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SQUARE ROPE |
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The most
common rope construction is 3-stand hawser laid,
which is achieved by forming a spiral of three
strands twisted together.
For marine applications however a different
construction has been developed known as 8-strand
plaited, or more commonly square rope
construction. This type of construction, in
addition to retaining the strength of 3-strand
ropes, produces ropes that are more flexible,
non-kinking, and have exceptional grip on bitts
and the drum ends of winches. |
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SPECIFICATIONS |
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Size number
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16 |
20 |
24 |
36 |
40 |
48 |
56 |
64 |
72 |
80 |
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LENGTH PER
COIL (m)
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125
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125
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125
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220
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220
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220
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220
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220
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220
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220
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Minimum Breaking Force (kN)*
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16 |
20 |
24 |
36 |
40 |
48 |
56 |
64 |
72 |
80 |
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POLYPROPYLENE
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37.0
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N/A |
79.7 |
N/A |
201
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280
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371
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480
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603
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741
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NYLON |
N/A |
N/A |
118 |
244 |
N/A |
412 |
N/A |
706 |
882 |
1078 |
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POLYESTER
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39.8
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62.3
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89.6 |
190 |
235 |
329 |
N/A |
568 |
N/A |
N/A |
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* THE MINIMUM BREAKING FORCE MUST IN NO
WAY BE CONSTRUED AS THE SAFE WORKING LOAD OF
THE ROPE
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8-strand Plaited square ropes are
manufactured in accordance with and
conform to the size, number and minimum
breaking force requirements of Australian
Standard AS4142-2-1993. |
8-strand Plaited Square Ropes are
manufactured by plaiting the strand in a
two over two formation, and to ensure true
twist balance, half the strands are
twisted in the right hand direction and
the other half in the left hand direction.
Size for size, 8-strand Plaited Square
Ropes are equal in strength to the
3-strand hawser laid ropes.
8-strand Plaited Square Ropes can be
manufactured from all the natural and
man-made fibres. However, the most poular
fibre types are Nylon, Polypropylene Film,
Silverline and Polyester.
They can be readily spliced but the
splicing technique is different to that
used for 3-strand hawser laid ropes. It
can be easily mastered and the
instructions for the production of high
efficiency eye and short splices are
available.
The extendibility of square ropes is
slightly higher than that of the 3-strand
hawser laid ropes because of the 'setting
in' of the eight strands, but other
physical attributes of the two types of
ropes are the same size per size. |
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To request further
information on this product
click here! |
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