Cobra 2 tonne Rope

Technical specifications:
Material: Polypropylene monofil, blackened
Braiding: 8-fold
Diameter: 14 mm
Tensile strength: 3.45 t
Tensile strength of the system with shock absorber: 3.0 t
Ultimate ductile yield: approx. 17 %
Service ductile yield (loaded with 20 – 60 %): 3 – 9 %
Ageing: 2 - 3 % per year
Service life: 12 years

Description:
The cobra 2t is made of polypropylene monofilaments braided into a hollow cable with a diameter of 14mm and has a tensile strength of 3.45 t. The 8-fold braiding of three yarns allows for an unproblematic insertion of expanding insert and shock-absorber. Also the manual preparation of the quick splice is very easy - without any tools. The initial tensile strength of the system is 3.0 t.
The cobra 2t cable has an ultimate ductile yield of 17 % and a service ductile yield between 3 - 9 %.
The polypropylene monofilaments are extremely resistant to environmental influences and therefore have an excellent durability - they lose 2 - 3 % of their tensile strength per year of service. That is why the cobra 2t system is extremely long-lived and can reliably protect a tree from damage for a period of 12 years.

Cobra 2 tonne Endcap

Technical specification:
Material: Polyolefin basis
Dimensions: 24 x 50 mm (not shrunk)
Temperature range: -55 °C to 135 °C
Shrinking rate: 1:3
Minimum shrinking temperature: +80 °C

Short description:
Shrink-on sleeve for a clean cable end and for tagging installation year and system type,

Description:
The cobra 2t endcap is a shrink-on sleeve that shrinks under the influence of heat. In cobra systems, it is pulled over the end of the cable and shrunk-on with the help of the cobra blow torch - that gives you a clean end of the cable and a fine point for making the quick splice.

Colour:
Every year comes with a different colour and an imprint of the installation year and the type of the cobra tree cabling. That way the endcap serves to easily determine the age and type of installation during a tree inspection.
Notice: If you prefer to use tape instead of a endcap to fix the end of the cable you may pull the endcap over the cable as a signal sheet.

Cobra 2/4 tonne Expanding Inserts

Technical specifications:
Material: Polypropylene
Dimensions:

Short description:
Insert to enlarge the contact surface of the cable on the stem for pressure reduction.

Description:
The cobra 2t/4t expanding inserts can be used in the cobra 2t and cobra 4t systems. It enlarges the contact surface of the cable on the stem thereby reducing the surface pressure under wind loads. That way, pressure damage on bark and cambium is effectively avoided and a lacing-up is prevented. The pointed ends allow for easy insertion into the cable.
The point of insertion is determined by adding 20 cm to the circumference of the branch. The length of the expanding insert to be installed should be at least 2/3 of the branch circumference - just choose the appropriate expanding insert length from cobra's range of products.

Cobra 2/4 tonne Anti-Abrasion Hose

Technical specification:
Material: Polypropylene
Dimensions: 8cm wide

Short description:
Textile hose to protect cable and tree against abrasion.

Description:
The cobra 2t/4t anti-abrasion hose is a braided hose strap made of polypropylene that is pulled over the cobra cable at the anchorage point of the tree cabling. That prevents the cable from chafing on the branch while the branch is moving in the wind. That way, damage to bark and cable is avoided in a simple yet effective manner. The length of the anti-abrasion hose to be installed should be equal to the circumference of the branch and can be cut accordingly with the help of scissors.