting purposes where a flexible steel sling is needed.The WLL is shown in the table in tonnes of 1000 kgsf – the standard Factor of Safety is 5 Seventeen-0 Twenty-0 TwentyFour-0 10.3 15.3 21.6 28.3 42.1 58.5 84.3 1.96 0.75 0.5 40 48 56 68 80 96 Included angle for 2, 3 or 4 leg slings 9
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