These high strength synthetic ropes
are produced by Hampidjan of Iceland from DSM Dyneema fibre.
In a proprietory process the fibre is made into ropes that exceed the strength of steel cable but with a fraction of the weight.
Dynex does not store energy like a conventional rope or wire cable so the risk from recoil is largely eliminated as is hand injury from broken wire strands and back injury from lifting heavy cable.
This ease of handling also means faster turnaround, more productivity and time saved.
Developed originally for use in the marine and fishing industries the rope is a first choice to replace wire in towing, mooring and anchor systems.
Abrasion resistance is excellent in both Dynex and Dynex Dux, for special purposes the ropes can also be supplied with a variety of covers.
Extruded plastic, overbraided with Dynex or inside a sleeve of polyester are some of the options.
As well as the offshore industries Dynex is used by a wide range of other end users including the pulling of telecommunication and electricity cables both above and below ground and sea, helicopter lift cable, anchoring communication masts, stunts and special effects providers, the towing of sonar buoys and Dynex is widely accepted in the Defence Forces and Search and Rescue organisations.
Leisure uses for the ropes are also wide ranging, from grand prix yachting to everyday cruising, 4 WD tow ropes, parasailing, hang gliding and climbing to name just a few.
Dynex as the following table illustrates is very high strength, Dynex Dux is even greater (see below).
The ropes can be supplied in almost any length, spliced if required and shipped anywhere.
Diameter
of rope
Weight pr.
100 metres
Minimum breaking
strength
Maximum
unspliced length
(mm)
(kg)
(ton)
(kN)
(m)
4
1.1
2.0
20.0
6,500
6
2.3
4.2
40.8
3,200
8
3.8
6.7
65.5
2,000
10
6.1
10.7
105.4
1,200
12
9.3
16.4
161.1
5,300
14
12.5
21.8
214.3
4,100
16
16.0
27.4
269.3
2,500
18
20.7
35.0
343.0
2,100
20
25.2
41.9
411.1
1,700
22
30.5
50.0
490.8
1,400
24
35.6
57.8
567.4
1,200
26
41.0
65.7
644.5
1,000
28
46.5
73.8
724.4
900
30
51.5
80.9
793.4
750
32
56.7
88.3
866.3
660
34
62.0
95.7
938.3
600
36
67.2
102.9
1009.6
550
38
73.0
110.9
1087.9
500
40
79.3
119.8
1175.0
470
42
87.2
130.8
1283.1
430
44
94.3
140.7
1380.2
400
46
102.2
151.7
1488.0
370
48
111.9
165.0
1619.1
340
50
121.9
178.7
1753.2
310
52
132.2
192.7
1890.0
290
54
142.7
206.9
2029.4
270
56
153.6
221.3
2171.2
250
58
164.8
236.0
2315.2
230
60
176.4
251.0
2462.8
210
62
188.3
266.4
2613.8
200
64
200.7
282.2
2768.3
190
66
213.4
298.3
2926.1
180
68
226.5
314.7
3087.0
170
70
240.0
331.4
3251.1
160
72
254.0
348.4
3418.1
150
74
268.3
365.8
3588.0
140
76
283.0
383.4
3760.8
130
78
298.0
401.2
3936.2
120
80
313.5
419.4
4114.3
110
82
329.4
437.8
4294.8
105
84
345.7
456.5
4477.8
100
DYNEX DUX 75 Pre-stretched braided rope with ultra high breaking strength
The Dynex Dux 75 is a new generation of ultra high performance ropes. It is far stronger than the Dynex 75 or by some 20% up to 43% in the smaller diameters. The rope is veryfirm and compact with smooth surface. Elongation is very low or about 3%.
The pre-stretching ensures that accurate length of rope can be measured directly withoutany pretension. The ropes are impregnated to improve abrasion resistance and endurance.
Lengths can be cut to customer requirements.
Diameter
Weight pr.
Minimum breaking
strength
Maximum
of rope
100 metres
unspliced length
(mm)
(kg)
(ton)
(kN)
(m)
7
3,4
7,5
73
2.200
9
5,4
12,0
118
1.320
11
8,3
18,4
180
5.830
13
11,2
24,5
240
4.510
15
14,4
30,7
302
2.750
16
18,6
39,2
384
2.310
18
22,6
46,9
460
1.870
20
27,4
56,0
550
1.540
21
32,1
64,8
635
1.320
23
37,0
73,6
722
1.100
25
42,1
82,7
811
990
27
46,8
90,6
889
820
29
51,7
98,9
970
720
31
56,7
107,1
1.051
660
32
61,7
115,3
1.131
600
33
67,2
124,2
1.218
550
35
73,3
134,2
1.316
510
37
80,8
146,1
1.433
470
39
87,7
156,7
1.538
440
41
95,4
168,5
1.653
400
43
104,7
182,9
1.794
370
45
114,4
197,5
1.937
340
47
124,5
212,3
2.083
310
49
134,9
227,4
2.230
290
51
145,6
242,6
2.380
270
DYNEX Rope Constructions
Hampidjan’s
DYNEX 75 ropes are made from DSM’s Dyneema®
SK75 fibres.The main focus is on the
12-strand braided ropes which have proven very popular for their roundness and
smooth surface.These ropes combine
good strength retention with good flexibility and dynamic properties.
Termination is easy through splicing where up to 90% of linear strength is
retained.
Dyneema SK75 fibre
Density 0.97 g/cm3
Tenacity3.5 N/tex
Modulus120 N/tex
Elongation3.7%
Melting point144-152 °C
Resistance to chemicalsExcellent
UV resistance Good
Flexibility Good
DYNEX Rope Properties
DYNEX ropes exceed
the strength of steel wire ropes of same diameter while floating on water. They have low elongation and are extremely flexible, yielding easy handling in all respects.
