Composite cables │ from CG TEC.

Multilayer basalt tube

for high temperature, high pressure & high voltage environments
Hybrid constructions available for various multi-purpose requirements

The multilayer basalt tube is a new type of composite core that combines a high performance basalt fibre, stainless steel pipes of high-grade thickness, a communication element (fibre optics, coaxial or copper wires) with an optional polyamide, polyethylene or highly dense polyethylene sleeve. This composite cable core has excellent properties: lightweight, high-grade thickness, high temperature resistant, lower performance loss and minimal sagging.

The cable is based on a new high-tech material: basalt mineral fibres, an alkaline volcanic rock. The material was originally used as thermal insulation for nuclear reactors and has now been further developed as a material composition that prevents practically any cable breakage. Frequent repairs due to cable breakage are now a thing of the past. Its unique properties mean that it is practically indestructible, insusceptible to breakage yet still maintains its functionality at very high temperatures.

Depending on the required task, the stainless steel pipe is configured at the same time with a varying number of optical and copper lines for the transmission of control signals and data signals. Despite its outstanding protective properties, the new hybrid cable is extremely lightweight, unlike armoured cable for example. It is intended for permanent installation, e.g. for wiring buildings and tunnels.

Properties of basalt fibres

  • Application temperature: -30°C up to +70°C
  • Highest temperature: +80°C
  • Melting point: 1500°C
  • Weight: approx. 31 kg/km
  • Gnaw protection
  • Chemically resistant
  • Natural product
  • Resistant to bending
  • High tensile strength up to 29 kN
  • Can be used as a push rod
  • Available as an option with polyamide, polyethylene or highly dense polyethylene shrouding.
  • Break load up to 12 kN
  • Resistant to fire


Hybrid cable with basalt and glass │ For reliable data transfer.

In addition to its expertise in the area of production and processing of fibre composite components / sub-assemblies, the family-run medium-sized business has enhanced its portfolio to include the production of push rod cables and hybrid cables. The cable is based on a new high-tech material. Here, the data transfer elements (star quad, coaxial cable) - or depending on customer requirement - are protected by tough, thin basalt fibres and glass fibre rods. These cables are therefore extremely resistant, very flexible, have a high return force and can also withstand huge mechanical forces.

Hybrid cables - lightweight, individually adaptable and "HD ready"

Despite their good push stability, the hybrid cables are comparably lightweight and flexible. The hybrid cable is HD ready and is therefore also capable of transferring high resolution video material without trouble.

Basalt - originally for insulating core reactors

Basalt is a basic volcanic rock that exhibits resistance to pressure and wear. It is on account of these properties that it was originally employed as insulating material for core reactors, though it is now also used in composite cables from CG TEC. Cable breakages or other types of damage are almost completely ruled out thanks to this material composition.

Properties of composite cable

Precise technical specifications can be gleaned from the relevant data sheets, though a brief overview is provided here of some of the key data:

  • Operating temperatures from -30°C to +100°C
  • Very good reset behaviour
  • Extremely tight radii possible
  • Customer-specific configuration possible

The cables are distinguished by their flexibility as well as elasticity and can accommodate a very small bend radius, which means that bends of over 120° are possible.