Steel Wire Ropes, Pressed steel wire rope slings, Pressed Steel twisted wire rope, Spliced steel wire rope slings, Lifting Equipments, Mumbai, India

 

Steel Wire Ropes  

 

Steel Wire Ropes 

  ▪ Pressed steel wire rope slings

▪ Pressed Steel - twisted wire rope slings

▪ Spliced steel wire rope slings

▪ Cast slings bind slings non-tie steel wire rope slings

▪ Range 6mm to 52 mm diameter
     
IS 2268 / 89    
 
Nom. 2417Mass x12591826 6 x19 (12/6/1)
IS:2266/89
Mass 6 x 36/6x41
6 x 36(14/7&7/7/1)
6 x 41 (16/6&8/8/1)
IS:2266/89
Dia Kg/100 Mtrs     1770 N/mm2 Kg / 100 Mtrs. 1770 N/mm2
  FMC IWRC     FMC IWRC FMC IWRC FMC IWRC
5 8.65 9.52 - - 13.6 14.7 - - - -
6 12.5 13.7 - - 20 21 - - - -
8 22.1 24.4 - - 35 37.8 24.3 26 - -
9 28.0 30.8 49.0 52.6 44 47.5 30.8 33 47 51
10 34.6 38.1 60.0 65.0 54 58.3 38.0 41 56 63
11 41.9 46.1 73.0 70.7 66 71.3 46.0 50 71 76
12 49.8 54.8 87 94 78 84.2 54.7 60 84 92
13 58.5 64.4 102 110 92 99.4 64.3 70 99 106
14 67.6 74.6 118 127 107 116 74.5 82 114 124
15 77.8 85.8 - - 122 132 85.5 94 131 142
16 88.6 97.4 154 166 139 150 97.3 107 149 161
17 100 110 - - 157 170 110 121 169 182
18 112 123 195 210 176 190 123 139 189 204
19 125 13 217 234 196 212 137 151 211 228
20 138 152 241 260 218 235 152 167 234 252
22 167 184 292 314 263 284 184 202 283 305
24 199 219 374 375 313 338 219 241 336 363
25 216 238 - - 340 367 238 261 365 394
26 234 257 407 439 368 397 257 283 395 426
28 271 298 472 - 426 461 298 328 458 494
29 291 320 - - 458 494 320 352 491 530
30 312 343 - - 490 529 342 376 526 567
32 354 390 617 - 557 602 389 428 598 646
34 400 440   - 629 679 440 484 675 729
35 424 466   - 666 719 466 512 715 772
36 448 493 781 - 705 761 493 542 757 817
38 500 550 870 - 786 848 549 604 843 911
40 554 609 964 - 870 940 608 669 934 1009
42 611 672   - 959 1036 670 738 1030 1112
44 670 737 1166 - 1053 1137 736 810 1130 1220
46 733 805 - - 1151 1243 805 885 1235 1333
48 798 877 - - 12553 1353 876 964 1345 1452
50 865 951 1388 - 1360 1468 950 1046 1459 1575
52 936 1029 1629 - 1471 1588 1028 1031 1578 1704
 
Safety Factors
 
A factor of safety is a multipler of the Nominal Strength to the Nominal Strength to ensure the safety of the rope over its service life, by incorporating the normal rope wear that may occur in the course of general use.
 
Number 10Type od Service Minimum Safety Factor
     
1 Hoisting Equipment 5.0
2 Haulage Rope 6.0
3 Overhead & Gantry Cranes 6.0
4 Jib & Piller Cranes 6.0
5 Derricks 6.0
6 Small Electric and Air Hoists 7.0
7 Hot Ladle Cranes 8.0
8 Guy Ropes 3.5
9 Wire Rope Slings 5.0
10 Mine Shafts  
  Depths to 500 ft 8.0
  Depths of 500- 1000 ft 7.0
  Depths of 1000- 2000 ft 6.0
  Depths of 2000- 3000 ft 5.0
  Depths of 3000 or more 4.0
 
Right Ropes For The Right Job
 
Types of ropes for various applications are listed below. The operating conditions, including the design and construction of the installation affect the serive life of the wire rope.
 
1 General Engineering Rope : 6 x 19, 6x21, 6x25, 6x36, 6x37
2 Earth Moving Equipment 6x21,6x24, 6x25, 6x36, 8x31, 7x19, 7x37 Groups
3 Logging 6x19, 6x21, 6x25, 6x31Groups
4 Shipping 6x12, 6x19, 6x24, 6x25, 6x36, 6x37, 7x7, 7x19, 8x31 Groups
5 Oil Industry 6x19, 6x21, 6x25, 6x26, 6x31, 6x37 Groups.
6 Mining Industry 6x7, 6x19, 6x21, 6x25, 6x2
 
Discard Factors
 
Wire ropes can be discarded if the following conditions are listed below the ultimate tensile strength.
 
1 Wear and Tear Internal - Wear & Tear of wires within stand and between stands
External - Scurbbing of wire rope
2 Corrosion Loss of metal due to corrosive envirnoment.
3 Fatigue Repeated reversal of stress leads to brittle fracture of wires
4 External Deformation Presence of Corkscrew Formation, Cage Formation, Looping of Wires or stands, knots, Construction, Flattening, Curing, puffing & kinks
5 Action of heat Excessive heat dries out ropes leading to risk of internal wire rupture
6 Type, Position & Number of Wire Ruptures Wire ruptures in nests or strand break
7 Abnormal Stretching Paralleling of the strand due to untwisting of the rope.
8. Surface Embrittlement Work hardening of the wire surface leading to fatigue failure
9. Core Collapse Non-circular wire rope shape.s
10. Fitting Time Expected rope life from previous experience.
11.    
 
 

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