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A
Description of Wire Rope |
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The properties of wire rope are derived from its size, construction, quality,
lay and type of core. |
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Size |
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Ropes are referred to by a diameter size. The correct way to measure wire rope
is shown below. |
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Construction |
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The main components of a wire rope are shown below. |
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In the example above, each individual wire (4) is arranged around a central wire
(5) to form a wire strand (3). Strands |
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(3) are formed around a central core(2)
to make a wire rope(1). The actual range of wire rope constructions is wide |
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and
varied but the number can be limited to approximately twenty five. Below are
some examples. |
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The size and number of wires in each strand, as well as the size and number of
strands in the rope greatly affect the |
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characteristics of the rope. In general, a large number of small-size wires and
strands produce a flexible rope with |
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good
resistance to bending fatigue. Ideal For running or moving ropes such as
winches, hoist and luffing type |
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applications. A fewer number of thicker wires
and strands produce a less flexible rope with good resistance to |
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abrasion and
corrosion. These are ideal for scraper, staying and standing type applications.
The rope construction |
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is also important for tensile load ( static, live or
shock)abrasive wear, crushing, corrosion and rotation. |
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1. General Engineering |
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6x7+FC |
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Application: |
Mining, Staying etc |
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Characteristics: |
Low Stretch, Excellent abrasion resistance, less bending fatigue resistance |
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7x7+WMC |
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Application: |
Dragging and Hauling, Staying ,Tramways and sand lines |
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Characteristics: |
Low Stretch, Excellent abrasion resistance, less bending fatigue resistance |
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6x12+7FC |
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Application: |
Marine and General Engineering |
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6xS(19)+FC |
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Application: |
Haulage Ropes, Choker Ropes, Crane Ropes, General Engineering Ropes, Rotary
drilling ropes,
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Hoist Ropes |
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Characteristics: |
Resistant to abrasion and crushing; Medium fatigue resistance |
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6xW(19)+FC |
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6xS(19) IWRC |
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Application: |
Haulage Ropes, Choker Ropes, Crane Ropes, General Engineering Ropes, Rotary
drilling ropes, |
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Hoist Ropes |
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Characteristics: |
Resistant to abrasion and crushing; Medium fatigue resistance |
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6xW(19) IWRC |
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6x24+FC |
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Application: |
General purpose , hoists, cranes |
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Characteristics: |
Good Abrasion resistance, Flexible, less resistance to bending fatigue, Easy to
handle |
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6xFI(25)+FC |
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Application: |
Haulage Ropes, Choker Ropes, Crane Ropes, General Engineering Ropes, Rotary
drilling ropes, |
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Hoist Ropes |
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Characteristics: |
Resistant to abrasion and crushing; Medium fatigue resistance |
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6xFI(25)+IRWC |
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Application: |
Haulage Ropes, Choker Ropes, Crane Ropes, General Engineering Ropes, Rotary
drilling ropes, |
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Hoist Ropes |
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Characteristics: |
Resistant to abrasion and crushing; Medium fatigue resistance |
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6x36(ws)+iwrc |
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Application: |
Overhead crane and mobile crane hoist ropes; winch lines; large diameter towing
lines. |
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Characteristics: |
14 outside wires. More fatigue resistance; but less abrasion resistance than 6 x
25 rope. |
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6xWS(36)+FC |
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Application: |
Overhead crane and mobile crane hoist ropes; winch lines; large diameter towing
lines. |
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Characteristics: |
14 outside wires. More fatigue resistance; but less abrasion resistance than 6 x
25 rope. |
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6x37+FC |
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Application: |
For Cranes, Hoists, general engineering, Hawser and mooring lines |
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Characteristics: |
fibre core for flexibility; galvanized for corrosion resistance |
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