Technical reference
Wire-Rope Types, Lay and Selection Considerations
Rope lay
- Regular lay
- Lang lay
- Right-hand lay
- Left-hand lay
Labelled rope-lay diagram
Rope core
- Fibre core
- Independent wire-rope core
- Wire-strand core
Labelled rope-core diagram
Construction terminology
- Number of strands and wires per strand
- Seale, Warrington and filler wire
- Compacted construction
- Rotation-resistant construction
Selection considerations
- Flexibility, abrasion, crushing and fatigue resistance
- Rotation and groove compatibility
- Drum winding
- Corrosion exposure and operating environment
Common damage indicators
- Broken wires, wear and corrosion
- Birdcaging, kinking and core protrusion
- Crushing and diameter reduction
- Heat and termination damage
Final rope selection, inspection and discard decisions must be based on the actual application, equipment-manufacturer requirements, rope-manufacturer guidance, applicable standards and competent examination.