DNA Off Road

Dynamica winch extension rope

Dynamica winch extension rope

The Dyneema Fibre Properties

Strength
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.

DYNAMICA ropes from Netmark are produced in both varieties of the Dyneema fibre SK60 and SK75.

Breaking strength [at the splice - (weakest point) in tonnes]

8mm 6.6, 10mm 8.5, 11mm 12.7, 12mm 16.0, 14mmm 20.0, 16mm 24.0, 18mm 32.2, 26mm 55.0, 32mm 78.5, 44mm 141.0

Tension - Tension Fatigue
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.

Safety
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.

UV Stability
Dyneema has a better stability to sunlight than other relevant fibres. After two years of constant 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.

Abrasion
Dyneema has an excellent abrasion resistance compared with other synthetic fibres (five times better than polyester). Special care has to be taken, however, to ensure that it moves over clean, non abrasive, non-rusty surfaces etc.

Sharp edges etc. should be avoided.

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

Applications:
• 4WD winch replacement ropes
• Offshore applications
• Fisheries
• Bridels, Gilson lines, seam lines, front end meshes.
• Lifting applications
• Mooring
• Towing

Dynamica - Winch Rope Packs
Rope packs include splice at both ends with wear protector, 2 metre rope protector sleeve, instructions and hints on rope care.

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DNA Off Road Pty Ltd | Melbourne Australia | Ph 1300 GO2 DNA [1300 462 362]