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Energy supply systems for telescopes and antennas

The combination of solid steel construction, precision engineering, and sophisticated electronics make modern telescopes, observatories, and antennas high-tech machines. For more than 20 years, telescope builders worldwide have used igus energy chains, cables, and complete solutions. In elevation, azimuth, and GIR, they provide reliable energy supply for many years. 

Advantages of energy chain systems:

  • Lightweight plastic chains weigh 43% less than steel energy chains
  • Low friction, drive force, and vibration, wear-resistant, and easy to handle on the construction site
  • Worldwide service and guarantee
  • Easy cooperation with experienced telescope specialists
e-chain systems in an astronomical observatory

Elevation/altitude

The angle between the orientation of a telescope or antenna and the ground is called elevation or altitude. It is key to orienting mirrors or telescopes correctly. Energy chains are used to guide the cables during vertical movement.

e-chains in altitude
e-chain E4.1

E4.1 energy chain

  • Our standard for almost all applications
  • Robust, quiet, and modular
  • Easy to assemble and fill
More information about the E4.1 series

Azimuth

In addition to the vertical angle, horizontal rotation is the crucial movement in telescopes and antennas. This rotation is called azimuth. Simple igus rotation systems allow rotation angles of up to 600°. This example shows two reverse chains on each of two levels.

Azimuth with RBR system
RBR system

RBR system

igus has been involved in systems for circular energy chain movement for many years. Our Reverse Bend Radius (RBR) systems have proven themselves worldwide in numerous industries as a solution for rotation angles of up to 600°.

Learn more

Azimuth/GIR

Below the azimuth, in the "belly" of the telescope, all the system's cables come together. This special pivot point is also called the azimuth or GIR. Managing the volume of cables safely and reliably is a major challenge. So energy chains and cables are often distributed across various levels. This example shows two chains running into each other on each of three levels.

Azimuth/GIR with MRM system
MRM system

MRM system

For applications with a rotation angle of more than 600°, we have developed the Multi Rotation Module (MRM). It extends rotary motion to additional levels, allowing rotation angles of up to 900°.

Learn more
Telescope rotary movements

Other application areas

In addition to altitude, azimuth, and GIR, which are among the biggest challenges for telescope energy chains, there are other potential applications. For example, there are also moving cables in the rotating motion of the domes, which are usually gigantic, and in the hatch closing systems. Here, too, our energy chains provide protection while ensuring light, smooth operation.


Engineering projects and special solutions

We support you not only by reliably supplying chains and cables, but also in designing the overall system. Our engineering team has many years of experience in equipping telescopic systems worldwide, from the first sketch to installation and on-site commissioning.
Engineering planning

Successfully in use



The terms "igus", "Apiro", "chainflex", "CFRIP", "conprotect", "CTD", "drylin", "dry-tech", "dryspin", "easy chain", "e-chain", "e-chain systems", "e-ketten", "e-kettensysteme", "e-skin", "e-spool", "flizz", "ibow", "igear", "iglidur", "igubal", "igutex", "kineKIT", "manus", "motion plastics", "pikchain", "readychain", "readycable", "ReBeL", "speedigus", "triflex", "robolink", "xirodur", and "xiros" are legally protected trademarks of the igus® GmbH/ Cologne in the Federal Republic of Germany and where applicable in some foreign countries.

igus® GmbH points out that it does not sell any products of the companies Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsubishi, NUM,Parker, Bosch Rexroth, SEW, Siemens, Stöber and all other drive manufacturers mention on this website. The products offered by igus® are those of igus® GmbH