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NETS
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A wide range of nets is
available, the actual material used and the method of construction and
mesh size varying with the purpose for which the net is to be used.
For cargo and rubbish nets,
manila, sisal or polypropylene rope is used. Nets also have numerous industrial
applications, particularly for safety purposes. Many such nets are manufactured
from nylon or polyester cord. These are produced to B.S. 3913: 1973. In
the case of personnel safety nets, an overlay safety net of smaller mesh
is sometimes incorporated to arrest falling objects. Customers are invited
to state their precise requirements so that nets of suitable size and material
can be made up. |
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ROPE
LADDERS
Item |
Fibre
Rope Ladder |
Wire
Rope Ladder |
Width between ropes |
0.28m |
0.24m |
Distance between centres
of rungs |
0.3m |
0.3m |
Rope |
Single 12mm dia.
Polypropylene each side |
Twin 4mm dia.
galvanised wire rope each
side |
Rungs |
Clean, straight-grain round
ash |
16mm dia. light alloy |
Standard Ends (top and bottom) |
Thimble eye |
Thimble eye |
Length |
As required |
As required |
|
|
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STRAND BRAIDED
ROPES
8-Strand Square Braided Ropes
have been known to all marine peoples as most suitable ropes for marine
usage of mooring and rugging etc.
Thanks to its strong points
of high resistance to abrasion and kink under severe condition, 8-Strand
Square Braided Ropes are also popular in industrial usage such as logging
and its subsidiary usage, as well as marine purpose. To effect better efficency
in operation, the ropes can be served with eye (loop) splicing, plain or
covered by canvas, PP cloth or rubber etc., according to customers request.
Polypropylene, Nylon, Polyethylene,
Manline, Polypropylene Film, Polyester adn Poly-Da-caron Ropes etc., are
available for this type. |
POLYPROPYLENE
NYLON
-
Polypropylene rope stands up
extremely well to repeated stress, bending, flexing and fatigure. It is
almost twice as strong as manila rope, yet is rot proof and not damaged
by oil, grease, gasoline, or marine growth.
Polypropylene filament in
itself is improvious to water and ranks highest of all ropes as an electrical
insulator. Polypropylene is a tough rope with excellent abrasion resistance.
-
Polyethylene Rope is a floating
rope like polypropylene but, slightly heavier with slightly less elongation
under stress. Polyethylene has high resistance to abrasion. It is resistant
to damange by oils, gasoline and chemicals. Excellent for use in industrial
and Marine applications.
-
Nylon Rope excells in its ability
to accept heavy shock loads. Ropes made of nylon are one of the strongest
and most elastic of the man-made fiber. Nylon Rope will not float as it
is heavier than water. It is utilized extensively in marine applications
as mooring lines, and in point to point towing. Its general and industrial
uses are numerous.
|
x
Fibre
Ropes, Three Strand Hawser
Size
|
Nylon
|
Polyester
|
Polypropylene
|
Diameter
|
Weight
|
x
|
Minimum Breaking
Load
|
Weight
|
x
|
Minimum Breaking
Load
|
Weight
|
x
|
Minimum Breaking
Load
|
mm
|
kg/100m
|
kg/220m
|
tonnef
|
kg/100m
|
kg/220m
|
tonnef
|
kg/100m
|
kg/220m
|
tonnef
|
4
|
1.05
|
2.3
|
0.32
|
1.46
|
3.2
|
0.30
|
--
|
--
|
--
|
5
|
1.64
|
3.6
|
0.50
|
2.0
|
4.4
|
0.40
|
--
|
--
|
--
|
6
|
2.37
|
5.2
|
0.75
|
2.91
|
6.4
|
0.57
|
1.6
|
3.7
|
0.55
|
7
|
3.19
|
7.0
|
1.02
|
3.91
|
8.6
|
0.77
|
--
|
--
|
--
|
8
|
4.19
|
9.2
|
1.35
|
5.10
|
11.2
|
1.02
|
3.0
|
6.6
|
0.96
|
9
|
5.28
|
11.6
|
1.70
|
6.50
|
14.3
|
1.27
|
--
|
--
|
--
|
10
|
6.50
|
14.3
|
2.08
|
8.05
|
18.7
|
1.59
|
4.5
|
10.0
|
1.43
|
11
|
7.82
|
17.2
|
2.50
|
9.69
|
21.3
|
1.91
|
--
|
--
|
--
|
12
|
9.37
|
20.6
|
3.00
|
11.6
|
25.4
|
2.27
|
6.6
|
14.5
|
2.03
|
13
|
11.0
|
24.2
|
3.50
|
13.5
|
29.5
|
2.72
|
--
|
--
|
--
|
14
|
12.8
|
28.0
|
4.10
|
15.7
|
34.5
|
3.18
|
9.1
|
20.0
|
2.79
|
16
|
16.6
|
36.5
|
5.30
|
20.5
|
45.0
|
4.06
|
11.6
|
25.5
|
3.50
|
18
|
21.0
|
46.0
|
6.70
|
26.0
|
57.0
|
5.08
|
14.9
|
32.5
|
4.45
|
20
|
26.0
|
57.0
|
8.30
|
31.9
|
70.0
|
6.35
|
17.9
|
40.0
|
5.37
|
22
|
31.4
|
69.0
|
10.0
|
38.2
|
84.0
|
7.62
|
22.0
|
48.5
|
6.50
|
24
|
37.3
|
82.0
|
12.0
|
46.0
|
101
|
9.14
|
26.0
|
57.0
|
7.60
|
26
|
--
|
--
|
--
|
53.6
|
118
|
10.7
|
--
|
--
|
--
|
28
|
51.0
|
112
|
15.8
|
62.8
|
138
|
12.2
|
35.5
|
78.0
|
10.1
|
30
|
--
|
--
|
--
|
71.7
|
158
|
13.7
|
--
|
--
|
--
|
32
|
66.4
|
146
|
20.0
|
81.9
|
180
|
15.7
|
46.0
|
101
|
12.8
|
Ropes made from man-made fibres
are immune to rot, mildew and marine decay. They handle easily wet or dry,
having low water absorption properties. Each material has its own individual
peculiarities and characteristics - factors often deciding the precise
choice of the cordage selected for any particular duty.
Nylon
The strongest man-made fibre.
Exceptional resistance to sustained loading. High energy absorption capacity.
Resists alkalis, oils and organic solvents. B.S. 3977: 1966.
Polyester
Size for size, heavier than
nylon rope, but strength only slightly less. Of equal strength wet or dry.
Resists acids, and unaffected by bleaching agents, organic solvents and
oil. B.S. 3758: 1964.
Polypropylene
The lightest man-made fibre
rope in the range. Available as fibrillated, monofilament or staple fibre.
Highly resistant to acids, alkalis and oils. Can be affected by bleaching
agents and some industrial solvents. B.S. 4928: 1973
Size
|
Manila Grade 1
|
SISAL
|
Diameter
|
Weight
|
x
|
Minimum Breaking
Load
|
Weight
|
x
|
Minimum Breaking
Load
|
mm
|
kg/100m
|
kg/220m
|
tonnef
|
kg/100m
|
kg/220m
|
tonnef
|
7
|
3
|
8
|
0.37
|
3
|
8
|
0.33
|
8
|
5
|
12
|
0.54
|
5
|
12
|
0.48
|
10
|
6
|
15
|
0.71
|
6
|
15
|
0.64
|
11
|
9
|
20
|
0.90
|
9
|
20
|
0.80
|
12
|
10
|
23
|
1.07
|
10
|
23
|
0.95
|
13
|
12
|
27
|
1.26
|
12
|
27
|
1.12
|
14
|
14
|
31
|
1.44
|
14
|
31
|
1.28
|
16
|
19
|
42
|
2.03
|
19
|
42
|
1.78
|
18
|
22
|
49
|
2.44
|
22
|
49
|
2.13
|
20
|
27
|
61
|
3.25
|
27
|
61
|
2.84
|
22
|
33
|
73
|
3.86
|
33
|
73
|
3.40
|
24
|
40
|
88
|
4.57
|
40
|
88
|
4.06
|
26
|
46
|
103
|
5.33
|
46
|
103
|
4.72
|
28
|
53
|
118
|
6.10
|
53
|
118
|
5.33
|
30
|
62
|
138
|
6.86
|
62
|
138
|
6.10
|
32
|
70
|
155
|
7.62
|
70
|
155
|
6.86
|
34
|
80
|
176
|
8.64
|
80
|
176
|
7.62
|
36
|
89
|
197
|
9.65
|
89
|
197
|
8.64
|
38
|
100
|
220
|
10.7
|
100
|
220
|
9.40
|
40
|
111
|
244
|
11.7
|
111
|
244
|
10.4
|
44
|
135
|
298
|
14.2
|
135
|
298
|
12.7
|
48
|
160
|
352
|
16.8
|
160
|
352
|
14.7
|
Manila - Grade 1
A high quality rope made
from high grade fibres. A product of the plant Musa Textilis, grown in
the Philippines. B.S. 2052: 1965.
Sisal
Sisal is a cheaper hard
fibre derived from the plant Agave Sisalona grown extensively in East Africa.
Two types of rope are available: Waterproofed - absorbs little water, easier
to handle; White Sisal - untreated. Both comply with B.S. 2052: 1965.
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