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Dynamica Rope Technique parameter   
DYNAMICA rope is the most compact Dyneema rope in the world. DYNAMICA rope is coated with a unique coating that ensures shape stability and increased abrasion resistance for longer working-life. The rope is heat-set under tension to ensure maximum strength, durability and uniformity.     
The Dyneema fibre Properties        
Physical Properties of Dyneema fibers        
   Water and chemicals      Mechanical  
   Moisture regain none    Creep (22oC, 20% load) 1.10-2 % per day
   Boiling water shrinkage <1%    Axial tensile strength 3 GPa
   Attack by water none    Axial tensile modulus 100 GPa
   Resistance to acids excellent    Axial compressive strength 0.1 GPa
   Resistance to alkali excellent    Axial compressive modulus 100 GPa
   Resistance to most chemicals excellent    Transverse tensile strength 0.03 GPa
   Resistance to UV light very good    Transverse modulus 3 GPa
  Electrical      Thermal  
   Resistance > 1014 Ohm    Melting point 144 - 152o C
   Dielectric strength 900 kV/cm    Thermal conductivity (along fiber axis) 20 W/mK
   Dielectric constant (22oC, 10 GHz) 2.25    Thermal expansion coefficient -12.10-6 per K
   Loss tangent 2.10-4      
Dyneema is more than ten times stronger than steel per unit of weight. This means that a Dyneema rope has a slightly higher strength than a steel wire of the same dimension – but less than one tenth of the weight.    
Breaking Strength for SK75  Bending-bending fatigue      
Diameter mm  Minimum breaking load in tonnes
04 mm
1.3 t
05 mm
2.6 t
06 mm
3.7 t
08 mm
7.3 t
10 mm
10.9 t
12 mm
17.8 t
14 mm
21.7 t
16 mm
26.1 t
18 mm
35.8 t
20 mm
40.8 t
22 mm
53.6 t
24 mm
57.8 t
26 mm
59.8 t
28 mm
75.3 t
30 mm
77.8 t
32 mm
87.2 t
34 mm
92.2 t
36 mm 
106.7 t
38 mm
145.6 t
40 mm
166.7 t
44 mm
193.3 t

Dyneema has good bending-bending properties. However it is recommended to bend over diameters of at least five times the
diameter of the rope.  

* The above breaking strengths are the breaking strengths of ropes. Splices will decrease the breaking strengths by app. 10%. All the tecnical characteristics are strictly indicative. They can not engage the responsibility of Dynamica Ropes ApS. We reserve the rights to change them without prior notice.  
Tension fatigue  Safety      
Dyneema can sustain a very large number of peak loads
(loads close to the breaking strength). This gives a long
life and a high safe-working load. While steel-wire can
take 6500 loads at 50 % of the maximum breaking load
a DYNAMICA rope can take 10 million cycles at the same
load level. DYNAMICA rope is therefore an excellent
material for dynamic applications. 
Dyneema has a very low elongation (2-3% at break). It stores little energy and has therefore little backlash – even at hundreds of tonnes of load. This is a very important safety-feature.
Dyneema has a better stability to sunlight than other relevant fibres. After two years of exposure 80% of the strength is retained.
Resistance to chemical substances        
Dyneema is resistant to chemical substances and will not be affected by oil acids or other substances.
Dyneema has an excellent abrasion resistance compared with other synthetic fibres (five times better than polyester). Special care has to be taken, however, in order to ensure that it moves over clean non-rusty surfaces etc.Sharp edges etc. should be avoided.    

Copyright 2001 LINAN EURO-CHINA Co., Ltd. Last modify: 09.18.2011 Questions about our products,
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