| Trait |
Selection Method of Rope |
Typical
Usage |
Flexibility
(BendingTrait) |
 The rope with fiber core as the center is flexible.
The one having fiber core at the center of strand has
better flexibility
Cross Laid Rope is more flexible than parallel Laid Rope
The one having more wire is flexible |
Sling
Lashing |
The one having more wire within strand is more
flexible
The one having more strands is flexible But except for
multilayer strand ropes
The early cutoff can occur if the number of wire
gets larger than required.
The rotational property gets higher if there are many
strands. But except for multilayer strand ropes |
|
Breaking Load
(Safety Ratio) |
The breaking load of parallel Laid Rope is higher
than the Cross Laid Rope.
The breaking load is higher as the tensile strength is
higher
IWRC has higher breaking load than fiber core.
The Compact rope has higher breaking load than
regular ropes of the same structure |
|
| Elongation |
Elongation is lower as the number of wire are fewer
The elongation of parallel Laid Rope is higher than
Cross Laid Rope.
The elongation is lower in the order of Fiber
Core 〉 IWRC 〉 .
|
Various PENDENT
BRIDGE HANGER
Cable and Elevator |
| Wear Resistance |
The wear resistance is better as the number of
wire is fewer.
The flat type, swaging and compact ropes have good wear resistance.
The parallel Laid Rope has better wear resistance than
Cross Laid Rope.. |
Cable, Timbering, Rope Rails, Mine Field Incline Shaft Hoist |
| Form Stability |
The parallel Laid Rope has better form stability than
Cross Laid Rope..
The rope with IWRC has better form stability than fiber
core.
The one with fewer wire and strands is more stable.
Compact and flat type ropes have better form stability |
|
| Rotational Property |
Must use rope with no rotational property The rotation gets higher as the coiling head gets longer
The rotation can be prevented by using Z-Laid and
S-Laid side by side.
Ordinary Lay has lower rotational property than
Lang ' s lay.
The rotational property gets higher as the curve radius
of sheave is lower.
Rotational property gets lower as the number of strands gets fewer.
But except for multi strand ropes |
High Head Crane
Power Line Withdrawal |
| Corrosion Resistance |
The galvanized rope must be used in environments
where corrosion is concerned.
The one with few wire (think wires) have strong
wear resistance
Rope grease has good anti corrosion ability to improve
corrosion resistance
Fiber core has better corrosion resistance than steel
core.
Corrosion resistance must be considered for long period of usage even if the environment is satisfactory. |
Fishery
Various PENDENT
HANGER
ANCHOR |
| Temperature Resistance |
The steel core rope must be used because fiber core is
weak to high temperature.
The black grease is used for rope grease in case of high
temperature environment and high temperature grease
must be applied if necessary
The red grease is appropriate in case of low temperature environment. |
Ladle Crane
(Charter Crane) |
